I see that the stock intake manifold sits right above the exhaust manifold. Why is it that the intake needs to be heated? Also the stock intake manifolds have been tapped with a connector. What is this for? Vacuum? Heating? Thanks in advance for furthering my knowledge. Haasman
The carb does need some heat to atomize the fuel properly & for faster warm ups... but not too much heat... hence the insulator between the carb & the intake. Heating the intake is a concern in colder climates but.... it is a non issue here in the middle of the desert. The threaded hole in your intake is the source where you to tap into the vacuum system to run things like your vacuum operated windshield wiper motor.
Intake Manifold Vacuum If you go with electric wipers (old VW Beetle motors are 6 volts and work great) you can get a nifty vacuum gauge and mount it in the cab , it'll show you how well your engine is running at any given point and is a usefull tune up & diagnosis tool . Ideally , you'll get 21" vacuum @ idle , most seem to run around 18" tho' .
The truck has been converted to 12 volts ... so that’s the vacuum source. Good, I am starting to understand under the hood. Vacuum gauges are great. I've always been amazed how much they tell you. I admit I haven't used one in a while. Great idea .... any suggestions on type and where to be mounted. Thanks for the info, this newbie really appreciates it. Haasman
Vacuum Gauges Well ; Any FLAPS will have them but I really prefer the older " Motor Minder " brand and typ , they have a faster reaction time and the face will have colored segments in addition to the inches of vaccum , this allows you to throttle up on open roads and max out your fuel economy etc. I bet Mother Trucker has some nice old ones affordably . I mounted mine under the dashboard , left of the steering column , if you're lucky and find an inverted typ gauge clamp mount , you can mount it on the steering column between the gauges where it'll be a pretty , dynamic gauge as you roll on down life's highways & byways... I mounted my vacuum fan there instead so I can see it spinning gaily and not acutally moving any air . BTW : I got my vacuum gauge for $3.00 because it's old and not pristine , plus inaccurate (sort of like me , no ?) , I could restore it but I just like it's being there and dynamic , I don't need any stinkin' gauge to tell me my truck runs O.K. and is (once again) shooting ducks at tickover..... . Stewart Warner and VDO both make nice looking gauges , be sure to order the DeLuxe one as the Std. gauges don't have illumination and you cannot add a bulb .
Sweet ! That's a really nice one ! . Big too , most are standard 2" . I see your truck was painted in the 1970's by the same guy who painted mine that miserable off blue , twice on my poor old rig . My ' Whistling Bondo Man ' Bud Covey used to love that color and painted *so* many old VW's that wretched color I finally told him the very next one , I'd not pay for as it made them nearly unsellable , even to College Kids for $600 . I can still see that blue in the door jambs of my truck .
I assume it was done in 85, according to some writing on the glovebox door..."restored in Jan '85" There is the name and # of the spray paint used written under one of the door panels. This truck was origionally dark blue, I think. I have found 3 colors of blue, 2 shades of green, and a few panels have some red/orange on them. Where the paint is chipping in the doorjambs, you cn see the orig. sheen grey metallic.
