I did a search but have a hard time getting that to work. I hate to start a new thread every time I have a question but thats all I have been able to use. So I give up, what is the trick to timing marks on Y Block Dampners? Are they all the same or different depending on dampner. I marked mine before I removed it, but I broke it cleaning the threads with a bolt. I went to tight and heard it snap and some penetrating oil ozzed out on the back side. Got that sick feeling. So, I have extras but, no timing mark. The old one was almost in line with the key slot on the crankshaft, but again, only mark is the one I made in line with the indicator before I removed it. The donar is identical, including no apparent timing marks.

Darrell Howard Whitefish, MT Outlaw 56 Ford F-100's

See if this pair of past threads helps.

http://forums.y-blocksforever.com/FindPost9062.aspx

http://forums.y-blocksforever.com/FindPost63763.aspx

Lorena, Texas (South of Waco)

Ted,

The first thread shows three mounting holes on the super dampner, mine only has two. But it looks like that does not matter in the process. I just go straight out from the key slot and then to the right 108 degrees. I made a scratch on the dampner I removed. If you go out in a straight line, the mark is almost right there. I assume that one had slipped at some point in time. Once they slip are they prone to become problematic? Is there a source who rebuilds dampners or am I better off just getting a new one? The second thread will work if all else fails. Thanks for your help.

Darrell Howard Whitefish, MT Outlaw 56 Ford F-100's

Thanks to Teds post, I located the TDC. On the dampener I broke, TCD was almost straight across from the key slot, actually just a little to the left. On the replacement dampner, it was in the 108 degree area based on the diagram Ted provided. I assume this means the stock dampener I removed had slipped. The replacement appears not to have slipped. Hope this photo helps someone else find thier TDC markings!  I am going to paint it up, where should I put a white paint mark for fast reference?

Darrell Howard Whitefish, MT Outlaw 56 Ford F-100's

I recently had a problem with adjusting the valves and timing on my '57 312.  Finally determined the outer ring on the dampener had slipped.  I sent it to Damper Dudes in CA for repair.

Jeff Petersen

Lawrenceville, GA

Darrell this is what happened to mine.  It came apart with no tools involved.  I sent mine out to Dale Manufacturing, only because he is just down the coast in Salem Oregon.  He has a jig for the Y Block damper.



Mark

1956 Mercury M100
1955 Ford Fairlane Club Sedan
Delta, British Columbia

The ATI damper is designed to use the scrub pulleys, hence the three bolt design.  The Innovators West damper is a four bolt hole design which accommodates using the SBF pulleys.  Both of these dampers use the factory 108° index from the keyway to locate TDC on the Ford Y engines.

Once a damper slips, it's not going to stay put on the original rubber.  For rebuilding dampers, I typically use The Damper Doctor.  http://www.damperdoctor.com/ 

Lorena, Texas (South of Waco)