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Dave, I looked back through some older pics of the unit. See attached. Is this the thermostat adjustment?

Thanks, Dave. No leaks - can pull a vacuum to ~30 inches and close it off for the night. Next morning, still tight. I'll check the other two things you suggested Friday and report back. Appreciate the help!

Rick, I have installed your A/C seal kit. Charged the system with 32 ounces, but not getting the kind of vent temps I expect. Pressure readings are good - ~25 psi low side, ~175 psi high side. I would expect something in the 40 or 50 degree F range on air temp coming out of the vents, but still...

Thanks so much!

I'm planning to evacuate and recharge. How much to put in?

Oliver, Can you share the replacement bearing part numbers, please? Or dimensions, please? Thanks, Tim

Thanks, Mike!

Everyone has three rotary dials there?

All, Between this original post and now, SPF has changed the control switches a bit. Is the toggle switch circled in the attached photo the "demister" switch? If not, can you help me identify it, please? Thanks. Tim

Don, I have these on two of my cars - on the negative post. They are very convenient and save the clock draining the battery. Just a half turn will disconnect the circuit. Amazon.com: Top Post Battery Master Disconnect Switch: Automotive

I've had a similar issue, but haven't spent much time looking into it. When I close the door, sometimes it doesn't latch completely. I can push it from inside and make sure it's closed. When I push on it and discover it isn't closed, I can pull the unlatch cable and hear the latch "click" - then...

Lucky, indeed. To think that this happens - even in cars that are driven every day - upsets me. I wish we'd stop promoting Ethanol as a great thing. Now, I'm running around putting additives in every gasoline engine and fuel can I own!

BenL, Yes, that's it. I haven't tried it, but the story behind it and NASCAR facing the same fuel system problems when they switched to Ethanol blends encouraged me to try it. Neville, Sounds very promising. I may try that after I try the Carb Defender. Thank you for posting. Tim

I just replaced the really awful factory SPF bulbs with LEDs I purchased from Amazon: Amazon.com: MICTUNING Extremely Bright H4(9003) LED Headlight Bulbs, 80W 8000 Lumens Hi/Lo Beam (6000K White, Pack of 2): Automotive The only other thing I had to purchase was a P43T to H4 adapter to place...

Already reading about NASCAR-developed "Carb Defender". Looks like the stuff I need.

Thank you, JP! Great advice.

Any carb experts want to analyze what I found in my Holley 4150? It was running really rough off idle, around 1500-2500, with some surging if you tried to hold steady speed in 2nd or 3rd gear. This is the vacuum secondary side. This stuff looked like battery corrosion - very flaky, crusty. I...

I learned a tough lesson recently. TX Custom Vehicle registration expired 12/31/2017, while the GT40 was down for some work. In March, I took my insurance paperwork to the county annex and asked to renew the registration. Sorry - no longer in the system! 30 days after the Custom Vehicle...

Hi, Mitch. Many people use a brake pressure switch, which closes when it senses pressure increase in the line. They been around for a long time. Example: Speedway Brake Line Port Pressure Switch, 1/8 NPT

40 Bud - do you have a photo of that?