Re: [AMC-list] Vacuum Switch Problem

[Wrambler <wrambler242@xxxxxxxxxxx>]

Did you check Home Despot and Lowes?
They usually have a good selection of adapters, maybe get something 
shorter there.

Mark Price
Morgantown, WV 26508
1969 AMC Rambler, 4.0L, EFI, T-5
2004 Grand Cherokee Laredo, 4.7L, Quadratrac II
"I realize that death is inevitable.
I just don't want to be around when it happens!"

----- Original Message -----

> From: "Joe Fulton" <piper_pa20@xxxxxxxxxxx>
> To: amc-list@xxxxxxxxxxxx
> Sent: Wednesday, January 12, 2011 4:14:14 PM
> Subject: [AMC-list] Vacuum Switch Problem
> 
> I have two projects going now, the 65 Rambler almost done, and I'm
> building a 
> 232 engine for my 76 Gremlin.
> 
> The current Gremlin problem is that I'm using a 1972 short block, just
> because 
> it was "done" and all I had to do was add the head the accessories. 
> Because it 
> is a 1976 model car the engine must meet CA emissions.  There one
> coolant 
> temperature overide switch (vacuum switch) the goes on the driver's
> side of the 
> block.  The 76 engine was plumbed for this valve which has 9/16 inch
> NPT 
> threads.  The 1972 block has a 1/2 inch opening (with threaded
> plug).   My 
> alternatives are:
> 
> 1.    Bore the block opening and re-thread to 9/16.   I've never done
> this and I 
> don't have the proper tap anyway.  The engine is mostly assembled and
> I ain't 
> taking it to a machine shop.
> 
> 2.    Find adapters to adapt the small opening to accept the 9/16th
> valve.  I 
> got this done at NAPA and it looks like a Rube Goldberg deal about 4
> inches 
> long.  The poor switch won't see hot water until the engine is
> thoroughly warmed 
> up (maybe never).
> 
> 3.    Find a way to put that switch somewhere else in the cooling
> system.  An 
> emissions shop had done this with a special adapter on a previous Iron
> Duke 
> engine in my Spirit.  It looked like hell but it worked fine until I
> could pull 
> the engine and actually get access to that side of the block.
> 
> I'm wondering if anyone out there has experience in finding an inline
> hose 
> fitting which would accept this switch (valve).  
> 
> 
> Joe Fulton
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