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#39556 11/13/2003 1:57 AM | Joined: May 2001 Posts: 1,904 'Bolter | | 'Bolter Joined: May 2001 Posts: 1,904 | I'll be putting a Rochester Monojet on the manifold of my 261. It has the 1/2 in. thick plastic heat insulator block to separate the carb from the manifold.
The carb rebuild kit came with 3 gaskets which range from thin cardboard to a 1/8" thick composite of some sort.
Are those 3 "gaskets" really heat insulators?
Should I use any of these with the 1/2" heat insulator block? These "gaskets" are not shown in the rebuild kit drawings. Thanks!!
1948 3/4-Ton 5-Window Flatbed Chevrolet 34 Years. Now with a '61 261, 848 head, Rochester Monojet carb, SM420 4-speed, 4.10 rear, dual reservoir MC, Bendix up front, 235/85R16 tires, 12-volt w/alternator, electric wipers and a modern radio in the glove box.
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#39557 11/13/2003 2:17 AM | Joined: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 | Wally,
I have always used a gasket between the carb and the insulator (never used a gasket between the insulator and the intake but a gasket might be OK there). Be sure to line up the notches in the gasket with the notches in the insulator and in the carb above. This notch is for vacuum.
Tim | | |
#39558 11/13/2003 10:12 PM | Joined: Jul 2003 Posts: 106 Member | | Member Joined: Jul 2003 Posts: 106 | Wally,
The first time I rebuilt a carb and didn't use the gaskets, the wipers didn't run very well do to a vacuum leak, and the local antique parts store suggested using the above and below the insulator to help the seal better since the plastic doesn't conform very well to any irregularities at the carb or manifold. My old insulator was made of wood, which was softer and sealed pretty well, but split in two when I took it off. Don't know if the wood was original, but it worked well. I soaked the new gaskets in gas for an hour to soften them up, then installed them and they seal great. Good luck
51 Chevy 1/2 ton-Restored
46 GMC 1 1/2 ton-Farm Fresh
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#39559 11/15/2003 2:32 AM | Joined: Oct 2002 Posts: 60 Wrench Fetcher | | Wrench Fetcher Joined: Oct 2002 Posts: 60 | Wally on a different subject you posted
16X16K
CAP 3045 LBS, 80 PSI, DOT T
5 12 21
Rockwell Fumagalli, Made in Brazil
can you tell me what store you got the rims at I have no luck finding rockwell fumagalli . thanks Bill
Bill 1951 3/4 ton 5 window pick up
1955 GMC 1/2 ton longbed automatic
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