Engine/Transmission (1994 - 1998) vacuum pump seal and o-ring

[bowhunter]

I got the seal and o-ring from CPFF.



I put the new seal in the vacuum pump assembly. I drove the old seal out and drove the new seal in the aluminum bushing/adapter, but the o-ring on the adapter seemed good.



The o-ring CPFF sent me was bigger than the one on the adapter. I assume the o-ring wasn't from the adapter.



The only other o-ring was on the vacuum pump itself. There was a big, orange/black thin o-ring that seals the vacumm pump to the adapter. The o-ring CPFF sent was too small for this. So I put it back together without changing o-rings.



No leaks so far...





Has anyone had this experience? Do I have a slightly different vacuum pump and adapter assembly from some of the others that I 've read about?





Thanks

 

[djgwinn]

Hi, there are two different style vacuum pump assemblies. I did the same as you did with the o-rings. CPFF sent me just the seal when I told him what my pump looked like(he doesn't have the o-ring sizes for this other pump). I did this about a month ago and don't have any leaks yet.

David

 

[bowhunter]

I appreciate it. I hope I have the same luck.



I worried about going through the mess of changing the seal and still having a leak.



I hate to have to tear it apart again.

 

[RPyle]

Who/what is CPFF?

 

[RWorth]

CUMMINS POWERED FAST FORD

 

[DBCooper]

Is there an easy way to tell what kind of pump we have? I think I have a leak at the vac pump and would like to line up the parts. Also, does anyone have the part number to the gasket between the pump and the case? Thanks

 

[djgwinn]

CPFF sent me pictures of the different vacuum pumps to let me see the difference. If anyone would like copies PM with your email address and I will try and send them out.

David