Manfred's TR1. Discussion Boards
https://www.tr1.de/cgi-bin/yabb2/YaBB.pl TR1 Discussion Boards >> Help me! I'm lost with my TR1! >> camshaft timing https://www.tr1.de/cgi-bin/yabb2/YaBB.pl?num=1206417520 Message started by kerosene_cowboy on 25.03.08 at 04:58:40 |
Title: camshaft timing Post by kerosene_cowboy on 25.03.08 at 04:58:40
Hi there, welcome from Perth Western Australia and thanks for the great site. Hey I have had the top end off the xv1000 1982 model to give her a cylinder hone rings ang some head work. How do I check the camshaft is in the right position (in relation to TDC) when putting the cam sprocket and chain back on. Do i just go off the Haynes manual and align the dimple in the sprocket and dowel with the cast pointer on the cylinder head. I dont want to bend any valvles! I have made sure the crankshaft timing mark was at TDC. :-/ |
Title: Re: camshaft timing Post by crazy cow on 27.03.08 at 01:41:39
hi there down under, when I reassembled my engine, I put first the rear camshaft in the right position and mounted the chain. Then the same procedure with the front camshaft and chain. After mounting the chain stretchers I turned the crankshaft 360 deg. backwards and checked twice. After that I had to readjust the sprocket of the front cylinder. (1 cog) I think the (dismounted) chain stretchers cause a small measuremnet error. Remark that the camshafts are turning forward, while the crankshaft ist turning backwards. Good luck, Olaf |
Title: Re: camshaft timing Post by kerosene_cowboy on 27.03.08 at 02:29:03
Hi Olaf, thanks for the sugestion. I am still not sure if the camshaft is in the correct cam position before locating the cam chain. The valves are both closed and the camshaft dowel is pointing at the cast pointer on the top of the head; so I think it is good to go. Cheers Ian :-[ |
Title: Re: camshaft timing Post by crazy cow on 27.03.08 at 21:37:34
hello Ian, there are timing marks above the dowel both on the camshaft and the sprocket. ![]() ![]() Cheers, Olaf |
Title: Re: camshaft timing Post by kerosene_cowboy on 28.03.08 at 11:17:11
Hey Guy's, thanks for the helpful information. The picture confirms what I thought, and the Haynes manual. Both valves closed, piston TDC, cam dowel at crankcase marker. Cool! Guess what I'm doing on Sunday.......putting the bike back together. Thanks crazy cow :) |