Engine case chips

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wade.edwards
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Engine case chips

Postby wade.edwards » Tue Dec 31, 2019 5:41 am

How would you asses the chips in this pair of cases for potential leaks, let alone the aesthetics? The ones in the cam chamber looks troublesome. The timing side should be OK because it is mostly used for alignment and there is still opportunity for sealing on the flats, right? Anyone bothered to try to fix similar divots?
Wade
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JohnnyBeckett
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Re: Engine case chips

Postby JohnnyBeckett » Tue Dec 31, 2019 5:05 pm

HI Wade if the faces are a good fit and flat i would use wellseal on both faces and let it dry off a bit before you put it together i have used wellseal on cosworth dry sump oil pump faces no gaskets and it runs up to 150 psi with oil and never any oil leaks :!:

wade.edwards
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Re: Engine case chips

Postby wade.edwards » Tue Dec 31, 2019 7:46 pm

I’ll keep that in mind, Johnny. I’ve had to import a tube of WELLSEAL because we don’t seem to have it in North America even though it comes highly recommended.
Still considering weld build up with a little machining. Need to save these cases because the are for a W/NG with the same army contract number as my frame.

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Re: Engine case chips

Postby Ian.Taylor » Tue Dec 31, 2019 8:20 pm

Wade I use 3 Bond used for sealing 2 stroke cases.

Any Motorcycle dealer in Canada should carry it or order it.

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Re: Engine case chips

Postby JohnnyBeckett » Tue Dec 31, 2019 8:49 pm

HI Wade if you are good with a tig welder you can put thick copper strips around the lips of the case and you can build the lips up and keep the shape of the lip wen you have built the weld up remove the copper and you will have less machining to do and less distortion :!:

wade.edwards
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Re: Engine case chips

Postby wade.edwards » Wed Jan 01, 2020 5:07 am

Yes, Johnny, that is the solution. I was leaning towards creating a weld dam from the inside. A well fitted, tightly wedged, 1/8 thick copper disc will fit the bill. First things first, will get a disc lasered. Thanks for tipping me over the edge. HNY.
Wade
Last edited by wade.edwards on Wed Jan 01, 2020 5:10 am, edited 1 time in total.

wade.edwards
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Re: Engine case chips

Postby wade.edwards » Wed Jan 01, 2020 5:09 am

Thanks for the 3 Bond tip, Ian. Will consider it for other future projects. Cheers.
Wade

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Re: Engine case chips

Postby JohnnyBeckett » Wed Jan 01, 2020 12:45 pm

HI Wade keep us posted how you are getting on with the welding you are on the track now wen you make copper strips and build the up welds slowly good luck and happy new year :)

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Re: Engine case chips

Postby paul.jameson » Wed Jan 01, 2020 9:12 pm

I have built singles engines with similar damage using gaskets with blue hylomar on both sides with success in the past. I have also had cases leak where someone has welded them and they have distorted slightly as a result.
Paul Jameson
36 4G, 37 VH, 54 KH(A), 75 Healey 1000/4, 52/53 ex ISDT KHA (project).
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