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| | | | Joined: Jun 2008 Posts: 48 'Bolter | | 'Bolter Joined: Jun 2008 Posts: 48 | I have a 54 with a 216 engine I'm tring to get back together.
Does the coolant bulb fit directly in the head and get tightened down by a pipe bushing or is there an adapter that gets screwed in the head first?
The way I have it installed, it's loose and will leak. Is there and additional seal or oring that I need?
Thanks | | | | | Joined: May 2001 Posts: 7,438 Extreme Gabster | | Extreme Gabster Joined: May 2001 Posts: 7,438 | There should be a pipe threaded fitting in the head. The bulb is self sealing in it.
. | | | | | Joined: Dec 2010 Posts: 97 'Bolter | | 'Bolter Joined: Dec 2010 Posts: 97 | I have found that sender bulbs on modern replacement gauges (cheap offshore - planned to be replaced later) don't seem to have the same seat dimensions as older sender bulbs so they leak. They are close enough that they look like they should work, but they don't quite do the job.
Some later heads had larger holes set up for the electric sender (plain pipe thread)and need a bushing for the mechanical bulb gauges with the taperd seat.
My main experience on this is with fitting Canadian Pontiac 261 engine into a WW2 Canadian Army Chev that originally had a 216. I don't know how well my knowledge fits your situation. | | |
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