gvincent

Hi, I have an 1995 LT1 motor with only 80K, I think it spun a rod or crank bearing. There is a deep knocking sound in the motor, I have not even driven the car, I am still just finishing the wiring and and haven't finished doing the programming with TunerCAT. Have only run it a few times since it was pulled out of a totaled firebird last fall.
Anybody nearby that can come over and listen and confirm my suspicions or diagnose the noise?
If true can anybody recommend a re-builder or have another LT1 for sale cheap? I never planned on this happening!
Super bummed out, so close to finishing and never got a chance to drive it!!!!
PLEASE HELP
I am in Norton MA
work 339-502-6551
cell 508-243-4752
email gregory.vincent@comcast.net
Greg

jgeorger

I'm sorry to hear that. Sounds like it could be a rod knock. Back in the day when I had one it started out as a tapping but quickly progressed to sounding like someone banging on the engine with a hammer. Once it gets to that point, shut the motor down. You don't want the rod to break which could do a lot more damage to your engine. As it is, if you could pull the motor and probably salvage the crank and rod.

Joe

gvincent

Anybody near by with a good ear want to take a listen?
I'm not sure why this happened I never got a chance to drive it yet!
Probably has less than 10 minutes total run time since the swap.
Thanks,
Greg

ttop1986

Try posting on LS1Tech's new england section. It's much more active, and theres people from all over in there.

gvincent

Thanks ttop1986,
I did but no help.
I am figuring the motor is toast, the knock is there and now it is missing badly, I probably have a blown head gasket as well.
I picked up another LT1 from a 1995 Caddy, it is an Iron head but I am going to swap it out so I can at least enjoy driving the car sometime this summer. I will rebuild the other LT1 over the winter.
Pulling this motor and swapping it out is getting tough on my 55 year old body.
I thought I was done and just had some TunerCAT issues to program out and then get a good tune from somebody local.
Well here goes, another swap!
Greg

gvincent

Well, it was too hot to do anything this last weekend, waiting for it to cool down a little.
Here are pics of the motor that was almost done, Now I have to take it out!
Crap! I can't post pictures on this forum..
Look here:http://www.ls1tech.com/forums/showth...=931808&page=2
Greg