zlathim

I am hoping to get some insight on this HG failure. I am by no means an expert on these engines, but I know there are a few here that know them very well.

Is this a common point of failure? It looks like the fire ring on the gasket is pushed inward toward the cylinder. You are looking at cylinder #1. There is a coolant port in the head right there, but no corresponding hole in the block.



How did this happen? Is it a common failure? Is it a warning sign I should be investgating?

JDMSLIK

ya mine did the exact same thing. Some people'll say replace the piston i it's been gouged. I took a small fie and rounded out the tiny dent the gasket put in the piston. If the piston has a gouge and the edge is real skinny or pointy, there's a possibility it'll pre-ignite before combustion.

zlathim

Cool, thanks for the advice.

Blurr

my bad HG looked similar and it gouged my piston too. most folks around here didn't think it was that big of a deal. so far, about 15 months and 10k miles later, she's still running strong!

zlathim

Thanks again guys. The engine is all reassembled and running fine. I appreciat e the feedback.

mmcpeck

Had the dealer do the HG recall on my '91 Runner,3VZE, and they decided it needed new complete heads, but didn't do anything to the block. I have a bad oil comsumption problem, I wonder if the piston was gouged and they didn't do anything about it. Would that cause it to burn any oil?

On my '88 Pickup, I blew the whole block, cracked it, when the HG's failed, they gave me a whole new short block on thta one.