Quote:
Originally Posted by v8volvo
Interesting. I always thought the 5cyl engines used the same plunger/diaphragm type vacuum pump mounted on the side of the head and driven off the cam lobe, identical to a D24 or D24T. In fact I'm almost sure I have seen some 5cyl diesel and gas engines that had that plunger style pump.
Does your engine have the mounting location for the plunger style pump as well? I wonder why they used this different setup here. Maybe something about the vacuum demands on the original car the engine was in being greater than the other type pump could supply, and this pump has higher capacity to compensate? Like if the former automatic trans had a vacuum based control system, or vacuum hvac or door locks like some cars from the '80s did? Maybe we will never know for sure.
I got my Toyota pickup with a TDI swap running and driving around the block for the first time 3 YEARS ago and am STILL buttoning up loose ends, wiring harnesses, plumbing routings, etc. Still have quite a bit yet to do, even now after all this time. 3 weeks is pretty quick in the grand scheme of these kinds of projects IMO!!  |
There's a casting for the plunger style pump but nothing is machined on the head.
The center and rear differential lock use vacuum to hold the lockers in place so maybe that's why, there's also not much room for the side mounted pump with all the hoses there.
I think I'll be working on some of the electrical stuff for some time, the tach, oil pressure warning light which I think has some connection to the tach, re-plumbing the cooling for the waxstat, etc., etc.
I'll post more photos today with a few more questions.
This is the first time I've done more than just a rebuild or engine swap and it's definitely time consuming. It's so nice to have access to that big shop even though it's 100 miles away, it has actually save me a lot of time; not having to wriggle around in my small garage.