Thomas, The timing marks on the cam chain are only used for lining up the chain when you have the timing cover off eg total strip down or fitting a new chain. I presume you intend to chock the t/c adjuster so the main thing is to have the engine a TDC compression #1 which the cam lobes on #1 will be both pointing up (actually about 10 & 2 o'clock). Note which position the cam dowel is located in the timing wheel (i.e. 1, 2 or 3). With an indelible pen or sharp object, mark the link that is opposite the corresponding link marker (dimple, also numbered 1, 2 or 3) on the outer side of the wheel. It's also a good idea to check the chain for stretch and also the condition of the adjuster boot and guides while you're at it. With the engine at TDC you check to see that the V notch on the wheel lines up with the marker on the thrust plate, your Gregory's shows you how this is done. If the V on the wheel is to the right of the notch on the thrust plate (cam timing retarded) then you should put the timing wheel back on the cam dowel at one number higher than what it come out and turn the engine 720 degrees by hand and check it again (important on any OHC engine) - except if course if it's already on #3, then you're up for a new chain. It sounds like you've not done this before, everything else is fairly straight forward but pay particular attention to the method of adjusting the valve clearances. The correct method on a L engine is one valve at a time with the lobe pointing straight up and you measure between the cam and the heel of the lobe. You can adjust the clearances between the lash pad and the valve but the specification is not what's quoted in the manuals i.e. 8 in & 10 ex cold. Rotate the engine until the next lobe is pointing up adjust clearance and so on. regards Terry -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Thomas Sent: Sunday, 22 July 2001 7:23 PM To: [EMAIL PROTECTED] Subject: Cylinder head removal L18 and timing chain position marks My brothers dato has blown a head gasket(leaking radiator) and we are in the process of pulling off the cly head . We have got up to taking off the timing chain and cam sprocket but cant find the marks on the timing chain where they are supposed to lineup. The Gregorys manual refers to the letter O on the side of the chain but we cant see it, there are just arrow marks on the side of the chain and an X where the chain link is. Can someone give advice on which position to leave the chain and cam sprocket, and any tips on taking the cly head off and anything else I should look for. Thank's Thomas --membersozdat------------------------------------------------------- OZDAT Mailing List Please Note:- Send (un)subscribe requests to [EMAIL PROTECTED] Send submissions to [EMAIL PROTECTED] No unauthorised redistribution of this email http://www.ozdat.com/ozdatonline/index.htm http://www.ozdat.com/ozdatonline/listindex.html http://www.mail-archive.com/[email protected]/ ---------------------------------------------------------------------
