Couple of engine questions....

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King Herald
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Couple of engine questions....

Post by King Herald » Sat Oct 26, 2019 2:21 pm

V6 Essex motor, where do the coolant hoses go from the water pump?

Do I connect between pump and thermostat housing? I won’t be using a hot water carburettor choke device.
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And is this the oil pressure gauge fitting? :oops:
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I assume the pipe stub on the back of the pump is for the heater, then runs to the back of the intake manifold?

I have the old style pints distributor, is there an HEI dizzy available, or what is the best reliable setup? I’m not too au fait with the workings of points ignition and coils etc. :(



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Couple of engine questions....

Post by TrevorG » Sat Oct 26, 2019 2:28 pm

No, that's not right....if you are not using the carb heater....that top pump outlet needs a cap. You can either make one or buy the genuine one or (as I found) a Peugeot one fits. Then the pipe from the heater goes via a new join bypassing the carb to the thermostat. Shout if you want photos.
Hope that helps. :lol:



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Couple of engine questions....

Post by King Herald » Sat Oct 26, 2019 3:06 pm

So from the back of the pump, to the heater, then to the thermostat housing. Thanks.

I think I read a post earlier with an eBay link to the plugging caps. I shall be fitting new hose too.



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Couple of engine questions....

Post by philhoward » Sat Oct 26, 2019 4:46 pm

Depends on the car it came from originally for the heater plumbing. If you’ve got the rear takeoff on the inlet manifold it changes what the original plumbing should be and whether or not you use the stub on the pump or not.


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Couple of engine questions....

Post by philhoward » Sat Oct 26, 2019 5:10 pm

If you’ve got the takeoff at the back of the manifold, you add a pipe as sketched between the pump top and thermostat, run heater from the back of the manifold and return to the back of the pump.

The oil pressure takeoff is correct above the oil filter.


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Couple of engine questions....

Post by King Herald » Sat Oct 26, 2019 8:03 pm

philhoward wrote:
Sat Oct 26, 2019 5:10 pm
If you’ve got the takeoff at the back of the manifold, you add a pipe as sketched between the pump top and thermostat, run heater from the back of the manifold and return to the back of the pump.

The oil pressure takeoff is correct above the oil filter.
Yes, I have the spigot at the back of the manifold. I thought I read somewhere that the front pipe was a bypass for when the thermostat is closed, but I’m a Chevy V8 guy normally, never had a Ford V6 before.

This was the last car I built. 8)
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Couple of engine questions....

Post by philhoward » Sat Oct 26, 2019 8:58 pm

You’re right - it is part of the bypass circuit. Depending on the year (of Scimitar), it either goes straight to the water pump or (via the carb) to the heater, then back to the pump. Which one is better? Both have their merits but in reality it makes little difference as long as there’s a bypass route there.


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Couple of engine questions....

Post by Sarecen » Sun Oct 27, 2019 6:01 am

Yes, you are correct

Your second photo with the red arrow points to the take off for the oil pressure gauge pipe.

regards

D



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Couple of engine questions....

Post by King Herald » Sun Oct 27, 2019 8:43 am

Thanks chaps, I shall be slowly assembling things, I have a ‘date’ at a car show early next year, I’ve promised to get back on the road for then. 8) I was going to be early this year, but you know how these things go. :oops:



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Couple of engine questions....

Post by King Herald » Sun Dec 01, 2019 4:36 pm

Another issue, the pipe stub on the back off the water pump has no barb on it, in fact it is tapered, almost as if it doesn’t want a hose to stay on there. Is this normal, as it is a new pump?
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Couple of engine questions....

Post by willholderogri » Sun Dec 01, 2019 4:40 pm

There is no real pressure to worry about so parralel is fine just use a decent clip to hold the pipe on


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King Herald
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Couple of engine questions....

Post by King Herald » Sun Dec 01, 2019 10:09 pm

willholderogri wrote:
Sun Dec 01, 2019 4:40 pm
There is no real pressure to worry about so parralel is fine just use a decent clip to hold the pipe on
Thanks. Now,I think about it, it’s more suction than pressure there.



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Couple of engine questions....

Post by King Herald » Sat Dec 07, 2019 9:25 am

Another one, what type of fitting do I need to attach the oil pressure gauge to the fitting, whats it called?

I tried to get it out, to install a normal brass adaptor for a gauge, but it is rock solid in the block and I don’t want to snap it off. :oops:

Measures 10mm diameter thread, with a male taper on the end.
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Just discovered this elsewhere on the forum, seems to be what I need, where would I avail of one of these?
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Couple of engine questions....

Post by David Tew » Sat Dec 07, 2019 12:57 pm

The specialists can supply the correct pipe or you could make one yourself using braided hose and the relevant fittings. If you do fit a braided hose ensure it is covered by tape where it runs behind the dash to prevent electrical shorts!

Be aware there are two types of fitting in the block - see below (engine-side at the top).
Oil pressure gauge adapter.jpg
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Couple of engine questions....

Post by Coupe Racing » Sat Dec 07, 2019 1:03 pm

I have 3 different types :shock:


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