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valve cover leaking

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hc243102

valve cover leaking

I cant seem to find a valve cover gasket for my 78 cb750k. Would it be alright if I used something like Honda-Bond to seal this??

Piute

Re: valve cover leaking

http://www.vintagecb750.com/products/4/engine

Cam Cover Gasket
Add to Cart
Cam Cover Gasket - OEM Ref. # 12391-300-400

Fits: All SOHC CB750's (1969-78)
Part #: 18-7003

1977 CB750 F2 Super Sport
<LET THOSE WHO RIDE DECIDE><RIDE TO LIVE-LIVE FOR JESUS>
Native American from central Cal, Kickstand UP in S.W.Missouri,

TOOLS1

Re: valve cover leaking

Administrator

In reply to this post by hc243102

I have never tried it on one, but I do not know why it would not work.
TOOLS

Life is not about the number of breaths, you take, but the moments that take your breath away.
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I just can't imagine what could go wrong.
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It couldn't be done, but the darn fool didn't know it, and did it anyway.
We all got problems. Ksharp
I like vintage bikes because they take me away from the clutter of technology that I work with everyday and back to a simpler time of mechanical elegance and simplicity.. "ninadm"
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1976 CB 750-A X 2
1977 CB 750-A X 4
1977 CB 750-K
1976 CB 750 F
1981 CB 750
1966 Kawasaki SG 250
1981 KZ 750 LTD
1973 CB 350
1979 CM 185 Twinstar
1982 Honda XL 80
South of Eden (Kansas City MO)

Re-run

Re: valve cover leaking

Administrator

Tell you the truth, if I found rubber that handled the heat, I would make a valve cover out of that I think.

The ride IS the adventure. The destination is just to get gas!

MRieck

Re: valve cover leaking

In reply to this post by Piute

I have used this gasket from CycleX http://www.cyclexchange.net/CoolPix%20Honda%20Gaskets%20Roxi%20007.jpg Part# ENG-008 It costs 39.00 BUT it is steel with a foam type coating on both sides. It does a good job of compensating for nicks and scratches on the head and cover sealing surfaces. Same type of gasket that Harley uses.

hc243102

Re: valve cover leaking

Think Ima go with the one from vintage750, don't wanna chance it with the liquid gasket. Thanx fellas

hc243102

Re: valve cover leaking

Honda bond says its only good up to 300 degrees, not sure it that would cut it.

dave Esch

Re: valve cover leaking

In reply to this post by hc243102

DO NOT use HondaBond to seal the valve cover. It is pointless. They make gaskets for this surface.

sgtslag

Re: valve cover leaking

In reply to this post by hc243102

Some folks have posted, either on this forum, or another, that the head of their CB750 (CB900?) clocked in at, or above, 300 F, using an IR Thermometer! This was when their bike was at operating temperature. Meanwhile, the oil, in the pan, was at 250 F. I agree, use a gasket -- they are still made, so why risk it? Cheers!

1979 CB750K (sold, 2012, but not forgotten)
1983 Kawasaki 440 LTD Belt Drive (sold, 2011)
1993 Kawasaki Voyager XII