on the front cover,,,water pump seal for sure. theres a sticky on it i think its on the top of the 4th gen or lt1 section in one of em. 69 did a write up on making a seal install tool outa a marker end cover.

 

seals- as crab said, the top one for sure but the 2nd one is not a bad idea. The 3rd, or bottom one requires removal of the hub so if it's dry, let it be.

And about the coil wire- I should have pointed out that when i said i saw one go bad only when hot, it did not necessarilly mean on the LT1 engine, but on the LT1 I did have a flaky opti harness that was random and I just took a wild guess, replaced it and got lucky. But, I have had my share of bad GM optisparks so whether you get GM, summit, MSD whatever, you have the same risk with respect to QA (quality assurance)

I understand that 100% of the parts made won't be 100% good but that's ok with items that are easy to gain access, not optisparks or fuel pumps.....uuuggghhhhhh

 

Be careful installing the seal on the waterpump shaft, I put mine on wrong the first time and ruined a new GM opti. It is very tricky and if the seal folds outward, it will leak oil into your opti. The timing chain slings oil pretty hard and it will need to be on correctly like they are saying. Here is the thread by camaro69 that craby mentioned.

https://camaroforums.com/forum/lt1-lt4-tech-9/installing-water-pump-drive-seal-43601/

,

 

How do I get the bottom pully off of the opti? I already removed the 3 bolts from the front of it?

 

Will a Cardone brand work?

 

did you get the pully off. sometiems you need to put a puller on it. can work it off usually. cordone brand opti? you want a gm performance opti. the others arrr not near as good a quality.

 

I dont know where to buy a GM Performance. And all the MSD brands are $600

 

http://www.summitracing.com/parts/ACF-1104032/

 

My dad doesnt want me to spend that much on a distributor. We are gonna try a new cardone brand opti. its $220, has a warranty I think so Im good either way

 

ok dont be surprized if your changing the opti again in a short time. may last a month may last a few years just dont know.