grab*

 

"them" being H-style bolts. Sorry for spaming messages. I need to re-read my text better before posting.

 

Thanks for the support Northernrebel27!

Unfortunately I cannot say with certainty when Mazda made the change to H style bolts. Considering the info provided by Cloud9 its seems that it happened sometime after 1995. But as mentioned above it should not be too difficult to check, as most of the bolts are visible. I also think the same bolt style change happened on the MX-5 so maybe there is more info form the Miata community?

 

Honestly, it couldn't hurt to replace the eccentric bolts and nuts while you're in there. Especially if you have had a lot of alignments over the years or do autox or lots of track days. The threads stretch over time and the area where the threads on eccentric cam bolts touch the washer sometimes get a little chewed up.

I replaced my eccentric bolts a couple of years ago. Sourced them from Ray Crowe of course. Hopefully they don't become NLA...

 

after double checking , I have H Style bolts.

1. Cloud9 - D-Style bolts x1 set
2. Dannng - D-Style bolts x1 set
3. Wazway - D style bolts x1 set (unless you sell H-bolts as well as an "upgraded" setup)
4. estevan62274 - D-Style bolts x1 set
5. Yellowt2 - x1 set (need to check which style bolts I have)
6. Narfle - D-Style bolts x1 set (interested in H-bolt options)
7. SonnyDeez - x1 set, Need to check which bolts I have -- probably D but they've been replaced a few times
8. BLUE TII - "H" bolts 1x set
9. Zweetz32 - D-style bolts 1 set. Will double check if it's D or H
10. su_maverick - x1 set but need to check bolts
11.7krayziboi - H-style x1***
12. drifter-s - D-style bolts x1 set
13. primerGrey - D-style bolts x1 set
14. ColdFeet - D-style bolts x2 sets (need to confirm if D or H)
15. candrzej2 - D-style x1 set
16. Akomix - D-Style x1 set
17. James2u - H-style x1 set
18. Chon - x1 set (need to confirm D or H style
19. NorthernRebel27 - X1 set D-style x1H style

 

ÉDIT.

1. Cloud9 - D-Style bolts x1 set
2. Dannng - D-Style bolts x1 set
3. Wazway - D style bolts x1 set (unless you sell H-bolts as well as an "upgraded" setup)
4. estevan62274 - D-Style bolts x1 set
5. Yellowt2 - x1 set (need to check which style bolts I have)
6. Narfle - D-Style bolts x1 set (interested in H-bolt options)
7. SonnyDeez - x1 set, Need to check which bolts I have -- probably D but they've been replaced a few times
8. BLUE TII - "H" bolts 1x set
9. Zweetz32 - D-style bolts 1 set. Will double check if it's D or H
10. su_maverick - x1 set but need to check bolts
11.7krayziboi -H-style x1***
12. drifter-s - D-style bolts x1 set
13. primerGrey - D-style bolts x1 set
14. ColdFeet - D-style bolts x2 sets (need to confirm if D or H)
15. candrzej2 - D-style x1 set
16. Akomix - D-Style x1 set
17. James2u - H-style x1 set
18. Chon - x1 set (need to confirm D or H style
19. NorthernRebel27 - X1 set D-style

 

I’m curious how fine the adjustment in the suspension will be when it’s limited to the tooth count on these washers. The fact that it will lock in your alignment and you could even paint mark multiple alignment settings makes these very enticing to reduce trips to the alignment shop. In for more updates.

matt

 

1. Cloud9 - D-Style bolts x1 set
2. Dannng - D-Style bolts x1 set
3. Wazway - D style bolts x1 set (unless you sell H-bolts as well as an "upgraded" setup)
4. estevan62274 - D-Style bolts x1 set
5. Yellowt2 - x1 set (need to check which style bolts I have)
6. Narfle - D-Style bolts x1 set (interested in H-bolt options)
7. SonnyDeez - x1 set, Need to check which bolts I have -- probably D but they've been replaced a few times
8. BLUE TII - "H" bolts 1x set
9. Zweetz32 - D-style bolts 1 set. Will double check if it's D or H
10. su_maverick - x1 set but need to check bolts
11.7krayziboi -H-style x1***
12. drifter-s - D-style bolts x1 set
13. primerGrey - D-style bolts x1 set
14. ColdFeet - D-style bolts x2 sets (need to confirm if D or H)
15. candrzej2 - D-style x1 set
16. Akomix - D-Style x1 set
17. James2u - H-style x1 set
18. Chon - x1 set (need to confirm D or H style
19. NorthernRebel27 - X1 set D-style
20. Petawabit - x1 set, need to confirm compatibility with my subframe

__________________

 

I just bought all new eccentric bolts and did an alignment, this is right up my alley.

1. Cloud9 - D-Style bolts x1 set
2. Dannng - D-Style bolts x1 set
3. Wazway - D style bolts x1 set (unless you sell H-bolts as well as an "upgraded" setup)
4. estevan62274 - D-Style bolts x1 set
5. Yellowt2 - x1 set (need to check which style bolts I have)
6. Narfle - D-Style bolts x1 set (interested in H-bolt options)
7. SonnyDeez - x1 set, Need to check which bolts I have -- probably D but they've been replaced a few times
8. BLUE TII - "H" bolts 1x set
9. Zweetz32 - D-style bolts 1 set. Will double check if it's D or H
10. su_maverick - x1 set but need to check bolts
11.7krayziboi -H-style x1***
12. drifter-s - D-style bolts x1 set
13. primerGrey - D-style bolts x1 set
14. ColdFeet - D-style bolts x2 sets (need to confirm if D or H)
15. candrzej2 - D-style x1 set
16. Akomix - D-Style x1 set
17. James2u - H-style x1 set
18. Chon - x1 set (need to confirm D or H style
19. NorthernRebel27 - X1 set D-style
20. Petawabit - x1 set, need to confirm compatibility with my subframe
21. Gdub29e ~ x1 set with new H style.

 

1. Cloud9 - D-Style bolts x1 set
2. Dannng - D-Style bolts x1 set
3. Wazway - D style bolts x1 set (unless you sell H-bolts as well as an "upgraded" setup)
4. estevan62274 - D-Style bolts x1 set
5. Yellowt2 - x1 set (need to check which style bolts I have)
6. Narfle - D-Style bolts x1 set (interested in H-bolt options)
7. SonnyDeez - x1 set, Need to check which bolts I have -- probably D but they've been replaced a few times
8. BLUE TII - "H" bolts 1x set
9. Zweetz32 - D-style bolts 1 set. Will double check if it's D or H
10. su_maverick - x1 set but need to check bolts
11.7krayziboi -H-style x1***
12. drifter-s - D-style bolts x1 set
13. primerGrey - D-style bolts x1 set
14. ColdFeet - D-style bolts x2 sets (need to confirm if D or H)
15. candrzej2 - D-style x1 set
16. Akomix - D-Style x1 set
17. James2u - H-style x1 set
18. Chon - x1 set (need to confirm D or H style
19. NorthernRebel27 - X1 set D-style
20. Petawabit - x1 set, need to confirm compatibility with my subframe
21. Gdub29e ~ x1 set with new H style.
22. Davin - x1 (need to confirm)

 

Would you ship to the U.K.?

 

Sure!

 

I know this is a long shot, but is it possible to make bolts for these as well since there is a lot of play?

 

1. Cloud9 - D-Style bolts x1 set
2. Dannng - D-Style bolts x1 set
3. Wazway - D style bolts x1 set (unless you sell H-bolts as well as an "upgraded" setup)
4. estevan62274 - D-Style bolts x1 set
5. Yellowt2 - x1 set (need to check which style bolts I have)
6. Narfle - D-Style bolts x1 set (interested in H-bolt options)
7. SonnyDeez - x1 set, Need to check which bolts I have -- probably D but they've been replaced a few times
8. BLUE TII - "H" bolts 1x set
9. Zweetz32 - D-style bolts 1 set. Will double check if it's D or H
10. su_maverick - x1 set but need to check bolts
11.7krayziboi -H-style x1***
12. drifter-s - D-style bolts x1 set
13. primerGrey - D-style bolts x1 set
14. ColdFeet - D-style bolts x2 sets (need to confirm if D or H)
15. candrzej2 - D-style x1 set
16. Akomix - D-Style x1 set
17. James2u - H-style x1 set
18. Chon - x1 set (need to confirm D or H style
19. NorthernRebel27 - X1 set D-style
20. Petawabit - x1 set, need to confirm compatibility with my subframe
21. Gdub29e ~ x1 set with new H style.
22. Davin - x1 (need to confirm)
23. ad4ever - x2 set, with H style

 

1. Cloud9 - D-Style bolts x1 set
2. Dannng - D-Style bolts x1 set
3. Wazway - D style bolts x1 set (unless you sell H-bolts as well as an "upgraded" setup)
4. estevan62274 - D-Style bolts x1 set
5. Yellowt2 - x1 set (need to check which style bolts I have)
6. Narfle - D-Style bolts x1 set (interested in H-bolt options)
7. SonnyDeez - x1 set, Need to check which bolts I have -- probably D but they've been replaced a few times
8. BLUE TII - "H" bolts 1x set
9. Zweetz32 - D-style bolts 1 set. Will double check if it's D or H
10. su_maverick - x1 set but need to check bolts
11.7krayziboi -H-style x1 / D-Style x1
12. drifter-s - D-style bolts x1 set
13. primerGrey - D-style bolts x1 set
14. ColdFeet - D-style bolts x2 sets (need to confirm if D or H)
15. candrzej2 - D-style x1 set
16. Akomix - D-Style x1 set
17. James2u - H-style x1 set
18. Chon - x1 set (need to confirm D or H style
19. NorthernRebel27 - X1 set D-style
20. Petawabit - x1 set, need to confirm compatibility with my subframe
21. Gdub29e ~ x1 set with new H style.
22. Davin - x1 (need to confirm)
23. ad4ever - x2 set, with H style

 

ior Member
1. Cloud9 - D-Style bolts x1 set
2. Dannng - D-Style bolts x1 set
3. Wazway - D style bolts x1 set (unless you sell H-bolts as well as an "upgraded" setup)
4. estevan62274 - D-Style bolts x1 set
5. Yellowt2 - x1 set (need to check which style bolts I have)
6. Narfle - D-Style bolts x1 set (interested in H-bolt options)
7. SonnyDeez - x1 set, Need to check which bolts I have -- probably D but they've been replaced a few times
8. BLUE TII - "H" bolts 1x set
9. Zweetz32 - D-style bolts 1 set. Will double check if it's D or H
10. su_maverick - x1 set but need to check bolts
11.7krayziboi -H-style x1***
12. drifter-s - D-style bolts x1 set
13. primerGrey - D-style bolts x1 set
14. ColdFeet - D-style bolts x2 sets (need to confirm if D or H)
15. candrzej2 - D-style x1 set
16. Akomix - D-Style x1 set
17. James2u - H-style x1 set
18. Chon - x1 set (need to confirm D or H style
19. NorthernRebel27 - X1 set D-style
20. Petawabit - x1 set, need to confirm compatibility with my subframe
21. Gdub29e ~ x1 set with new H style.
22. Davin - x1 (need to confirm)
23. ad4ever - x2 set, with H style
24. Marky x1 set, need to confirm type (UK)

 

1. Cloud9 - D-Style bolts x1 set
2. Dannng - D-Style bolts x1 set
3. Wazway - D style bolts x1 set (unless you sell H-bolts as well as an "upgraded" setup)
4. estevan62274 - D-Style bolts x1 set
5. Yellowt2 - x1 set (need to check which style bolts I have)
6. Narfle - D-Style bolts x1 set (interested in H-bolt options)
7. SonnyDeez -D-Style x1 set (confirmed it is D)
8. BLUE TII - "H" bolts 1x set
9. Zweetz32 - D-style bolts 1 set. Will double check if it's D or H
10. su_maverick - x1 set but need to check bolts
11.7krayziboi -H-style x1***
12. drifter-s - D-style bolts x1 set
13. primerGrey - D-style bolts x1 set
14. ColdFeet - D-style bolts x2 sets (need to confirm if D or H)
15. candrzej2 - D-style x1 set
16. Akomix - D-Style x1 set
17. James2u - H-style x1 set
18. Chon - x1 set (need to confirm D or H style
19. NorthernRebel27 - X1 set D-style
20. Petawabit - x1 set, need to confirm compatibility with my subframe
21. Gdub29e ~ x1 set with new H style.
22. Davin - x1 (need to confirm)
23. ad4ever - x2 set, with H style
24. Marky x1 set, need to confirm type (UK)

 

1. Cloud9 - D-Style bolts x1 set
2. Dannng - D-Style bolts x1 set
3. Wazway - D style bolts x1 set (unless you sell H-bolts as well as an "upgraded" setup)
4. estevan62274 - D-Style bolts x1 set
5. Yellowt2 - x1 set (need to check which style bolts I have)
6. Narfle - D-Style bolts x1 set (interested in H-bolt options)
7. SonnyDeez -D-Style x1 set (confirmed it is D)
8. BLUE TII - "H" bolts 1x set
9. Zweetz32 - D-style bolts 1 set. Will double check if it's D or H
10. su_maverick - x1 set but need to check bolts
11.7krayziboi -H-style x1***
12. drifter-s - D-style bolts x1 set
13. primerGrey - D-style bolts x1 set
14. ColdFeet - D-style bolts x2 sets (need to confirm if D or H)
15. candrzej2 - D-style x1 set
16. Akomix - D-Style x1 set
17. James2u - H-style x1 set
18. Chon - x1 set (need to confirm D or H style
19. NorthernRebel27 - X1 set D-style
20. Petawabit - x1 set, need to confirm compatibility with my subframe
21. Gdub29e ~ x1 set with new H style.
22. Davin - x1 (need to confirm)
23. ad4ever - x2 set, with H style
24. Marky x1 set, need to confirm type (UK)
25. briansfd x1 set, need to confirm type

 

So I would like to open a discussion with the members who are interested in the lock washers regarding an issue that I stumbled upon. A while back when I was taking subframe measurements (U weld widths, hole length and width etc…) I realized an inconsistency on the FD subframe U weld widths (see attached photo). I have two rear subframes and one front subframe which I used for taking measurements. They all have different U weld widths. The difference is not large, but large enough to notice a difference when trying to design a perfect snug fit between the outer part of the washer and the U weld.



In a perfect world I would of course prefer to have the outer part of the washer to fit nice and tight against the U weld, so even before you put the nut on the eccentric bolt and tighten it…there would be no play. However because of the inconsistent U weld widths this means that one size does not fit all.

A while back I reached out to a few forum members here. I shared my lock washer designs with them and asked for their help if they could also measure their U weld widths so I can get a better idea of what exact differences are we talking about.

So here are the numbers (in millimeters) I have so far:

My subframes

Rear subframe (factory OEM paint):

36.35

36.40

36.70

36.45

Rear subframe (sand blasted and zinc coated):

36.7

36.7

36.5

36.4

Front subframe (factory OEM paint):

36.35

36.75

36.40

36.30

36.75

36.60

36.30

36.65

Forum member 1 measurements:

36.63

36.51

36.30

36.35

Forum member 2 measurements:

Front subframe:

36.43

36.40

36.51

36.58

36.43

36.30

36.40

36.29

Rear subframe:

36.42

36.31

36.39

36.32


My FD is a 93, and forum member number 2 has a 95. So regardless of year the numbers are inconsistent.

Smallest measured is 36.3mm

Largest measured is 36.75mm

Average from the above samples is 36.46mm

For me it’s not an issue to change the width in the CAD software before I send the files to get laser cut. However a final decision has to be made. If I use the average width of 36.46, this means that on some U welds which are let’s say 36.3 wide…the outer lock washer won’t fit and some material should have to be taken off from the flat sides of the outer washer, in this specific example 0.08mm per side.

If I use the one size fits all approach…let’s say 36.3mm which is the smallest width from the sample measurements above…this means that if you use this outer washer on a U weld which is 36.75mm wide you will have 0.45mm of play…or 0.225mm per side (worst case scenario).

Now in all honesty these differences are very very small and most likely will not have any effect once the nut is tightened down, but I also know some people are very serious about their suspension and alignment settings, and this thread is for you. If you are OCD like me and super serious about your alignment, please let me know what you think. I myself tend to get OCD when it comes to tolerances. I wouldn’t want to make these and send them out to fellow forum members just to have some of you disappointed because there is some very slight play between the U welds and outer washer.

I would like to hear what you guys have to say.

One (KISS) option is to cut the outer washer to the average size of 36.46…and then some will have to take off a bit a material (at most ~0.08mm per side) and some will have a tiny bit of play (at most 0.15mm per side).

One more thing to consider is the laser cut does not always produce 100% exact cuts as even professional machines will sometimes have +/- 0.1mm differences. But my idea is to manually check each outer washer just to make sure they are all cut in spec. If any of the washer do not meat spec they will be discarded.

 

meat spec... *meet spec*

 

Hi Davin. What exact play are you referring to?

If you are concerned about the play between the bolts and the washers I made a short video for you guys where I compare the play between the stock bolts and stock washers and the lock washers. As you can see in the video my lock washers significantly reduce the play. But if you are referring to some other possible play please let me know. Making new bolts would significantly increase the cost, but I'm not exactly sure what the benefit would be, if I'm missing something please let me know.

And no I'm not wearing my wife's dish-washing gloves

 

I vote for average size and include a disclaimer that due to the subframes manufacturing tolerances some may need to remove some material and some may experience slight play that will be locked once the nuts are tightened...

 

Bigger is better than smaller, but not as good as perfect

1. Cloud9 - D-Style bolts x1 set
2. Dannng - D-Style bolts x1 set
3. Wazway - D style bolts x1 set (unless you sell H-bolts as well as an "upgraded" setup)
4. estevan62274 - D-Style bolts x1 set
5. Yellowt2 - x1 set (need to check which style bolts I have)
6. Narfle - D-Style bolts x1 set (interested in H-bolt options)
7. SonnyDeez -D-Style x1 set (confirmed it is D)
8. BLUE TII - "H" bolts 1x set
9. Zweetz32 - D-style bolts 1 set. Will double check if it's D or H
10. su_maverick - x1 set but need to check bolts
11.7krayziboi -H-style x1***
12. drifter-s - D-style bolts x1 set
13. primerGrey - D-style bolts x1 set
14. ColdFeet - D-style bolts x2 sets (need to confirm if D or H)
15. candrzej2 - D-style x1 set
16. Akomix - D-Style x1 set
17. James2u - H-style x1 set
18. Chon - x1 set (need to confirm D or H style
19. NorthernRebel27 - X1 set D-style
20. Petawabit - x1 set, need to confirm compatibility with my subframe
21. Gdub29e ~ x1 set with new H style.
22. Davin - x1 (need to confirm)
23. ad4ever - x2 set, with H style
24. Marky x1 set, need to confirm type (UK)
25. briansfd x1 set, need to confirm type
26. TomU - H-style x1

 

+1
I don't mind taking a file to the sides if necessary, and a tiny amount of play is not a big deal.
There will be some play between the washers and bolts anyway (as Spalato posted in the video), so a little play here is not really an issue. I get that the play is additive, so minimizing it where possible is good, but it will still be much better than stock.

 

1. Cloud9 - D-Style bolts x1 set
2. Dannng - D-Style bolts x1 set
3. Wazway - D style bolts x1 set (unless you sell H-bolts as well as an "upgraded" setup)
4. estevan62274 - D-Style bolts x1 set
5. Yellowt2 - x1 set (need to check which style bolts I have)
6. Narfle - D-Style bolts x1 set (interested in H-bolt options)
7. SonnyDeez -D-Style x1 set (confirmed it is D)
8. BLUE TII - "H" bolts 1x set
9. Zweetz32 - D-style bolts 1 set. Will double check if it's D or H
10. su_maverick - x1 set but need to check bolts
11.7krayziboi -H-style x1***
12. drifter-s - D-style bolts x1 set
13. primerGrey - D-style bolts x1 set
14. ColdFeet - D-style bolts x2 sets (need to confirm if D or H)
15. candrzej2 - D-style x1 set
16. Akomix - D-Style x1 set
17. James2u - H-style x1 set
18. Chon - x1 set (need to confirm D or H style
19. NorthernRebel27 - X1 set D-style
20. Petawabit - x1 set, need to confirm compatibility with my subframe
21. Gdub29e ~ x1 set with new H style.
22. Davin - x1 (need to confirm)
23. ad4ever - x2 set, with H style
24. Marky x1 set, need to confirm type (UK)
25. briansfd x1 set, need to confirm type
26. TomU - H-style x1
27. Macer x1 set - need to confirm type ('96 RHD)