I have found a fine photo review of the part, disassembled & reinstalled, posted some years back by Powered by Spearco,
Here:
http://vwdiesel.net/forum/index.php/topic,24505.0.htmlThat's the first one I've seen like mine, which is black & leaks just a tiny bit of fuel at the point where the bottom elbow joins with the fuel adjustment screw area on the IP lid. I'm thinking that the female threads inside may be tweaked, but haven't removed it yet.
I didn't find any detail on its specific functions or adjustment, but the truck runs great & since I don't know a lot about it, I want to be very careful about taking it apart, lest I break it and disable my daily driver.
I don't have another pump to cannibalize for the top. Has anyone got a spare lid and/or one of these Spearco(?) fuel return/boost vacuum aneroids laying around with a good set of threads?
The JB Weld reinforcement was tried with a few strategic tiewraps bracing that repair. It has ALMOST solved the problem, but I'm not yet satisfied, as a very tiny leak is still present. Dramatic reduction though.
Can anyone tell me more about this part? Is it a Spearco? Should I find a part# on it somewhere? What is it called, how does it work, can it be replaced, & if not, how might I repair it? Is there a o-ring or copper washer right there that could have dissolved or could a diaphragm inside be torn? Can just the elbow be replaced or rethreaded, if that's the problem?
My rig is a 1980 VW Rabbit Pickup with an engine swap from a (I think) NA 1983-ish Jetta or Golf, which has (I think) been converted to a TD. This was my late father's car and after sinking a bunch of time & money in it, it runs pretty good. Zippy.
It has this (Spearco?) spaceship device on the IP & a tiny Holset turbo whose part number tag is missing. I'm trying to figure out many little things about it, among them, this leak.
Also, any of you who happen to be in Oregon, might as well ask, when are you coming to Fort Rock? =)
I will buy you a beer & you can scratch your head with me over this fun setup and help me figure out the best day for a VW Diesel Rally.
Sincerely,
Patti