| TALES OF THE ALUMINUM MANIFOLD [message #69903] |
Thu, 07 January 2010 11:19  |
Michael Bozardt
Messages: 367
Registered: January 2007
Location: College Station, Texas
Karma:
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Senior Member |
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Bought a Dick Paterson carb and after removing the old one, saw that the intake manifold was cracked in three places down to and into the crossover.
After checking several sources, was convinced that it could not be adequately repaired.
Opted-is there a choice?- to buy the alauminum manifold now offered by the two Jims made especially for the GMC motorhome.
I have a few comments on the installation:
1) buy the gaskets also and throw away the "turkey tray"(the metal tray under the manifold that serves as a gasket for the manifold). Use high temp sealant to hold the gaskets to the manifold for installation purposes.
2) Buy an electric choke-note that Paterson puts one in his rebuilt carbs.
3)Use a high temp gasket sealant to place the two end pieces of the gasket set(small curved rubber pieces that attach to the block).
4) Note the water connecting "T" at the rear of the manifold is corroded and it also is the wrong size for the aluminum manifold.
Bought an aluminum replacement(from O'Reilley's) that fits but has a 3/4 inch connection for the hose. Connecting hoses are 1/2 inch so get a 1/2x 1/2x 3/4 plastic "T" from Home Depot or Lowe's.
5)Note there is a round, raised casting that interfers with the throttle linkage plate that bolts to the rear of the carb. The casting is higher than the plate. My solution was to put spacers under the plate to raise it up and then use longer bolts to secure it to the carb. Others have simply bent the plate.
6) Find an appropriate place to connect the electric choke. I have not done this yet. Anxious to fire it up-don't forget to replace the coolant in the radiator!!
7)BTW, I removed the large A/C bracket from over the right valve cover and two brackets from the manifold to the radiator shroud. I did not disturb the tension on the A/C belt doing it this way.
Michael at GEMRECS
[Updated on: Thu, 07 January 2010 11:21] Report message to a moderator |
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