<VV> no electrics

[jvhroberts at aol.com]

Almost every Corvair I've had experienced an engine shut down unexpectedly. The culprit? The HRPT. Fusible links are better than fuses because they have less resistance. But, to shut the car down, the power going forward is interrupted. Not a red herring at all. And that battery pigtail supplies power going forward, and ties into the alternator lead as well. Three wires going there. Having an interruption to the alternator also plays hell with the charging circuit, especially for 10SI installations. 

I've never had a problem with the multicavity connectors, although they can be a problem. The HRPT seems to be the first place to look when the engine goes out from lack of electricity. 

 

John Roberts
 

 

-----Original Message-----
From: Craig Nicol <nicolcs at aol.com>
To: Virtualvairs <virtualvairs at corvair.org>
Sent: Sun, May 13, 2012 3:28 pm
Subject: <VV> no electrics


Bob thank you for your factual reply.  In addition to Bob's correct 
statement about a battery pigtail fuse having no effect on system 
voltage and his noting that Corvairs (and virtually everything else had 
fusible links) in this position after '67, may I add that in addition to 
a battery pigtail fuse having no effect on system voltage, a battery 
pigtail fuse isn't even IN THE FRIGGING CIRCUIT that powers the 
headlights during normal operation.

While operating normally, power for the headlights and all other 
electrical loads flows from the alternator directly to and through the 
engine compartment multi-cavity connector and on into the main body 
harness.  The battery pigtail (with presumptive fuse or fusible link) 
only provides charging current into the battery during normal operation.

It aggravates me when so many red herrings are thrown into a thread and 
that the original poster and his question goes under the bridge in the 
process.  As already stated, the issue here is to locate the source of 
the likely OPEN circuit that's causing the loss of power. The HLRPT is 
not likely the cause of the problem because (at least in the three LMs 
on site) it only provides a tie point for the battery pigtail.  My vote 
is a poor connection in one of the two multi-cavity connectors found at 
the ends of the main body harness.  There are also cases of clutch 
cables shorting out the main harness inside the tunnel.

Craig Nicol


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