| Author |
Message |
Mark Karlsson (Flying_fishbowl)
Registered Member
Username: Flying_fishbowl
Post Number: 7
Registered: 2-2006
Posted From: 67.188.211.79
Rating: N/A
Votes: 0 (Vote!) | | Posted on Sunday, January 28, 2007 - 3:02 am: | |
Has anybody put jake brakes on a GMC fishbowl? Is it possible to install them on the lower valve cover without making a bubble for clearance in the engine cover? Thanks in advance. |
john w. roan (Chessie4905)
Registered Member
Username: Chessie4905
Post Number: 396
Registered: 10-2003
Posted From: 71.58.126.56
Rating: N/A
Votes: 0 (Vote!) | | Posted on Sunday, January 28, 2007 - 6:34 am: | |
You would most likely need to extend the bubble some; jakes need an additional 2 to 3 inch taller valve cover. I think the bubble on the engine door is a separate part, and you could easily make a new piece out of sheet metal or fiberglass and install it in place of the old one. |
Dale Waller (Happycampersrus)
Registered Member
Username: Happycampersrus
Post Number: 293
Registered: 7-2005
Posted From: 69.19.14.17
Rating: N/A
Votes: 0 (Vote!) | | Posted on Sunday, January 28, 2007 - 9:59 am: | |
Mine is a 1974 GMC Suburban Fishbowl with a 6V92/V730 and Jakes. My valve cover has around 1/2" clearence between the cover and the door. Just barely clears.
I am using the steel valve cover from a 6v71 without the breather and the spacer from Jacobs.
The "bubble" is a seperate part as John describes. It is held on by a handful of rivets if you should have to modify it.
Hope this helps,
Dale |
Steveggt (Steveggt)
Registered Member
Username: Steveggt
Post Number: 10
Registered: 12-2006
Posted From: 71.116.87.220
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, January 30, 2007 - 11:58 pm: | |
Hi Mark,
I had a 1972 Golden Gate Transit (north of San Francisco) fishbowl with the 8V71. Standard GGT engine came without jakes. My friend, who bought the bus from GGT, rebuilt the engine and installed jakes. In order to use the original steel valve cover, he had to use the spacer. Unfortnately, the tailgate wouldn't close squarely...just on one side.
San Francisco Muni fishbowls came with jakes as "standard" equipment, and their tailgates closed squarely.
In both cases, there was no breather on the valve cover.
When I look at the the two buses side-by-side, I do notice more of a curved profile on the Muni.
Anyway...to answer your question...yes, jakes on a fishbowl are not uncommon at all! |
Dale Waller (Happycampersrus)
Registered Member
Username: Happycampersrus
Post Number: 294
Registered: 7-2005
Posted From: 66.82.9.85
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, January 31, 2007 - 7:19 am: | |
Mark,
After doing a little measuring and looking it seems the older Fishbowl engine lids are made a little different than the one's in the 70's.
You will most likely have to modify your door as a 1961 Fishbowl wouldn't have the "bubble space".
Any metal shop can make you a "bubble", cut a hole in the lid, and rivet the bubble on.
HTH,
Dale |
Bill Gerrie (Bill_gerrie)
Registered Member
Username: Bill_gerrie
Post Number: 67
Registered: 3-2006
Posted From: 209.50.74.177
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, February 02, 2007 - 11:10 am: | |
Mark
On my 1965 GMC TDH5303 I had to put in a raised bump as there was no way I had enough clearance. I had an 8V71 at the time with cast aluminum covers. I just bent up a piece of aluminum and riveted in place. Easy to do. Bill |