Huston, we have a problem...!!!!

[Red63440]

Some timing chains have multiple sets of 'dots'. Double check to be sure there is only one set. I have seen a set that had circles and triangles for different centerlines... just a thought.

I thought of that too but there are only one set of dots, then triangles and I think a square. I spoke with Cranky at length and the marks may be off, things are opening and closing when they aren't supposed to. I will find out for sure once I get the puller and get the dampener off.

 

[wannadrag]

I've also seen guys that line the lower dot up with the little cirlce with the brand of the gear cast in it.

 

[Cranky]

I thought of that too but there are only one set of dots, then triangles and I think a square. I spoke with Cranky at length and the marks may be off, things are opening and closing when they aren't supposed to. I will find out for sure once I get the puller and get the dampener off.

I didn't snap on the Cloyes sprocket but the dot or zero is straight up, the square is two degrees retarded, and the triangle is two degrees advanced but like we talked about, I think you have much more of an issue than that based on when you said when the valves are opening and closing according to the timing mark on the balancer.

 

[Homstead]

Not sure if you checked for coil bind or interference at the top of the valve guide and the retainer? Was it machined for positive seals? Sometimes they take up more space. Something to look at before you pull it all apart anyway.

 

[Red63440]

No coil bind, valves move fine, just not when there are supposted to...

 

[67 B-body]

if you want, you could remove the intake and place a straight edge across the top of the lifters on #1 cyl with piston @ TDC. The lifters should be at the same height...... Just a cheap easy way of checking things without a degree wheel.

 

[Red63440]

I am going to wait and see what I find when I remove the cover then I will go from there.

 

[Meep-Meep]

Anybody else here remember a time when .540" was considered a lot of lift?
Then again, I remember when 13 second cars were considered fast...such a geezer.
I think Brian's right, borrow or buy a degree wheel.

Yep, it is a lot of lift - for a stock head. I'm currently running .455" lift in my 440 and it runs high 12's.

Maybe we need to have stickers that say: "Hey, it seems fast to us".

 

[Red63440]

The mystery is solved......There are 3 key ways in the timing set I have, one key has a triangular top, one has a rounded top and one has a square top. The o marks were dead on so I knew that I was ok there. Then I checked the key ways and found that the "Factory" key way is the rounded top, NOT the square top. If you bring up Cloyes web site you will see that the rounded top key way is just about 170 degrees out from the square topped key way when you use the o as the alignment marks. I changed the gear to the rounded top and reassembled the rocker arms and spun it around...NO problems and the valves now move like they are suppose to. Thank you to all....all I am out now is a new timing chain gasket.

 

[67 B-body]

Wonderful!!!!!!

 

[shorty64]

...and thanks for sharing the outcome.

words to the wise are always appreciated, experience counts, water is wet, ..

 

[70Hemi]

possible idea
if you swapped heads on a running motor and are trying to roll it by hand I have seen were the lifters are pumped to take up clearance up for the old heads and do not release enough for the new setup. try figuring out the ones that are hitting and pull the lifter on that one and see if its oil locked

 

[MoparBill]

Glad it was nothing major!

 

[Big Jim]

Glad to hear you found the help you needed, and didn't have to spend a lot of money!