more supercharger talk

[truckinwagen]

yeah, I will get the EGT thermocouple in, I just need to get the motor running first.

it certainly makes lots of smoke if you mash the pedal

[rabbitman]

I have a used oil pump I don't need anymore, I don't know how to tell if it's long or short though.

Why do they have differing shaft lengths?

What type of vac pump do you have vane or diaphram?

[truckinwagen]

Thanks for the offers guys but i found one locally for a hundred bucks. It came with a vane style vacuum pump. More than i wanted to spend but its here today. Turns out that the bottom end bearings got blown when it ran without the oil pump. So i an going to grab a set of rod and mains tomorrow and install them sunday.

[Rabbit on Roids]

the very early pumps are splined, later diaphragm pumps are short shaft. the latest diaphragm and vane pumps are long shaft. from what ive observed atleast... my 1.5 has a 1.6 turbo oil pump tho. so i tried putting my oil pump in, and it simply wouldnt seat against the block, so i pulled the vacuum pump and it fit no problem, but then the vac pump wpuldnt go back in. so finally i put the took the turbo vac pump on with the turbo oil pump and it worked great. just sucks you had to do it the other way around. mine evere went all the way together, so i knew something wasnt right. yours probably slipped together like butter huh?

[truckinwagen]

yep, never realized anything was wrong until the damage was done.

[truckinwagen]

well, no one local has the bearings.

so I will be ordering a set and then dealing with them when they arrive, probably wont be until next weekend.

and I am trying to find a spring to replace the governor spring in the injection pump, the cummins pump is governed hard at 2900RPM, acts like a rev limiter on a gasser, full fuel until it hits, and then just cuts off hard.

I think there is a local place that can get me one, but I need to figure out how stiff a spring I need.
was thinking I would start at 25 pounds and see what that does.

-Owen

[RabbitJockey]

definitely will be paying attention to how that spring works out

[kaneb]

Great thread.  Supercharger and a cummins pump, killer!

[truckinwagen]

it will be once the damn thing runs.

I ordered a set of main and rod bearings in standard and first undersize, (I don't know if the crank has been ground or not, as I used the bearings that were in it during the rebuild)

I will return whichever set I don't end up using.

as for the spring, I might have some issue, the local seller does not have the spring rate listed, so I am looking for a reliable way to measure it before I buy one.

-Owen

[truckinwagen]

so put a five pound weight on it and a ten pound weight on it(not necessarily the weights I would use, but for the sake of conversation) and measure the difference in deflection.

if it deflects 1" more with the 10 pound weight than with the 5 pound weight it has a spring rate of 5 pounds?

or how does that math work?

[truckinwagen]

so if I were to go in with a 5 and ten pound weights, I would be looking for how much difference in deflection?
sorry, but my brain is unwilling to work properly. the semester starts in two days, and it seems to have decided to utilize every moment possible not thinking about stuff.

thanks,
-Owen

[truckinwagen]

I already tried the VW governor assembly, and it would take way too much cutting of the pump top to make it work.

I thought of a great idea though, what about a fish scale?
hook it to the spring, pull until the spring has moved 1/2 inch and read the fish scale, then again at 3/4(or whatever) and read it again, do math.

that and the fish scales are remarkably accurate and cheap(like $8)

I don't have the GTI with me, it is sitting at my buddies house 50 miles away, and sharing the other car with my wife makes getting to the GTI difficult until next weekend(when I want to drive it the 50 miles home)

so I think I will try to find a spring in the 25 pound range to get me on the road, and then work out where that puts me/get another one after I have the car sitting outside my apartment.

-Owen

[truckinwagen]

well, I just got my hands  on the elusive G60 throttle body linkage!

the guy I bought the throttle body from found it in his garage when he was cleaning up.

now all I have to do now is figure out how to pull two throttle cables at once...

parts shipped today, so I should have a set of bearings and a clutch to install on sunday.


since I don't have a car, shopping for the new governor spring will have to wait until friday when I can borrow the wifes rig.

-Owen

[truckinwagen]

the clutch came in, small little guy, but seriously heavy duty!

should have the rest of my parts tomorrow too, so hopefully everything will be good to go.

[tindias]

Installed 16v Master, booster and pedals the other day.  Just need to bleed them now.  BOV is shimmed and the stack is pumping lots of smoke now, very sexy.  Hope to install the nitrous and have a WOT video posted very soon.