Cam Chain Tensioner forward blade

[Scudder]

I am in the process of putting the cylinder head back on my 1978 GS750. I can't seem to get the "Cam Chain Tensioner Forward Blade" to fit the way it should. I messed with it, but can't figure it out. The engine is still on the frame. I was advised to leave it in sense I just needed to remove the cylinder head, to do the needed repairs. But now I'm having trouble with the tensioner blade reinstallation. Any suggestions are appreciated.

Scudder

 

[mike_of_bbg]

Would you be talking about the push rod?

It would have to be aligned with the flat beveled inner end of the rod facing toward the knob; I think there should be a slightly flat lengthwise ridge which would then face the lock screw/nut on the other side. You'll have to turn the knob counter-clockwise to push the rod in, then snug down the lock screw. Make sure the lock screw is backed out for re-assembly. You should only have to snug it down to hold the rod in place until the cams and chain are in place.

If the rod has come completely out, you'll want to remove the knob after re-assembly and put 1-1/2 to 2 turns of tension counter-clockwise on the outer spring (the spring should be trying to turn the knob clockwise).

 

[Nessism]

That blade should tuck into a notch in the crankcase on the bottom and the little tee nubs on the top tuck into matching notches in the head. Maybe you have the blade up side down so it won't fit properly?

 

[Guest]

The chain may be blocking it. Turn the motor backwards and it pulls the cam chain guide right in.

 

[Big T]

Chef's right

If it goes most of the way in, but stops about 1/2" out, the cam chain is in the way down in the crankcase. Pull up on the chain, rotate the crank about 45 degrees each way and you should be able to slide the guide in

 

[Dalisword]

I may be able to help!

I may be able to help!

Hi, I didnt check the date of your post (I'm notoriously bad at that...) I recently put new seals in my GS1000 and forgot to put it in. I have found the only way I can get it in is by pulling the cams and reinserting it sideways until it is most of the way in then turning it. (A quick note, it may be done without pulling the cams but since I left the engine on the bike I didnt have clearance from the frame.)