Interesting head gasket find, help!
Thread Starter
|
Senior User
Joined: Sep 2004
Posts: 268
Likes: 0
Interesting head gasket find, help!
I am helping a friend with headgaskets on his "reman" 6.9. We found the coolant leak. In the #1 cylinder. Anyways, this thing has been punched .020 by what the pistons say, and is suppose to have very low miles on the reman as show on his paper work of the engine install(before he purchased it). Anyways both sides, about 2-3 cylinders on each side. The fire ring has been almost "crimped" into the cylinder, and only a small portion of it was even on the block, the rest seems to be sitting inside the cylinder.
The portion of the gasket blown, the exhaust valave actually made slight contact with the fire ring, and pulled it away from the cylinder enough to allow compression to release.
Has anyone seen this? I have never seen anything like this. 2 of the fire rings have actually cracked.
Any help is appreciated. Thanks
The portion of the gasket blown, the exhaust valave actually made slight contact with the fire ring, and pulled it away from the cylinder enough to allow compression to release.
Has anyone seen this? I have never seen anything like this. 2 of the fire rings have actually cracked.
Any help is appreciated. Thanks
Post Fiend
Joined: Nov 2003
Posts: 21,285
Likes: 16
From: Nutter Fort, WV
Sounds like some cheap gaskets were used.
I have never seen the fire ring smaller than the bore.
Get some good headgaskets to replace what you have, also make sure the block and head are oil free before you install them. I wiped mine down with acetone right before I dropped the gasket on.
I have never seen the fire ring smaller than the bore.
Get some good headgaskets to replace what you have, also make sure the block and head are oil free before you install them. I wiped mine down with acetone right before I dropped the gasket on.
Freshman User
Joined: Sep 2006
Posts: 43
Likes: 0
If you can get ahold of 93 to 94.5 head gaskets they are more expensive but the multi layer design is much stronger and built for a turboed engine with more compression. Problem is not ever parts person is smart enough to find them. I finally crossed them with ford part number.
Thread Starter
|
Senior User
Joined: Sep 2004
Posts: 268
Likes: 0
Its actually just the fire ring itself that is cracked. Its like when they torqued the gasket it pushed some of it into the cylinder. We were talking after that and it came up, I wondered what other QUALITY parts they used in the engine.
