My 88 Fiero GT 14k miles (Page 177/194)
BV MotorSports JAN 15, 04:37 PM

quote
Originally posted by Justinbart:

You replaced a know good HTOB with a bad one?




I replaced the original unknown mileage HTOB with the new one SPEC supplied.
darkhorizon JAN 16, 10:24 AM
Htobs really last awhile.... I would never replace one without checking everything either as there are 4 different htobs that are commonly used in f23s.
BV MotorSports JAN 16, 02:29 PM

quote
Originally posted by darkhorizon:

Htobs really last awhile.... I would never replace one without checking everything either as there are 4 different htobs that are commonly used in f23s.



I am hoping its just a defective part. I dont know why it would be anything to the contrary. The previous clutch worked great as you are aware from our tuning session. It did not use a HTOB spacer. I was told I needed the spacer with the SCS pressure plate (extra clamp). Nothing else changed. So either the part is defective or the spacer caused the HTOB to bottom out and it popped a seal is my best guess. Or it could have been damaged when SPEC installed the spacer. I just dont know yet. I am going to bolt the old PP to the flywheel and measure the installed height and compare it to the SCS PP. If they are the same, I will just put the old HTOB back in and call it a day.

I just have rotten luck with this car. it seems anytime I try to do the "right thing", it bites me in the ass. With that said, I will not give up. I know I will prove more stubborn than that inanimate object!
darkhorizon JAN 16, 03:00 PM
Throw the old pressure plate away (figurtively), it wont tell you anything in regards to how your current one is setup. Just seperate the trans off and measure it.

The pressure plate fingers will be at their most compressed when first installed so it should be nearly the same measurement from fingers to block and bell housing to bearing.
BV MotorSports JAN 16, 04:11 PM

quote
Originally posted by darkhorizon:

Throw the old pressure plate away (figurtively), it wont tell you anything in regards to how your current one is setup. Just seperate the trans off and measure it.

The pressure plate fingers will be at their most compressed when first installed so it should be nearly the same measurement from fingers to block and bell housing to bearing.



I found a thread on how to measure to get the exact range. I just need to calm down a bit before taking it back apart. Oh well, there are a few more things I wanted to "fix". lol

http://www.fiero.nl/forum/Forum2/HTML/127262.html
joshua riedl JAN 16, 06:49 PM
For what it's worth, I used the spacer with the same clutch you have. The measurement I found in another thread said to shoot for 2.5" from the clutch fingers to the bell housing surface. The clutch doesn't need a lot of travel to release so I have an over travel issue. I shortened Rodney's adjustable pushrod all the way and it's still not enough. I just don't push the clutch to the floor or it will re-engage. Something to look out for.
BV MotorSports JAN 21, 09:43 PM
Got it all back apart. The HTOB did not over extend. I am not sure if it was defective or damaged when SPEC installed the spacer. It wasn't even on straight. :/ Should be back up and running by the weekend.
BV MotorSports JAN 25, 12:39 AM
Engine is in, clutch works fine.
KissMySSFiero JAN 25, 07:20 AM
Was it just a defective part? Is this the first time you've had it together and running right?

------------------
SSFiero@Aol.com

BV MotorSports JAN 25, 12:01 PM
Thats all it was. The new HTOB was either defective or it had been damaged by SPEC when they pressed on the HTOB spacer. BTW, I am not using a spacer this time. I can tell you the "super clamp" pressure plate, its definitely got a much harder pedal.