ABA/inline coolant hose routing using VW hoses

[Vanagon Nut]

Roger.

The metal nipple on the engine head feeds coolant to top of expansion tank.

Don't cut the plastic rings on hose(s) 22277 yet. You need a coolant return path from hose off head back to coolant pump. However, I don't know if the ABA 22277 hose will fit in the engine compartment with your "carb" engine mount angle.

What angle will the engine mount at? Is the engine lid raised?

The larger nipple outlet at manifold on head can be reduced to 1/2" to connect to heater hose going to heater core using this hose 171 121 611 E This is what I did. But, it's an old possibly uncommon hose. So, I bet you could find a Gates hose for that.

Did you get the long metal coolant manifold from the donor car? If not.....

you need a manifold to route return coolant from heater core and expansion tank back to coolant pump. I cut the OE long metal manifold and welded beads on it. The part is 1/2" x 1/2" x larger. 5/8" ? On my other ABA conversion I soldered copper pieces to form that same part but that required some custom work.

_________________
1981 Westy DIY 15º ABA

1988 West DIY 50º ABA

VE7TBN

[rogertj]

[Vanagon Nut]

[rogertj]

Thanks Neil for the sketch, great dummy proof rendering!

I'll most definately use it, I'll just probably cut it to put the big T and do the necesary adjustments for the lower part, but im instaling an oil presure gauge (glowshift) so I need to see the fix to this. Probably will need the cabrio/audi tstat housing.

Yes I had the same question with those small houses to the oil cooler from water pump

This is what I have with that hose, ill see a way to repurpose it, tell me what you think. Its kind of funny we have been at it for 2 days lol!

And Im one water pump pulley short im buying that next week, by the way do you remember whats the direction it turns? I think it to the right (clockwise) as the belt that I have (no AC ABA engine) is the way it would fit

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Roger
Had a Carbureted ABA after engoing the heck out of it now going for ABA 2.0 Jetta EFI ill put a garrett in to the tin can later or maybe go electric?
https://www.thesamba.com/vw/forum/viewtopic.php?t=...mp;start=0

[Vanagon Nut]

I understand how long this type of thing can take. I spent a LOT of hours to figure out my custom coolant hose and power steering set up.

I agree. You'll need to alter that 22277 hose. Maybe rotate T upwards then rotate small hose from T downwards to line up hoses to oil cooler and pump? Would cutting the hose a bit shorter where it connects to head help line up the oil cooler and pump hoses?

I have an ABA on engine stand with that same type of hose. If you want, I can try various hose positions on it. I am curious.

(edited) You could use a VR coolant pump pulley and one ribbed belt to drive pump and alternator. This solution is known as the "AC delete"

Not sure if this is the thermostat housing you're thinking of but I'm using one that, I think, is similar or same as used on the Diesel Vanagon 1.6 I used thick wall marine type hose to connect to the Vanagon long pipe

I used a galvanized 1.25" m x m nipple to connect the hose to a 1.25" x 1.5" hose to long pipe. (IIRC your van is an '85 so you won't need to do that if it still has the stock 1.25" pipes). I was concerned that stress introduced by how I curved the thick wall hose might cause the plastic thermostat housing to fail but so far so good. Fingers crossed.

Looking at this image I'm reminded that I should make a nicer looking bracket for the PS reservoir! And a better method to secure that marine hose to firewall !

This shows the "AC delete" using VR pulley. Notes in yellow don't apply to that.

_________________
1981 Westy DIY 15º ABA

1988 West DIY 50º ABA

VE7TBN

[rogertj]

Yes Neil it gets dificult but not imposible ha! Just by seeing the images, I found that the water hose used by the original poster is smaller in ID than mine, look at the dimensions (or maybe not?):

So Ill have to either:
A: Replace my 22277 hose with the correct one
B: Buy the one mentioned by the OP and keep mine
C: Buy pieces anyways of more hose because I still need to do the plumbing for whats left short in my conversion

Or maybe ABC together
_________________
Roger
Had a Carbureted ABA after engoing the heck out of it now going for ABA 2.0 Jetta EFI ill put a garrett in to the tin can later or maybe go electric?
https://www.thesamba.com/vw/forum/viewtopic.php?t=...mp;start=0

[Vanagon Nut]

The hoses the OP used do look narrower but ends appear to be the correct size. That design uses less material and reduces weight.

If your 22277 hoses fit at connections, overall hose width is not an issue.

If feasible, if it was me, I'd mount the motor now then figure out cooling system design.

I'd guess you've done this already but on my first conversion, I found it quite useful to go and look at hoses my local parts supplier had. One could even take pictures of them. On my second conversion I spent a lot of time viewing the Gates catalogue that shows hose size, shape etc.

Neil.


I altered the image to show the hose shapes:

_________________
1981 Westy DIY 15º ABA

1988 West DIY 50º ABA

VE7TBN

[rogertj]

Thanks Neil Ill take some more photos once the hose routing gets done in the engine, also I'll figure out the direction the water pump spins just to be sure Im ok.
_________________
Roger
Had a Carbureted ABA after engoing the heck out of it now going for ABA 2.0 Jetta EFI ill put a garrett in to the tin can later or maybe go electric?
https://www.thesamba.com/vw/forum/viewtopic.php?t=...mp;start=0

[Vanagon Nut]