pwrwgn Posted November 25, 2015 Report Share Posted November 25, 2015 Would someone please let me know what size tappet wrenches I need to set the lash on my '51 B3C? Rather not pull covers until I have the wrenches... Any idea where to purchase thin wrenches for the job? I am finding specs at .009 hot intake and .011 hot exhaust. Is this correct? Thanks in advance for any help here! Quote Link to comment Share on other sites More sharing options...
Merle Coggins Posted November 25, 2015 Report Share Posted November 25, 2015 Tapper wrenches are available at many places, including Sears. You'll need a 7/16" and a 1/2". And I believe the specs for our trucks are .010" for intakes and .014" for exhaust valves. Quote Link to comment Share on other sites More sharing options...
pwrwgn Posted November 25, 2015 Author Report Share Posted November 25, 2015 Thanks Merle! I see Proto's got them too... some longer ones that might save me a few exhaust manifold burns on the knuckles! As for specs, I started reading my books (dangerous thought)! The B3 shop manual ( I have a '51 B3C) says 10 degrees intake, 14 degrees exhaust (hot)... My Motors Truck and Tractor Manual, copyright 1952 says 10 degrees intake, 14 degrees exhaust (hot) for the 218... BUT My Motors Auto Repair Manual, copyright 1951 says 8 degrees intake, 10 degrees exhaust (hot) for the 218... Hmmm... This is why I always try to get info from a few different books! Can't imagine why specs would be different for the engine dropped in a car versus a truck? They thinking the truck will work harder and typically be run hotter? Does not make sense... Both are going to have 160 degree thermo's...Seems more likely an error in the car manual? Interesting. Quote Link to comment Share on other sites More sharing options...
Merle Coggins Posted November 25, 2015 Report Share Posted November 25, 2015 I believe there are 2 schools of thought on this. One is that the trucks are more likely to work with higher loads, which would cause higher exhaust temps and hotter valves. That's also why the larger truck engines used sodium filled valves. The other theory is that smaller clearances on the cars would run quieter. Merle Quote Link to comment Share on other sites More sharing options...
John-T-53 Posted November 25, 2015 Report Share Posted November 25, 2015 (edited) Déjà vu... http://p15-d24.com/topic/39909-valve-adjustment-nervous/ Edited November 25, 2015 by John-T-53 1 Quote Link to comment Share on other sites More sharing options...
pwrwgn Posted November 28, 2015 Author Report Share Posted November 28, 2015 Perfect information! Thanks J.T. Quote Link to comment Share on other sites More sharing options...
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