@Cubey I’m late to the party, and everyone please correct me where I’m wrong.....
The top of the water pump in Cubey’s photo has 2 aux ports that are plugged.
On my ‘92 van, one port goes to the rear HC and then to the back of the LH head. The 2nd port goes to the front HC and to the RH head. Would this routing aid in cooling water flow through the heads?
Cubey, under the rear hoses in your photo there is prolly a plug right there....
Well that's interesting. The Banks turbo kit has a custom piece for CDR venting (i think) on upper timing cover, so it blocks the extra port on the water pump.
And the normal one has an interesting mess of tees and pipes to feed the rear heater too. I'm guessing that smaller hose is the funky E4OD preheat thing?
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Those metal pipes there are heater lines. For a frame of reference, that's straight up from the tee in the first picture. I'm guessing this was all redone custom, but who knows since this is a "bus (non-school)". It looks to be all expensive green stripe hose, and a bit messy with an excessive length near the heater core, so it's probably been replaced at some point.
Now it could be that the heater core has been replaced too, for a non-AC version. If not, it probably has 5/8 to 3/4 reducers already. It's a nasty windy today and tomorrow, so I only stayed outside long enough to snap these pictures.
I have to get more gallon jugs to drain the radiator first of all, since I used 3 for draining the water out of the bug's gas tank. So maybe late next week I can start working on this, after I go to town for groceries on Tuesday.
Edit: the wind died down a bit so i looked around by the heater core, and i don't see any reducers. So unless it has 5/8" hose shoved on 3/4" barbs (can't hardly see, stuff in the way. could only see one connection) then maybe it does have a non-AC heater core. or it has 3/4" hose on the 5/8" steel line.
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