Head Gasket 6

[Tioga]

Does anyone know if you need to use a sealer on a new head gasket while rebuilding a 460 Ford motor? If so what is best to use? The engine is a 1986 model and needed new heads because of broken manifold bolts. We need to install the heads with new headers, and the intake. All help is welcomed.

Thanks,
Steve

 

[CNCHP]

to solve a similar "Patprimmer's gasket blow-out" problem on 35-40psi boosted 2.0L turbo'd motors we build, we machine a shallow mating wedge/labyrinth type sealing joint. (maybe one could use the "1948 technology" and O-ring it? BTW, we still O-Ring a lot of Honda & Mitsu blocks). At first I applied a VERY thin film of Hylamar to act as much like a lubricant during assembly, as for a "cold" sealing agent to fill micro machine tool marks. Lately we just spray the joint with WD40 and put it together. On another engine I solved a similar problem by drilling and adding several small 4mm fasteners between the main fasteners. I tapped the lower, 0.187" thick plate to avoid the hassle of placing tiny nuts on the socket head bolts I used. Hope this helps. TN

 

[patprimmer]

I am not blowing head gaskets. We use copper with O ring and receiver grove with no problems.

I am blowing the cardboard type inlet manifold gasket into the valley on a SBC V8. There is no room for extra bolts without a LOT of welding.


Regards
Pat
See FAQ731-376 for tips on use of eng-tips by professional engineers for professional engineers

 

[CNCHP]

Whoa up Pat! I understood it was NOT the head gasket - I understood it was a manifold gaskets, due to high boost pressure - I do not work on Detroit iron - so am not familiar with your specific app limitations - I mentioned a labyrinth type seal that uses no gasket as a likely solution - and only mentioned the extra bolts as an alternative I had used on a different engine. Whether You can use any of these suggestions is beyond my control - I was only offering helpful ideas. Pat, I'm new to this forum - but not new to engineering high performance engines... I certainly didn't mean to cause you to lose your patience... my post was only an attempt to help you - please accept my apology.

 

[patprimmer]

Sorry, I didn't mean to sound impatient. Actually I was conscious that I hijacked this thread (ie I was wrong) to get some advise from Rod & Pat, whose judgements I respect and trust.

I should have started my own thread, but they were here and it followed the topic.

I thought it possible you read the original heading and did not notice I hijacked it about 3/4 of the way down.

This is a professional forum and sometimes the language is businesslike rather than social as we do want to be accurate, precise and concise but we do not want to invest unnecessary time.

I was abrupt with the OP due to the quality of his question.

Regards
Pat
See FAQ731-376 for tips on use of eng-tips by professional engineers for professional engineers

 

[evelrod]

CNCHeadporter:
Geez, fill in your profile and give us something shorter to call you.
From your other posts, you seem to know what your are about (I hate porting...I do it, but I hate it. Each time I swear it will be my last)... welcome to the hijacked thread...I have become so accustomed to these segues that they pass totally unnoticed. ;-)

Pat, go ahead and start a new thread...I'll see it. The subject matter is of concern to me as gaskets are, and have been for over fifty years, a pain in my @ss!

I like the idea of a matching "step or groove" in the manifold surface using only a sealer and NO paper gasket. I hate them things! I like Threebond 1104, but Hylomar, as well as several other RTV's should work. I have just had good experience with the Threebond.

Rod

 

[patprimmer]

No need Rod. I think I have all the answer on this that is there to get. I think the OP is long gone and the thread evolved or went off topic because the OP was way to vague.

I still think he was a home handyman who wanted us to give him info that is in the instructions that come with the part if he actually bothered to read such things. I just noticed his post saying he did not like my attitude is gone. I thought he made a good call on that and I would not have flagged it. I was being abrupt to him as I thought that was all his OP was worth.

CNC

Rod is right

You know your stuff and I think you will like it here.

As I think you will stick around, it would be easier and more personal if we had a reasonable name to address you by.

Regards
Pat
See FAQ731-376 for tips on use of eng-tips by professional engineers for professional engineers

 

[CNCHP]

Thanks for the input guys- I'm a little new to this forum thing - spend most of my time in the shop making shavings. I'll fill in the profile and try to get a shorter "handle" ...and just lurk a while. There seems to be a high degree of talent here - and I respect that! Cheers!