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Damper installation depth?!

///Matt

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help a brother out, guys.

Misaligned belts on my 440. Damper/crank pulley seems too far out. Inspect damper, find about an 1/8” (just about exactly the alignment concern amount) of space before the damper is flush to the crank. (See image)

Try to push it down with damper tool, snapped the tool. Remove the damper, it comes right off without trouble.

HOW flush should the damper be to the crank, assuming correct “bulletnose” damper on suposedly a cast crank? (‘77 440)

6F93F84F-FA0B-44E0-981A-9DC6FC66BCD2.jpeg
 
HOW flush should the damper be to the crank,

I don't have specific knowledge in that so I can't say.

If you have a machinists ruler (little short one about 6 inches and flat) try sliding it in until the end hits the step for the cam drive sprocket and measure to the end of the crank snout.

Measure the inside if the balancer.

Or have you tried that already.
 
The balancer does not sit flat to the end of the crank snout. There is a small difference, 1/8 seems about right. The balancer stops on the bottom timing gear and oil slinger which is up against the crank.
 
The damper goes on until it bottoms out on the crank shaft. You should have the oil slinger in place which will space the damper out a small amount. If your pulley alignment is off 1/8 of an inch then you have a different problem. Perhaps you have the wrong damper or the wrong pulley.
 
The damper goes on until it bottoms out on the crank shaft. You should have the oil slinger in place which will space the damper out a small amount. If your pulley alignment is off 1/8 of an inch then you have a different problem. Perhaps you have the wrong damper or the wrong pulley.

Could easily be the wrong damper... or the wrong water pump. But I got brand new crank and WP pulleys from BPE, and no combination of old or new pulleys settles the alignment. The crank pulley (old or new) does line up well enough with the AC/Alt
 
Pull the damper off and check for burrs, etc. Is the bottom timing gear installed correctly? As stated, the damper should bottom out on the oil slinger. Also check the crank key is flat in the slot and sits low enough for the damper to go over it. If its to tall in the slot it could be cocked and also be hanging up the damper from going all the way on.
 
hey matt I saw you had a 4 door 69 a while back you was parting out.do you still have it.im looking for a deck lid.thanks
 
He needs to find out if it's bottoming.!!!!
 
Heck, you could use a dial caliper but a 6" scale would do the job. Yeah, don't think a depth mic would be needed in this case but it would sure tell you to the .001" easily enough. Just kinda of a dirty environment for it.
 
Thanks all. Now that the thing is off, I’ve got to decide whether I want to sleeve it or replace it, and decide whether I want to do the timing cover seals...... which I’m certain will lead me to deciding to replace other stuff, so I’m trying to avoid.
 
True Cranky, a depth mic is not absolutely necessary. The point is we're having an interference issue maybe we should get a measurement with some degree of accuracy.

. Just kinda of a dirty environment for it.
They are pretty darn tough. It's comes down to how one takes care of the mic. I've had mine since early 80's. Mainly used it in a powder metal (iron, graphite, copper, acrawax, molybdenum powders) and die wall lubricants environment almost daily. Still working just fine, the soft case went to hell though...……..
upload_2019-1-23_9-33-52.png
 
help a brother out, guys.

Misaligned belts on my 440. Damper/crank pulley seems too far out. Inspect damper, find about an 1/8” (just about exactly the alignment concern amount) of space before the damper is flush to the crank. (See image)

Try to push it down with damper tool, snapped the tool. Remove the damper, it comes right off without trouble.

HOW flush should the damper be to the crank, assuming correct “bulletnose” damper on suposedly a cast crank? (‘77 440)

View attachment 708429

Remove the timing cover and install the damper. That will tell you if it is going on all the way. Proceed from there. It isn't complicated, just some mechanical parts that need to be put together.
 
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