1990 IROC timing belt issue
07-17-2010, 10:36 AM
#1
Junior Member
Thread Starter
Join Date: Jul 2010
Posts: 14
Likes: 0
Received 0 Likes
on
0 Posts
1990 IROC timing belt issue
so here's my story:
i bought my 1990 IROC about 2 weeks ago, but getting it started every time gives me trouble. When i talked to the previous owner about it, he said he had advanced the timing belt for maximum performance. Now my question for the people of this forum is; how do I go about changing it back to factory default setting? That's all I really want.
i bought my 1990 IROC about 2 weeks ago, but getting it started every time gives me trouble. When i talked to the previous owner about it, he said he had advanced the timing belt for maximum performance. Now my question for the people of this forum is; how do I go about changing it back to factory default setting? That's all I really want.
07-17-2010, 10:38 AM
#2
Supreme Member
iTrader: (5)
Join Date: Jan 2009
Location: league city
Posts: 2,928
Likes: 0
Received 3 Likes
on
3 Posts
Car: SOLD!!!!!
Re: 1990 IROC timing belt issue
if it is an iroc with a 305 tpi then it doesnt have a timing belt. it has a timing chain. you would have to pull the front cover and bring it up on top dead center and see if the dots on the cam and crank gear line up.
07-17-2010, 08:49 PM
#4
Supreme Member
Join Date: Jan 2003
Location: Houston, Texas
Posts: 2,133
Likes: 0
Received 2 Likes
on
2 Posts
Car: 88' IROCZ
Engine: 388 TPI Motown 350 Race block
Transmission: 700R4
Axle/Gears: 2.77
Re: 1990 IROC timing belt issue
I don't think the PO actually advanced the timing by repositioning the timing gears by removing them. Use the timing procedure in the TGO Tech articles.
Thread
Thread Starter
Forum
Replies
Last Post
1992 Trans Am
History / Originality
27
05-10-2023 07:19 PM
eightsixseven
Tech / General Engine
1
08-14-2015 03:09 PM
mustangman65_79
Body
3
08-11-2015 03:17 PM
