2.0TD into 1987 VW Quantum Syncro Wagon

[Nevadan]

To alleviate the engine running hot I relocated the waxstat coolant supply hose by splicing into the upper radiator hose much lower than I originally had it using a very short T off a mid 90's Mercedes and a silicone hose from Prothe (Hans Auto. He gets hammered online but has some good stuff.) I was hoping to prevent air from being drawn into the waxstat lines. It did help but didn't completely solve the problem.



While draining the coolant, and I've done this about 10 times to get rid of the oxidized material, I found a kink in the line from the lower radiator to the thermostat. I placed another piece of hose around the kink and it now flows perfectly, doesn't overheat and there's no sucking steam sound. Problem solved. I'll re-plumb this with a pieced together hose.

[Nevadan]

Since there was a 70 amp fuse on the Audi I assumed it was a 70 amp fan but it's a 500 watt fan so only 40+ amps. Turns out the fuse on the ground side was not a stock fuse. It's still extremely powerful and sufficient to cool the engine even on the 100F days I've been testing it. I don't think it's even run on high yet, but I also haven't climbed any hills.

Following the cooling system fixes it ran real strong yesterday. I'm still flushing the oxidation out and will continue to do so until I get clear water out.

I ran it up to 75 mph and could tell it's revving pretty high but still runs smooth and strong. I'm going to experiment with a tach from a spare Mk2 cluster and see if I can get it to work.

[v8volvo]

Sounds like you are getting close! Will be fun for us to see a video once you are all done.

A Mk2 diesel tach? I bet that would at least confirm that your W terminal is working on your alternator. If that tach powers up and registers some kind of reasonable reading then you at least know you have a good signal you can work with.

[19misha72]

Добрый день. Отличная работа ! Поздравляю !

[Nevadan]

Here's a video of the engine installed and running. I'm very happy with the power and "feel" of the engine. I did an RPM calculation and I think it's turning 3400 rpm's at 70mph.

https://youtu.be/FpEFiwPF5Ok

I've got a tachometer from a 1985 TD Jetta that I'm going to install which should work with the W terminal on the Audi alternator. I'll test it prior to installation.

[Nevadan]

Originally Posted by 19misha72

Добрый день. Отличная работа ! Поздравляю !

Thank you!

What do you want me to see in the picture?

[19misha72]

Предпологаю volvo устанавливала 5 цилиндровый дизель на 240 модель и назвала его d20.
Спасибо за Ваш расказ и фото . Я в живую на Ваших фото увидел 5цилиндровый idi.
P.s. На фото мой прекрасно работающий d24 ( dw ).

[Nevadan]

Originally Posted by 19misha72

Предпологаю volvo устанавливала 5 цилиндровый дизель на 240 модель и назвала его d20.
Спасибо за Ваш расказ и фото . Я в живую на Ваших фото увидел 5цилиндровый idi.
P.s. На фото мой прекрасно работающий d24 ( dw ).

It is expected Volvo installed a 5 cylinder diesel on the 240 model and named it d20.
Thank you for your disclosure and photo. I saw a 5-cylinder idi in your photos live.
P.s. In the photo my beautifully working d24 (dw).

The 2.0TD are very rare in the U.S., it took a lot of research to find one from Canada. You have a good idea to put that in a 240, it is a smooth running engine, very similar to the d24 or d24t.

Excellent job on having the d24 running well in the other photo!