After checking for vacuum integrity, prepare surface for painting with two coats of POR15, then a final coat of black paint. This should resist any rust- through in my foreseeable lifetime.
Sent from my iPhone On Apr 30, 2025, at 12:47 PM, Ray Jones <1970hurst@xxxxxxxxx> wrote:
A simple trick is to use a Propane burner to help find a vacuum leak. With the valve just a little open, and NO flame and engine running at idle. Slowly wave the end along the intake to head seal, around all vacuum hoses, along the Booster and so forth. Avoid the carb mouths. If the engine RPM's go up, you've found the leak. Repeat several times to pinpoint the leak and to make sure the carbs aren't picking up the propane.
Most of us Old Farts have used this many times, but you younger New owners may find this useful. Ray Good advice about vacuum leaks. How often do members ask about poor running of their engines and I often think – yep, a vacuum leak. But far too often, people asking advice get a flurry of very good suggestions from members but don’t bother to respond back later saying they found the problem and explain what the cause was – so we are all none the wiser. So, I am reluctant to bother much anymore – and some people may be happy with that. By the way, I recently was getting too hot in my Valiant and found it was continuously feeding water through the heater core. Traced it back to a crack in those small plastic vacuum hoses that feed the selector switch (and then the heater valve diaphragm) that was only visible by tracing and bending all the hoses. Doesn’t take much of a leak to ruin your day. Just keep the possibility of vacuum leaks in the back of your mind. Henry I think Dan , it may be the rams that force it to up under the fender ,,not models or brands? Some conflict with auto pilot too while on this , big heads up , I had an F that i could not get to run right , maybe even my first one ( as in 1970 or so—yow) Eventually I found the vacuum tank behind the headlight had a rust hole in it . Way back then . Better put , a perforation not a hole . Not large enough to be an obvious vacuum leak, but large enough to wreck idle or any ram setup attempt by FSM I misdiagnosed it as carb bs , rebuilt them etc — still the same . I thought engine had a problem, terrible idle / stall etc . I found it by accident , saw rust on tank up over tire pressed on it it caved in . It gets murdered by road salt spray there . fyi. Check integrity with mity vac lots of our cars ? leads to needless engine rebuild .. Epoxy coat ir? or powder coat it if restoring --
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-- Ray Jones. Y'all come on down an see us. Ya hear?
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