For someone based in Europe, Seager would be my first choice. Complete with their stainless steel rose nuts!Personally I would not go that route. The head will need to be machined anyway, so threaded inserts are the way to go in my opinion. Seager engineering in the U.K. would be my second choice after Jim, but somebody else on here might know of another good engineering shop in the U.S.
Never had a problem with them. The only issue with them was a cosmetic one. They no longer looked original.I agree Ken. I can envision that press fit sleeve sliding out right when you least expect it. If using a press fit aluminium sleeve I would at least add a few small tack welds around the perimeter.
Did your welded in sleeves hold up?
Glen
He did my '74 850 two years ago. Doing fine after about 6500 miles riding since. These are similar/same alloy as used by Mr. Comstock I believe. Ran me about $400 Cdn for the pair and done within 10 days.There's Dan Poitras in Ottawa Ontario listed in Facebook marketplace doing threaded bronze replacements. Don't know if this link works or not. Facebook funny sometimes -
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The issue is that if the repair fails, then when you need the bronze insert the installer has twice the work to do, at your cost.If I have to use them I was considering a weld as well. The insert has a lip at the top that perhaps if I milled the head out a bit wider where the lip goes it will give me an area to run a bead of weld. My biggest concerne is the fact that it's aluminum rather than something less prone to stripped threads.
I think this is the same guy that did mine.There's Dan Poitras in Ottawa Ontario listed in Facebook marketplace doing threaded bronze replacements. Don't know if this link works or not. Facebook funny sometimes -
https://www.facebook [QUOTE="Dan195...OTE] .com/marketplace/item/1053297956029666/
Thanks for the kind wordsHe did my '74 850 two years ago. Doing fine after about 6500 miles riding since. These are similar/same alloy as used by Mr. Comstock I believe. Ran me about $400 Cdn for the pair and done within 10 days.
I had the chance to visit his place a year ago while in the region. He's a one man band, does this stuff & other machining work as a passion and not his main source of income.
Website with contact detail:
Thank YouI think this is the same guy that did mine.