Jim,
In addition to a silicone gasket (I just coat a stock cork one WITH
silicone instead) to stem any leaks from the bottom you may want to
try using these seals for the valve cover bolts and then you may not
be so tempted to try and stop valve cover leaks (top or bottom) by
overtightening them beyond the feather fart of torque that is required.
The seals are a Honda part, that originally went to what I can't
recall maybe a motorcycle, but they fit beautifully on a TR6 valve
cover and have stopped the oil leak I used to have from those three
bolts. After trying them I fell in love and I went and bought three
more (which is why I have the exact part number in hand) because I
didn't want to chance never finding them again.
The seal is Honda part number 90541-371-000 and was suggested to me by
someone on this list...thank you Listerati. I expect my usual cut
from Honda...nothing.
Bud Rolofson
71TR6 CC57365 (Good 6)
66TR4A CTC57806 (The Wreck-Almost parts)
66TR4A CTC57529 (The Project)
71F-250 Camper Special (Triumph Support Vehicle)
Z-50A Hardly Davidson 1977 Honda Mini-Trail Bike (Triumph Pit Bike)
levilevi@comcast.net
On Feb 6, 2012, at 6:05 PM, Jim Henningsen wrote:
> It turns out my mystery knocking noise from the engine was caused by
> me over
> tightening my stock valve cover enough so that the rocker arm was
> hitting
> the underside of the cover. Thanks to a tip from a club member, I
> loosened
> the cover and the noise went away. I forgot to mention that I have a
> high
> lift cam, so that combined with my tightening tip caused the issue.
> Glad
> this one is solved.
> Jim Henningsen
>
> -----Original Message-----
> From: triumphs-bounces@autox.team.net
> [mailto:triumphs-bounces@autox.team.net] On Behalf Of Jim Henningsen
> Sent: Sunday, February 05, 2012 5:35 PM
> To: triumphs@autox.team.net
> Subject: [TR] Engine Knocking Noise
>
> List:
>
> I have also developed a knocking noise, but in the engine. I just
> noticed
> it this morning at idle after checking the plugs. It is a knock
> that I can
> hear and feel when holding the valve cover and sounds internal. It
> occurs at
> idle and at other rpms. I first thought it was missing due to a
> weak spark
> plug connection, but confirmed that it is not missing. I'm stumped
> and
> curious where to start trouble shooting. I am not going to drive
> until I
> figure out what is going on. Any help would be greatly appreciated.
>
> Many thanks,
>
> Jim Henningsen
>
> Ocala, FL
>
> 75 TR6
>
> 62 TR4
>
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