small vac question on nz's diagram
09-21-04, 10:17 PM
#26
https://www.rx7club.com/attachment.p...chmentid=74572 is this what you are talking about for the slanted nipple in the middle going to the fpr??? See how the fpr is on the bottom??? not on the top like the diagram??? Let me light up a cig real quick and watch the smoke a post in a sec.
ok I just looked and that nipple goes straight throw to the last lim intake track (tube) whatever they are called.
ok I just looked and that nipple goes straight throw to the last lim intake track (tube) whatever they are called.
Last edited by hondahater; 09-21-04 at 10:21 PM.
09-21-04, 10:21 PM
#27
HAILERS
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There's something amiss here. That last picture I would swear is for a NON TURBO. The FPR on my USA turboii is on the secondary fuel rail, at the rear of it at that. I'll stare at that picture a while and write back. That is NOT your car, right??????
NOTE: EDIT: Yes, the slanted nipple is for the fpr. It's just that my USA fpr is not located where the one in the last picture is. I gotta think a way around this.
NOTE: EDIT: Yes, the slanted nipple is for the fpr. It's just that my USA fpr is not located where the one in the last picture is. I gotta think a way around this.
09-21-04, 10:23 PM
#29
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Hailers, that's not tobacco in that cigar you're smoking...The other post was in another thread, the hyperactive rambling about the blue wire on the wiper motor. Which I double checked for you, BTW, just to make sure you didn't get your wiring colors crossed again 
Yes, Honda Dude, FPR...
Yes, Honda Dude, FPR...
09-21-04, 10:27 PM
#30
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MY FPR is located on the upper or primary fuel rail, on the rear end of it.
Your car might very well be right since it is a JSPEC. We know how the JSPEC engines have their fuel lines opposite ours in the USA. So I suppose you really have it located right. Just me I suppose. YES, it is routed right as you have it in RED.
Gotta go back and wipe out that post I made accidentaly in the WIPER thread before he gets as confuese as I seem to be.
Your car might very well be right since it is a JSPEC. We know how the JSPEC engines have their fuel lines opposite ours in the USA. So I suppose you really have it located right. Just me I suppose. YES, it is routed right as you have it in RED.
Gotta go back and wipe out that post I made accidentaly in the WIPER thread before he gets as confuese as I seem to be.
09-21-04, 10:28 PM
#31
Originally Posted by NZConvertible
Double check the fuel lines. As Scott said, they're arranged opposite on J-specs (i.e. supply to secondary rail, return to primary rail. This is a common J-spec swap mistake. 
Last edited by hondahater; 09-21-04 at 10:31 PM.
09-21-04, 10:32 PM
#32
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Lol, I told you, just reverse all of your thinking
The supply line (from the filter) will go to the REAR line on the J-spec, if I understand all of this correctly.
It's the North Koreans' fault...All of it...Hailers might be on to something...'Bout time...
The supply line (from the filter) will go to the REAR line on the J-spec, if I understand all of this correctly.
It's the North Koreans' fault...All of it...Hailers might be on to something...'Bout time...
Last edited by WAYNE88N/A; 09-21-04 at 10:37 PM.
09-21-04, 10:38 PM
#34
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Since the smoke went where you said.....I'd say that rear nipple is for maybe a speed control actuator. Cap it off I say. I lost a post somewhere around here on this forum. Anybody see it. It ain't in the WIPER thread as of five minutes ago. I gotta light up another and get a beer or something. Maybe find another thread to screw with. Yeah!
09-21-04, 10:51 PM
#36
Originally Posted by NZConvertible
The nipple on the J-spec manifolds aren't different location-wise, there's just less of them. The angled nipple on the inside of the LIM is for the FPR (not any of the ones of the UIM). Only one on the front of the UIM is for the solenoids, the other two are for the purge control valve. The slightly bigger one on the back of the UIM is for the oil nozzle air splitter; the other smaller one is for the primary or secondary (can't remember which) air bleed. The one on the outside of the UIM facing the side of the engine bay is for the BOV, and if you're removed the ACV you can tee the pressure sensor line into this line. The really big one on the back of the LIM (not UIM) is for the brake booster.
again nz thank you very much!
funny stuff he's been asnwering questions all night for me and hasn't even posted anything tonight 
09-22-04, 12:18 AM
#40
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I said earlier that our manifolds are different- I don't even know why you're listening to me, lol...
I guess Hailers gave up trying to figure it out too, eh?
You need a guru that speaks Japanese
I guess Hailers gave up trying to figure it out too, eh?
You need a guru that speaks Japanese
09-22-04, 05:50 AM
#44
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Holy crap! Where to begin...
The vac diagram I posted is an edited version of the Turbo vacuum routing diragram from the US-spec 88 FSM. It would seem from other threads beside this one that the S4 does not have a secondary injector air bleed despite the unmolested vac diagram showing one. However this may just be a J-spec thing, since Hondahater's J-spec doesn't have one and neither does mine. Perhaps some North American S4 TII owners could confirm either way. But in this case, just don't worry about it. You don't have one.
The other thing missing from the original diagram is the forth nipple at the bottom on the rear of the UIM, which is for the double-throttle system. Stangely, the Haynes manual has the same diagram but it does show that nipple clearly. However, this is another thing that J-spec engines don't have. On the back of the J-spec UIM there are only two nipples; a big one for the oil nozzle air bleeds and a small one for the primary injector air bleeds. Both are fed from before the throttle and so never see vacuum.
The angled nipple on the inside of the LIM is for the fuel pressure regulator. Once again, just to be sure, the angled nipple on the inside of the LIM is for the FPR. OK?
AFAIK, all J-spec engines have the PD and FPR in opposite locations to US models, but some guys have posted that their J-spec engnes weren't like that. Whatever the truth is, all you need to do is follow this simple rule. The PD has no vac nipple on it, and the rail with the PD is connected to the supply line (the one from the fuel filter). The FPR does have a vac nipple on it (connected as above), and the rail with the FPR is connected to the return line. Get these mixed up and the engine simply won't start.
That really big nipple on the back of the UIM in Hondahater's pic even has me stumped. I don't have that. It might be an alternative location for the brake booster line, but that's not where mine is. Don't forget that J-scec engines come from RHD cars, so the brake booster is going to be in a different location anyway (compared to LHD cars). You can see mine in the attached pic.
I hope that sorts everything out, but I'm sure there'll be more...
The vac diagram I posted is an edited version of the Turbo vacuum routing diragram from the US-spec 88 FSM. It would seem from other threads beside this one that the S4 does not have a secondary injector air bleed despite the unmolested vac diagram showing one. However this may just be a J-spec thing, since Hondahater's J-spec doesn't have one and neither does mine. Perhaps some North American S4 TII owners could confirm either way. But in this case, just don't worry about it. You don't have one.
The other thing missing from the original diagram is the forth nipple at the bottom on the rear of the UIM, which is for the double-throttle system. Stangely, the Haynes manual has the same diagram but it does show that nipple clearly. However, this is another thing that J-spec engines don't have. On the back of the J-spec UIM there are only two nipples; a big one for the oil nozzle air bleeds and a small one for the primary injector air bleeds. Both are fed from before the throttle and so never see vacuum.
The angled nipple on the inside of the LIM is for the fuel pressure regulator. Once again, just to be sure, the angled nipple on the inside of the LIM is for the FPR. OK?
AFAIK, all J-spec engines have the PD and FPR in opposite locations to US models, but some guys have posted that their J-spec engnes weren't like that. Whatever the truth is, all you need to do is follow this simple rule. The PD has no vac nipple on it, and the rail with the PD is connected to the supply line (the one from the fuel filter). The FPR does have a vac nipple on it (connected as above), and the rail with the FPR is connected to the return line. Get these mixed up and the engine simply won't start.
That really big nipple on the back of the UIM in Hondahater's pic even has me stumped. I don't have that. It might be an alternative location for the brake booster line, but that's not where mine is. Don't forget that J-scec engines come from RHD cars, so the brake booster is going to be in a different location anyway (compared to LHD cars). You can see mine in the attached pic.
I hope that sorts everything out, but I'm sure there'll be more...
Last edited by NZConvertible; 09-22-04 at 06:08 AM.
09-22-04, 08:33 AM
#45
thanks nz for the help can you confirm at the top of this page the picture of my uim that the big nipple on it is for the brake booster??? Also my uim has 3 nipples???? Man this is crazy! but probably a jspec core and lim and aspec uim I'm guessing. Thanks again man.
09-22-04, 04:18 PM
#48
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Why don't you just throw everything together as well as you can, and THEN take a good look around and figure out what still needs a home (or a vac source, lol)...
After all this trouble, you may end up putting caps/plugs on a lot of those nipples anyway, right?
After all this trouble, you may end up putting caps/plugs on a lot of those nipples anyway, right?
09-22-04, 08:45 PM
#50
ok nz I'm going to need your help! look at the picture and see there are only three nipples not four on my uim. So what does this mean??? oh and also notice where the nipple is for the oil injector bleed ( in the middle ).
here is a quote from nz: damn how come my car has to be the odd ball
On the back of the A-spec UIM there are four nipples. The bottom one is fed from behind the throttle (vacuum) and the top three are fed from in front of the throttle (no vacuum).
On the back of the J-spec UIM there are two nipples. Both are fed front in front of the throttle (no vacuum).
I've got three nipples, lol, sounds funny but what a shitty problem!!!
here is a quote from nz: damn how come my car has to be the odd ball
On the back of the A-spec UIM there are four nipples. The bottom one is fed from behind the throttle (vacuum) and the top three are fed from in front of the throttle (no vacuum).
On the back of the J-spec UIM there are two nipples. Both are fed front in front of the throttle (no vacuum).
I've got three nipples, lol, sounds funny but what a shitty problem!!!
Last edited by hondahater; 09-22-04 at 08:56 PM.