March 26, 201610 yr Mates 290 is rattling like a gooden, got a mate whos a decent mechanic who is going to help me do the rebuild What costs are we looking at for a full rebuild? not sure if its top end or bottom end? Probs end up doing it all
March 27, 201610 yr Most do not need a conrod kit, which leaves main bearings and a top job with a few gaskets and seals.
March 27, 201610 yr Author http://www.ebay.co.uk/itm/SHERCO-250-290-ENGINE-REBUILD-KIT-1-/121924423550?hash=item1c63430f7e:m:mxAaebiEwDvtQkNj0x--11Q So it should be all of that plus the little end bearing
March 27, 201610 yr Other place you can get a rattle is the clutch basket, the rubber dampers between the gear & basket shrink & go hard over time. Splatshop has a blog on their site on renewing them, total cost is 0.85pounds x8 for the rivets, 1.19pounds x8 for the rubber pieces. I replaced the basket at the same time when I did mine as it's amazingly cheap at 24.71pounds When you do the bottom end you can get the later main bearings which run seals & also get the Viton crankseals which last longer with any fuel that has ethanol in it. If a later part is a direct replacement it automatically supercedes the previous part which means anything you order should be the latest generation/upgrade
March 27, 201610 yr Author http://pages.ebay.com/link/?nav=item.view&alt=web&id=141742613392&globalID=EBAY-GB So if we bought this for the bottom end and the seals ect what else would we need for the top end rebuild?
March 28, 201610 yr Probably piston kit if the barrel is ok. You don't need to remove the head when you rebuild it so some of those O-rings won't be needed unless you have to replate the barrel
March 28, 201610 yr Author Ordered that full kit, plus little end bearing, clutch tool and fly wheel puller Will check piston and barrel when they are out see how they are
March 28, 201610 yr Probably piston kit if the barrel is ok. You don't need to remove the head when you rebuild it so some of those O-rings won't be needed unless you have to replate the barrel How can you clean and inspect cylinder and head properly if you dont remove the head
March 29, 201610 yr Everything can be done from the bottom of the cylinder, if a decent oil has been used there won't be any build up on the head
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