Hold down clamp
 

Is there a hold down clamp made that will put pressure on the center of the distributor base where it meets the gasket? All the ones I see do not get close to the center. Mine leaks vacuum at the base of the distributor on the passenger side. I'd rather not have to make one if I don't have to.

Re: Hold down clamp
 

I put some RTV around the top of the adjustable collar and it helped. I'm pulling close to 8 inches now.

Re: Hold down clamp
 

Ron,


If it starts leaking again , use only the Ultra - Permatex !!! It stops exhaust , oil & air leaks for good, much better than the regular stuff ...

Re: Hold down clamp
 

Ron, Here's the one I'm going to try -

Made by Dewzen, who sponsor Danny Waters Jr.:)

http://www.shop.dewzen.com/Distribut...m1plqscsfapp05

I've never been happy with the older style stamped-metal clamp which seems to load the distributor sideways instead of tightening it down.

Lew

Re: Hold down clamp
 

drill & tap the block for another clamp on the other side.

Re: Hold down clamp
 

I hope you find a solution,Ron. But I can't resist. After just dealing with a rear end cover sealed up with it, use some Right Stuff sealer on it. You won't even need a clamp! LOL.

Re: Hold down clamp
 

The MSD 7905 hold down clamp is the strongest Chevy type clamp I've found.
It's made for holding magneto's which are notoriously difficult to keep from moving.
I used to silicone the base gasket, but I've since machined an O-ring groove in the collar and it works great, no vacuume leaks and it's a lot easier to phase the distributer.

Re: Hold down clamp
 

Thanks for all the replies, you guys are the best.

Dave, I used Ultra black. I just called it RTV because I'm a slow typist.

Lew, If I knew that clamp was deep enough to pressure the center of the collar, I'd buy it.

Jeff, I thought about putting another clamp on it, but I'm looking for an easy way out first.

Dana, My tube of Right Stuff was like a brick. been to long I guess.

Tom, I see that the 7905 uses a stud. This is leaking between the OD of the distributor housing and the ID of the collar and maybe some where the split is in the collar.

Re: Hold down clamp
 

Tom has the best answers.

Re: Hold down clamp
 

Rotor phasing isn't necessary unless the car has EFI or a crank trigger, right? I've only done that when I was running a crank trigger.