| Author |
Message |
rustybus
Shasta Snow Trip Newt
Joined: November 24, 2002
Posts: 919
Location: Arizona
|
 Posted: Fri May 19, 2006 6:43 pm Post subject: 73 mechanical fuel pump leaking oil from little hole - Fix? |
 |
|
I have a 73 bus with a mechanical fuel pump that is no longer used. I just started driving the bus and it is leaking oil from the fuel pump. I pulled the pump yesterday and put on new gaskets. Today I realized it is spewing oii out of a little hole that looks like a breather hole. In my manual it shows a little tube on there, but with no info on where that would lead to. I guess at this point I just need to know if there is a best know method for pugging up that hole. JB weld? Silicone? Wood screw?
Thanks,
Richard the type 4 newbie
_________________
Richard
www.rustybus.com www.shastasnowtrip.com |
|
| Back to top |
|
 |
Amskeptic
Samba Member
Joined: October 18, 2002
Posts: 8568
Location: All Across The Country
|
| Posted: Sat May 20, 2006 4:24 pm Post subject: Re: 73 mechanical fuel pump leaking oil from little hole - F |
|
|
| rustybus wrote: |
I have a 73 bus with a mechanical fuel pump that is no longer used. I just started driving the bus and it is leaking oil from the fuel pump. I pulled the pump yesterday and put on new gaskets. Today I realized it is spewing oii out of a little hole that looks like a breather hole. In my manual it shows a little tube on there, but with no info on where that would lead to. I guess at this point I just need to know if there is a best know method for pugging up that hole. JB weld? Silicone? Wood screw?
Thanks,
Richard the type 4 newbie |
That suggests a ruptured fuel pump diaphragm and/or(-but-mostly-and) a missing pushrod that is allowing pressure from the right gallery up into the base of the pump.
Colin
_________________
www.itinerant-air-cooled.com |
|
| Back to top |
|
|
rustybus
Shasta Snow Trip Newt
Joined: November 24, 2002
Posts: 919
Location: Arizona
|
| Posted: Sun May 21, 2006 7:25 pm Post subject: |
|
|
I put the push rod back after resealing it the other day. The hole is between where the diaphram usually is and the base. Is there an additional diaphram on these fuel pumps? So far the silicone has stopped the leak there. Not an elegant fix, but so far, an effective one I suppose.
_________________
Richard
www.rustybus.com www.shastasnowtrip.com |
|
| Back to top |
|
|
steponmebbbboom
Samba Member
Joined: May 01, 2004
Posts: 6390
|
| Posted: Sun May 21, 2006 8:54 pm Post subject: |
|
|
| there's two, the main diaphragm in the middle and a shutoff diaphragm at the top. |
|
| Back to top |
|
|
typetwojim
Samba Member
Joined: March 17, 2006
Posts: 88
|
| Posted: Mon May 22, 2006 11:07 pm Post subject: |
|
|
leave the fuel pump rod out. buy a sheet of gasket material and cut a solid gasket to go under the pump.
jim |
|
| Back to top |
|
|
Amskeptic
Samba Member
Joined: October 18, 2002
Posts: 8568
Location: All Across The Country
|
| Posted: Tue May 23, 2006 12:26 am Post subject: |
|
|
| typetwojim wrote: |
leave the fuel pump rod out. buy a sheet of gasket material and cut a solid gasket to go under the pump.
jim |
Careful there, Jim. Right lifter gallery bisects the pushrod hole on the Type 4 engines. Instances of noticeable loss of idle oil pressure have been reported. In other cases, the bronze pushrod guide keeps the oil in the gallery.
Colin
_________________
www.itinerant-air-cooled.com |
|
| Back to top |
|
|
typetwojim
Samba Member
Joined: March 17, 2006
Posts: 88
|
| Posted: Tue May 23, 2006 10:55 pm Post subject: |
|
|
I need to stop giving advice to type four owners, I'm very well aquainted with type one engines, and I to often assume they are the same breed of engine. Please do not hesitate to to put me in my place if I give bad advice.
jim |
|
| Back to top |
|
|
Amskeptic
Samba Member
Joined: October 18, 2002
Posts: 8568
Location: All Across The Country
|
| Posted: Wed May 24, 2006 9:12 am Post subject: |
|
|
| typetwojim wrote: |
Please do not hesitate to to put me in my place if I give bad advice.
|
This is your place. Read, write, and learn. 
Colin
_________________
www.itinerant-air-cooled.com |
|
| Back to top |
|
|
|
