As always other projects tend to get in the way.
Pulled the carb and went at those vacuum leaks. Cleaned the goop from the PCV stob and it was pretty loose. Pulled it, cleaned it up, applied some Aviation permatex, pressed it back in and put a coating of JB Weld around it to seal it up.
PicRemoved the vacuum fitting in the intake under the carb, determined it was in pretty bad shape and plugged it with a threaded plug. The Carb has a large constant vacuum port and I'll use it for the power booster. I may track down a new barbed fitting later...
The gauges I ordered finally arrived (free shipping did take 8 days)
PicThe water temp and oil pressure gauges are mechanical with adapters. The fuel gauge is a 0-30 ohm. I determined when troubleshooting the electrics that the gas gauge was bad.
I'm going to end up installing a new fan control switch (on order) as I need one that will thread into the small sender port in the head. 1/8NPT is whats needed and the one that came in the kit I'm using is a 3/8NPT. The temp probe will install in the port below the thermostat where the current fan control switch is. I'm thinking the small sender thats installed in the head is for an idiot lamp and not a fan controller as the 79 engine ran a fan off of the water pump.
I found this fitting
Pic and pulled it thinking it was tapped into the coolant jacket. It isn't. What gallery or void it's taped into is the question. There was some sooty dry oil like deposits in it and the fitting passes either vacuum or hot air through all 3 ports. At this point I'm just going to plug it with a threaded plug. Anyone know it's function?
Spent a couple days on the electrics. Removed the regulator and installed a terminal strip and a 12v to 6v resistor in it's place.
Pic Started going through the rats nests of wires. I now have hi/lo headlites, parking lites, turn sigs, tail lites, brake lites and dash lites. I've decided to add a headlight relay.
As for the OEM gauges. The ammeter works. The oil and temp gauges weren't hooked up and would read to low for this 250. At this time I'm leaving them be and will be using the new gauges. The gas gauge shows no deflection with 6v applied to the correct terminal, with and without the sender connected. The sender does show approx 10ohms. Going to use a new gas gauge for now. The overhead electric wiper is only 1 speed but at least it now works. I'm leaving it as is for now also.
The more I do, the more I find.....
