Tdc?

[godsend1]

I'm trying to get the valves adjusted. When following the manual, on #1 cylinder I have the flywheel mark ligned up, the small hole on the camshaft lined up, but the lobes are pointed down. I'm pretty sure this is wrong.

:bang head:

 

[maleko89]

Tom, don't use the flywheel marks. Just make sure lobes of both cams are like this: \ /

Or, stick a screwdriver down plug hole to set piston at TDC.

 

[godsend1]

Mark,

IS that the intake and exhaust? and does that lobe position indicate tdc of compression?


Thanks Tom

 

[maleko89]

Yeah, the intakes and exhaust for that the cylinder you're checking. That position is pretty close to TDC of compression. To get exact it's easiest to use screwdriver method.

 

[godsend1]

Thanks Mark.

Maybe a dumb question, I can check both intake and exhaust in this postion correct?

 

[maleko89]

Correct. You will only be able to remove two shims at a time though using the J tool. Either intake or exhaust.

 

[godsend1]

Can I take all of the shims out at once, or will turning the crank damage the buckets ?

 

[one2dmax]

it will gouge the cams without the shims in place. Do only one pair at a time. It won't take too long but still sucks. Just do one cam at a time.

Sean

 

[godsend1]

Thanks Sean.

That's what I thought. I'm half way through the gapping and shim checking and was hoping I could save some time.

 

[COP RUNNER]

i was taught this when i was 16 years old & still use it today on stock - modified-drag car-stock car & all of mine & my friends motorcycle engines , & i'm a 45 year old mechanic & have used this over a thousand times ! No matter how many cylinders you have , do each one individually as if they are all one cylinder engines ! It doesn't matter witch cylinder or valve you start with , or witch stroke its on ! Example ; take all spark plugs out & put a breaker bar with a socket on the crankshaft bolt , start with cylinder #1 , turn engine slowly until one set of the valves on cylinder # 1 starts opening , continue until the valves are all the way open ( down all the way ) , just at the instant the open valves start to close ( lets say they are the exhaust valves ) the intake valves are all the way closed at this time so you can check them ( the intake valves ) & change the shims as needed , after the intake valves are done , watch those valves ( witch would be the intake valves for cylinder #1 ) and when those intake valves are now all the way opened ( down ) & just start to close , the exhaust valves can now be done the same way ! Do one cylinder at a time , like its four one cylinder engines , this is the safest way ! Also always turn the engine in the rotation direction it spins while its running ! unk: