Relocating Tachometer Potentiometer and Quest 125A Alternator Install Pics

[sepulchralx]

This is for anybody curious whether or not they should do these "mods", just to show they're really very easy.



i desoldered the stock potentiometer and ran wire through the holes on the circuit board... make sure you remember which pin went where from the pot. Its pretty self explanatory, just extend the wiring 20" and tape up. Drill a hole in the bottom of your white plastic cluster shrouding and run it through.





Hook your car up to something that gives the RPM, or if you already know the base resistance you need, you can adjust it with a multimeter. Set it and FORGET IT!!! (tuck it away)



Quest alternator on left, rb25 on right... you need to take the expansion ring out of one of the mounting holes on your RB bracket and swap it over (replace the ring) on the Quest mounting hole. Then drill out the other hole to the same ID... looked like 3/8".



You need to grind down the stock spacer about 3/16" or so... if you grind too much it won't hurt anything, just don't get to the hole.



you need a bolt about 1" longer than stock.. You dont have to use metric because long metrics are hard to come by.. just get a 3/8 coarse thread bolt and a nut. You may need to cut the bolt a bit shorter, just field fit it and washer it up/cut to size.







The bracket needs to be tackwelded in place... you can also bend the metal to make a bracket, but bending helps fatigue steel if its not very ductile. I use 3/16" steel for my bracket. I can get the dimensions later.

Modified by sepulchralx at 9:24 AM 2/15/2009

Modified by sepulchralx at 9:25 AM 2/15/2009
Modified by sepulchralx at 9:27 AM 2/15/2009

[240z4u]

Well, since I am generally first to crap on your threads, Ill be the first to say nice job. I like your idea with using the stock alternator bracket. I like that better than my turnbuckle setup I am using now!

Evan

[onepuff]

Looks like you did a good job. You might want to edit your post with a little explanation of what you did though. The pics alone aren't really that self explanatory.

[sepulchralx]

Well, since I am generally first to crap on your threads, Ill be the first to say nice job. I like your idea with using the stock alternator bracket. I like that better than my turnbuckle setup I am using now!

Evan

spank you very much

[Nissan2367]

One month later and i am bringing it back from the dead... (Cue picture of hand coming out of a grave) Search button Anyway i am looking inot this just because my car seems to have some slight charging issues and everyone says to upgrade to the Quest.What year Quest did did this one come off?also do you need to swap the pully from the stock over to the Quest one? And did the belts just line up?Thanks and sorry if they are newbish questions!

[sepulchralx]

One month later and i am bringing it back from the dead... (Cue picture of hand coming out of a grave) Search button Anyway i am looking inot this just because my car seems to have some slight charging issues and everyone says to upgrade to the Quest.What year Quest did did this one come off?also do you need to swap the pully from the stock over to the Quest one? And did the belts just line up?Thanks and sorry if they are newbish questions!

You dont have to swap the pulley over, just put the belt on the back four grooves on the alt. pulley... Belts lined up fine... you can make a bracket or I can make one for you for $20 (just cuz id have to take mine off to measure it)

Its a nice, easy, worthy install

[l0nestar]

One month later and i am bringing it back from the dead... (Cue picture of hand coming out of a grave)

You mean like this? :-D

What year Quest did did this one come off?

I used a 94 Quest / Mercury Villager / Ford somethingStar.

[Nissan2367]

^Hahaha Yeah that would be the one!!!^

Sweet good to know! I am going to keep it in mind for future upgrades! Ill make my own bracket but thanks!!!

[240z4u]

Hey dude, I have a buddy that has one sitting around who will sell it to you for a good price. Its new. He would have to ship it to you.