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Tachometer problem...

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Old 04-14-14, 08:33 PM
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Working on the bracket for the alternator. need to find someone that can make a really rigid one to make it last. I should be set up fine for the wiring because its not very far off from the S5 alt setup.
Old 04-18-14, 09:20 PM
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Mazdatrix FD Pulley Swapped onto the new Taurus Alternator. Still need to make bracket...
Old 04-19-14, 03:39 AM
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My attempt at an alternator bracket. We'll see if I can bring it to life.
Old 04-19-14, 05:09 AM
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Originally Posted by Mouse2k4
So mister would you recommend I upgrade to an FD alternator? Would literally be plug and play because im already set up for an S5 alt.
Sorry Mouse,I didn't see this until just now.
I have the FD alt on the car and I notice that it needs to be a certain RPM to get excited.(sort of like the ex-wife..lol!)

Well that may be a problem of the way I had it wired,..SO right now I am completing,like YOU the Taurus swap.
I am using the thread in the Sec Gen Archives:
https://www.rx7club.com/2nd-gen-arch...r-swap-963821/

I used round headed carriage bolts instead of nuts and bolts to mate the "extension" onto the alternator bracket,so it looks a little "fancy".The headed just needed to be shaved a touch so that they sit side by side and won't turn.The extension is about 3 inches,not much to work with.
Picture the carriage bolts looking like Like this:
:::: ( I::I ):::::
I shaved the ear,and kept the stock mounting point the same.It seems a "wee bit" off" but I am just checking it out for now as I want to see if that is the problem I am having with the ongoing tuning of the car.I can still shave the ear of the alternator to take off more material if I find it is not aligning correctly.
Then again with all the parts I have,I am finding that really it depends on what pulley you are using to be a factor in clearance and aligning the belts when the alternator is installed.
Again finding a slight difference with pulleys clearing the face of the alternator.So If anyone does this,test fit everything.

Now I have yet to start the car as it is being..again..like the exwife..a total "D***** bag"..lol...
maybe I should trade the car in?..(like I did the EX..)...muahhahaha!
Old 04-19-14, 02:42 PM
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Originally Posted by misterstyx69
Sorry Mouse,I didn't see this until just now.
I have the FD alt on the car and I notice that it needs to be a certain RPM to get excited.(sort of like the ex-wife..lol!)

Well that may be a problem of the way I had it wired,..SO right now I am completing,like YOU the Taurus swap.
I am using the thread in the Sec Gen Archives:
https://www.rx7club.com/2nd-gen-arch...r-swap-963821/

I used round headed carriage bolts instead of nuts and bolts to mate the "extension" onto the alternator bracket,so it looks a little "fancy".The headed just needed to be shaved a touch so that they sit side by side and won't turn.The extension is about 3 inches,not much to work with.
Picture the carriage bolts looking like Like this:
:::: ( I::I ):::::
I shaved the ear,and kept the stock mounting point the same.It seems a "wee bit" off" but I am just checking it out for now as I want to see if that is the problem I am having with the ongoing tuning of the car.I can still shave the ear of the alternator to take off more material if I find it is not aligning correctly.
Then again with all the parts I have,I am finding that really it depends on what pulley you are using to be a factor in clearance and aligning the belts when the alternator is installed.
Again finding a slight difference with pulleys clearing the face of the alternator.So If anyone does this,test fit everything.

Now I have yet to start the car as it is being..again..like the exwife..a total "D***** bag"..lol...
maybe I should trade the car in?..(like I did the EX..)...muahhahaha!
haha nice. throw in some pictures in this thread if you'd like and you can use some of mine for reference... ive been doing crazy amounts of research on this and I want to go really fancy with the bracket instead of shaving the alternator itself to make it easier to swap alternators if I have to.

Also note: Im using the FD to FC pulley from Mazdatrix and it fits perfectly on the taurus alt.
Old 05-10-14, 03:06 PM
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project at a standstill due to the fact that I got a pretty bad cut on my hand that requires I wear a splint
Old 06-08-14, 06:28 PM
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still trying to figure out a bracket for the alternator swap with minimal tools... changed out the O2 sensor and the car seems to be boosting more consistently now and ever since summer hit I havent had a tach problem.
Old 06-11-14, 02:58 AM
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Made this up in this CAD program rofl. might try out this emachineshop.com thing if money permits.
Old 06-30-14, 07:45 PM
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Taurus alternator swap complete!


Boost issues fixed by replacing a rubber cap with some hose with a bolt in it... lol.

So far no tach issues as of summers start.
Old 07-01-14, 02:45 AM
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Okay so I was driving went to a bar about 25 minutes away. started driving home about 10 minutes and the car blew the 80A fuse... Should I put a stronger fuse or did I do it wrong?
Old 07-01-14, 03:20 AM
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was using this 3rd empty slot in the fuse box. Didnt have a problem when I was running an S5 alternator...
Old 07-01-14, 04:00 AM
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If you are putting on a more powerful (load sensing) alt you need to upgrade the alt to battery wiring unless you want melted wires or a fire. Load sensing alts also need a battery voltage reference wire (separate to the main feed) directly to the battery so the alt can maintain a constant battery voltage.
Old 07-01-14, 10:00 AM
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So i know where I went wrong with the wiring... i put the 'I' to the white/black wire not the black/white wire... however now I fear I may have shot out my dash harness or all the switches because when the car blew the fuses everthing went wild... the wipers were going full speed the fan came on and blew hot air at me and all my gauges zeroed out. Idk if this is the case but if anyone has some experience in something similar i must know now!
Old 07-03-14, 05:51 AM
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Some useful reading for you. AusRotary.com • View topic - Alternator upgrades

Sort the alternator wiring out first and then see what you've blown.

My guess is you've over-powered everything when the fuse blew as the alternator had no battery or voltage reference to keep the voltage down or at 14.4v.
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