Need Urgent Help!!!

I'm in the process of rebuilding the top half of my 1982 Seca 550. I've just put the head back on a toequed all the bolts, which by the way 14.5 ft/lbs just doesnt seen enough. Anyways I'm puting the cams in with the sprockets atttached fingure tight as I go to lay them in the bearing cradle the timing chain is to tight and will not let them both sit right. Whats the deal? The tensioner isnt even screwed in yet so the should be quite a bit of slack in the chain. My brothers help me out I am so close!

Also, I've changed cam sprockets from another doner. If I line the dots up with the arrows and the timing plate is a "T", it will be good the go or can I get it out of timing by 180 degrees...depending which way I rotate the sprockets onto the cams when I bolt them to the cams?

 

Maybe the cam chain has bunched up at the crank? Try to turn the crank a few degrees either way to see if it loosens (best to take the cams out first).

 

If you line up the dots & the T you can't be wrong.
You sure the cam chain isn't caught up at the bottom?

 

The front chain guide was not removed and it was pushing the chain into the lower sprocket real tight, but there wasnt a whole lot of room to play with between the case and cam.

Theres got to be a better way to do this than the way I did! That would drive anyone to just take it to a mechanic rather than do it at home.

To day I'm torqueing the cam caps and doing valve measurements. But just as a little jab to me ego (or whats left) I was clearing and organizing all the extra parts I have from the doner engine when I found an extra upper chain guide or what I thought was an extra...so looks like I also have to undo some stuff and tuck the chain guide back in.

Another topic...valve clearance measurents, do that have to be done with the special tool attached or is there another way?

 

It happens once in a while to us all. That "oh $hit" moment. :roll:

 

Tool is to remove shims. It'll mess up the measurement if it's in. All you need is a set of feeler gauges.

If you're pulling the cam chain back off do them before you put it back on (cams torqued down). Much easier than turning the whole engine to take measurements.

 

Thanks guys.

I thought I would just unscrew one of the sprokets to give me enough slack to insert the upper chain guide and than just c\screw it back in without moveing the cam or alignment with the dot and arrows.

Since Ive replaced and moved around everything I'm just settling in that I will have to change shims. I've already been readin about using a plasic tie to hold the valve bucket down to pull a shim a lot more finacially acceptable than shelling out $73 for the real thing. I believe in using the right tool for the job...unless it cost to much.

 

Valve Clearance Measurements are:

E1- 0.178 ; E2- 0.152 ; E3- 0.127 ; E4- 0.152

I1- 0.127 ; I2- 0.535 ; I3- 0.483 ; I4- 0.711

Wow!! Measured twice.