Seized cam fix?

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Seized cam fix?

Postby Anders » Sun Jun 28, 2009 11:37 am

I recently came across a box of used engine goodies for my Skorpion. In the box, amongst other things, there was also a very nice ported head wich unfortunatley suffrered a light seizure, the cam bearing surface is a little scratched and so is the races in the head.

The cam itself can be sorted pretty easy, and if not I have 2-3 stock 660 cams that can be reground if necessary. But how to fix the head? Does anyone have advice on, or experience in, how to do this the best way, installing bronze races perhaps or... any input is appreciated.

The reson for saving the head is that it is a pretty special piece of work, it has been welded and reworked to give 11,5:1 compression using a stock piston, ported and flowed by one of the most legendary tuning magician in Sweden "Grottis" who unfortunatley passed away a few years ago.
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Re: Seized cam fix?

Postby rodge70 » Sun Jun 28, 2009 2:27 pm

many,many moons ago i had a honda xl250 that the camshaft had seized quite badly on and i remember when the head and cam came back from the engineers it had a needle bearing on the end and bronze,i think,split shell in the middle and problem sorted,we are talking 30 odd years ago now so i would imagine newer techniques are around,cneers
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Re: Seized cam fix?

Postby djsbriscoe » Sun Jun 28, 2009 3:27 pm

Hi,
Get a subscription to Old Bike mart

http://www.oldbikemart.co.uk/

This magazine has an extensive classified section which advertises many specialist services including cylinder head work.

I've used one or two companies in the past.

This company may be able to help

http://www.cylinderheadshop.co.uk/

HTH.

David.
Bikes:2006 RT125 (sold Jan 2013),2001 Skorpion Traveller (sadly sold) Current bike Honda NC750X DCT (2014)
Past owner of original ETZ125,ETZ251,Kanuni ETZ251 models
Location:London UK
Electronics tech by trade.
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