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| | | | Joined: Aug 2009 Posts: 46 Wrench Fetcher | | Wrench Fetcher Joined: Aug 2009 Posts: 46 | Hi
I've rebuilt my 216 and am ready to put the newly rebuilt Rochester 1 barrel carb on it. I purchased a new insulator and 2 gaskets. My problem is when I go to tighten the nuts down I only get a few threads down. On the stud that is on the engine side I can't even get the nut started. Has anyone even had this happen? Is there a thinner insulator possibly?
Thanks for any advice in advance.
Kevin in Algonquin, IL | | | | | Joined: Jan 2001 Posts: 5,337 'Bolter | | 'Bolter Joined: Jan 2001 Posts: 5,337 | There was only one thickness insulator used.
Both studs should be the same length.
There wasn't a gasket used between the insulator and manifold originally.
See the USA in your vintage Chevrolet! My Blog | | | | | Joined: Jun 2012 Posts: 1,747 'Bolter | | 'Bolter Joined: Jun 2012 Posts: 1,747 | Is the stud short? Or are the threads damaged? You cab replace the stud..it will be slightly less difficult than one on the exhaust side. Or, you could chase the threads with a die, to clean them up. Sounds like the studs have broken off and need to be replaced.
Steve H
| | | | | Joined: Feb 2014 Posts: 18 New Guy | | New Guy Joined: Feb 2014 Posts: 18 | Your statement "Is there a thinner insulator possibly" suggests that your problem is that your studs are too short...NOT that the threads are mung'ed up. Is this correct?
Assuming your 216 is the same as the '48 216 on my AeroSedan, you can compare the protruding stud length as follows:
With my insulator mounted, it's just over 5/8" thick (0.640"), installed with NO gasket (it's original).
This leaves just over 3/4" of stud protruding (approximately 0.780").
This means that, if your manifold/carb are the same as mine, then you should have about 1-7/16" of stud sticking out from your manifold casting (almost an inch and a half).
Hope this helps. | | | | | Joined: Aug 2009 Posts: 46 Wrench Fetcher | | Wrench Fetcher Joined: Aug 2009 Posts: 46 | Thanks all. I took the carburetor off when I tore down the engine. So don't believe the studs are broken. I should have paid closer attention to the gasket - I have 2 on there and sounds like I should remove the 1. I will also measure and compare. Thanks again for getting back... now I have something to do tomorrow! :-) | | |
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