Hi, Last month the forum gave me some help on engine cradle questions and I’m hopeful that those fine Fiero minds out there can help again.
We are installing a remanufactured 2.8L engine that originally came out of the 1985 Fiero. However, the pilot bushing for the transmission shaft/crankshaft is missing. When we ordered a new bushing, the bushing fits on the crankshaft side, but it is too small to fit onto the transmission shaft. In fact, it seems as though if it did fit, it would be much too thin to work properly. It’s a manual transmission and appears to be the original. We are a bit baffled at this point. There was another pilot bushing available to order, but it was much too large to fit the crank. Any help, ideas, or direction anyone can provide would be appreciated.
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10:25 AM
PFF
System Bot
Robert 2 Member
Posts: 2401 From: St Hubert Quebec Canada Registered: Jan 2006
My thanks to both Robert2 and Dodgerunner for your replies. I think I'm still a bit puzzled by why my "parts" system - ALLDATA - shows a Pilot Bearing (OEM Part#10009785) for a manual transmission for a 1985 Fiero 2.8L. Is it possible that there are two different transmissions for this vehicle and that one has a smaller shaft than the other? I just want to be positive before I put this customer's car back together. Any insight you can provide is certainly appreciated.
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12:24 PM
G-Nasty Member
Posts: 2099 From: woodlands,TX,USA Registered: Jan 2001
I am currently installing a clutch kit into my 87 GT w/ 2.8 My getrag muncie 282 didnt have a pilot bearing...I was also like you baffled when I couldnt find one. I thought it dissentigrated.
The Isuzu 5 spd may need one-Ive never worked on that one.
Also: The getrag needs a little lube where the race seats the input shaft.
Im getting a serious vibration when I put everything together. So I pulled it out yet again to replace all mounts & new flywheel & pressure plate. A certified trans tech told me to tighten the pressure plate bolts to flywheel w/ an impact wrench. He said sometimes the factory torque seq isnt enough. So I hoping the vibration goes away this next time. If not-this POS is going on the auction block
OUT>
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05:10 PM
tjm4fun Member
Posts: 3781 From: Long Island, NY USA Registered: Feb 2006
from the factory parts cd, only the 84 showed a bushing on the 4 cyl. all subsequent years do not show it. I don;t give a crap what all data shows. if you don;t believe me, get the bushing they show. the try to get it to fit over the end of the tranny shaft. not even close. it does fit in the end of the crank rather nicely tho. so if you instal lit in the crank, be prepared for a few long days trying to get the tranny to mount up before you pull it out.
how do I know this? when I did my first fiero clutch job, my local supplier mentioned they showed that part, but is actually for an older 2.8 s10 application. for 2$ I got it, and found it did not fit the end of the isuzu (86 se) but did fit the crank. made a nice alignment guide after turning it down a few thousanths and fitting a spline id shaft to it. I still have it if you want....
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06:55 PM
tjm4fun Member
Posts: 3781 From: Long Island, NY USA Registered: Feb 2006
I am currently installing a clutch kit into my 87 GT w/ 2.8 Im getting a serious vibration when I put everything together. So I pulled it out yet again to replace all mounts & new flywheel & pressure plate. A certified trans tech told me to tighten the pressure plate bolts to flywheel w/ an impact wrench. He said sometimes the factory torque seq isnt enough. So I hoping the vibration goes away this next time. If not-this POS is going on the auction block
OUT>
your trans tech is an idiot. if you changed the flywheel , be sure you have the right one. the v6 changed from externally balance to internally balanced during the 87 model year. you may have the wrong flywheel. that is the mose likely source of the vibration. all's the impact gun will do is round off those thin head bolts. maybe for his simple minded way of knocking out jobs, using a torque wrench isn't enough, but to do it right use a torque wrench, never believe people who work on "it ain;t my car"....
Did you get the alignment tool when you got your clutch? I think you'll discover that it's designed to fit into the end of a crankshaft with no pilot bushing. At least the one that came with my SPEC was designed that way.
Seriously... no pilot bushing is needed.
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07:34 AM
Nov 17th, 2008
86GT3.4DOHC Member
Posts: 10007 From: Marion Ohio Registered: Apr 2004
Originally posted by G-Nasty: A certified trans tech told me to tighten the pressure plate bolts to flywheel w/ an impact wrench. He said sometimes the factory torque seq isnt enough. OUT>
I know this is entirely too late, but reading this from a link from another post... For posterities sake,
NO! The pressure plate bolts are supposed to be torqued to something like 14 ft lbs,(guessing from memory) youd likely pop the heads cleanly off with an inpact. It doesnt matter if they are 10 lbs or 1000 anyway, its metal on metal, theres no compression to be gained in the joint. As long as you have lock nuts and loc-tite on the threads, they will not move.
I have no idea what that guy was thinking, I wouldnt want him working on my tranny.
if you don;t believe me, get the bushing they show. the try to get it to fit over the end of the tranny shaft.
