this is a little how to on blocked heat riser tubes on most vw upright engines, witch cause stalling and flat spots in accelerating,
one mans junk is another mans treasure…
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what vw are you talking about?????
My dune buggy someone cut and plugged mine I was wondering why it was doing that on take off
I used an old clutch cable with the end splayed out a bit.
And a proper drill that plugs in. Battery powered stuff can be handy in some situations but they will never replace corded and air tools in my shop.
Got the same issue. Blocked solid. A new manifold is only £65 so not sure if its worth saving?
Thanks! Cleaned mine today with a cut toilet snake on a drill…took all day and 2 drill batteries…i almost gave up a few times but then made it right through
Glad to hear that Van Halen song we share nice two things now 😀
I have a 1971 vw beetle and the heat riser have couple of holes that will affect the motor to run smooth?
I'll tell you what I like what I see and I've been watching for about 3 months now and I'll THAT IS THE REASON I'M GOING TO BUY A VOLKSWAGEN IS BECAUSE OF YOU LATER MUCH KEEP ON
Would a 12 volt Intake manifold electric heater wrap, work as well?
I cant help but think an efi kit would fix this!
Boy howdy, don't I remember that! I repaired a lot of 40hp manifolds like that and a few 15/1600.And yes, that carbon clog is as hard as a rock!
I noticed you are using standard boots and wanted to give you a tip I learned few years ago. if you can get hold of an old modern fire hose you can use them as boots they are hard wearing and fire resistant plus one hose is a life supply of boots. older hoses can be used but not as hard wearing and heat resistant as modern plus I've only ever used modern never tried or known of anyone using older.
I could be mistaken, but my understanding has been that air temperature decreases in the venturi areas of the carburetor, above the throttle plate, and that water vapor in the air freezes THERE – causing the hesitation – unless the heatriser warms up the carburetor. How does the heat riser warm up the carb? Due to heat conduction from gas to metal, any exhaust fumes that go up into the heat riser will warm up the heat riser and then due to heat conduction from metal to metal, the bottom of the intake manifold will get warm, and again due to heat conduction from metal to metal, the entire carburetor will get warmer, warmer enough to compensate for the cooling effect of the venturi action.