strong waterflow

[René W]

I have replaced the old leaky waterpump for a modern non leaky pump.
Now the water is pumped so strong into the radiator it is pouring out the overflow pipe,is there a simple solution to solve this problem?

[Drive Shaft Dave]

Make sure the coolant is below the radiator baffle.

[Synchro909]

Do you have a thermostat? fitting one will slow down the flow because of the restriction in the top hose. Alternatively, put a roofing nail in the overflow pipe.

[BILL WILLIAMSON]

Originally Posted by Synchro909

Do you have a thermostat? fitting one will slow down the flow because of the restriction in the top hose. Alternatively, put a roofing nail in the overflow pipe.

I found that this worked on Minerva, using a 160 degree thermostat! That's an EASY, QUICK way to control the flow. She didn't even have a baffle, allowing me to see some RUST flakes in the top of some radiator tubes. This causes the need for REGULAR backflushing! The head & block is OOOOLD iron & it's like a "factory", producing RUST flakes------RUST FLAKES are the most common cause of overheating
I've described how to make a CHEEP backflusher by using an expanding "plumbers helper" & a blow gun with a long skinny tube. Just poke it in the back end of the lower pipe & BLOW-BLOW-BLOW--(Just remember to remove your thermostat FIRST) "Modern" cars use thermostats to cause proper flow at ALL speeds & temperatures!
"Sometimes" the cause of a problem can be overlooked, through "overthinking" it
YES, I repeat a lot, BUT, repetition is the MOTHER of learning & the FATHER of BOREDOM! (Whatever that means???)
Bill Cool

[René W]

It does not matter if the level of the coolant is low,it still pumps towards the overflow pipe.
I don't have a thermostat,i blocked the overflow but then the coolant is bubbling out of the filler neck/cap.

[macdonge]

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Sounds like your rad is plugged up causing enough backpressure to push coolant out the overflow.

[René W]

Rad is not plugged,i know because it has got a new core last october.
When the old waterpump was on there was no problem,the new pump has much more flow.
I am thinking of creating some kind of restrictor in the upper hose or solder a copper plate into the rad so the direction of the flow will be bend off.

[Mitch//pa]

Grind the fins down a little and drill a hole in each one...

Maybe your core was not done to factory specs

[René W]

The core was done by BLAAK RADIATOR SERVICE a weel known firm in the Netherlands who is specialized in vintage radiators,they even make a complete factory replica if you want to.http://www.blaak-radiateuren.nl/nl_NL/

[MAG]

X 2 on post 7

[Cornishman]

Originally Posted by René W

The core was done by BLAAK RADIATOR SERVICE a weel known firm in the Netherlands who is specialized in vintage radiators,they even make a complete factory replica if you want to.http://www.blaak-radiateuren.nl/nl_NL/

Thanks for posting that link, things like that may be very useful for me.
I thought that I had a circulation problem but it turned out to be a hole in the cylinder head, the compression stroke of the No. 1 cylinder was putting a lot of unwanted pressure into the cooling system. Since I fitted a new head it's all been fine. Good luck, I hope you find the solution to your problem.

[Mitch//pa]

Originally Posted by René W

The core was done by BLAAK RADIATOR SERVICE a weel known firm in the Netherlands who is specialized in vintage radiators,they even make a complete factory replica if you want to.http://www.blaak-radiateuren.nl/nl_NL/

So much for that

[René W]

Originally Posted by Mitch//pa

So much for that

No Mitch,it was'nt their fault.
I delivered them a radiator wich had leaks allover and asked them to recore it.
That's just what they did,the new core was exactly like the old was.
I think a previous owner of my Tudor had the original radiator fixed by an obscure company who did'nt care if it was original or not,only the price matters.
"BlAAK"company is a very skillfull company with a good reputation and i am sure if i told them the radiator was for a model A they would have told me this was wrong,but i did'nt told them where i needed it for,just asked if they could fix it,...........my mistake.

[Mitch//pa]

Originally Posted by René W

No Mitch,it was'nt their fault.
I delivered them a radiator wich had leaks allover and asked them to recore it.
That's just what they did,the new core was exactly like the old was.
I think a previous owner of my Tudor had the original radiator fixed by an obscure company who did'nt care if it was original or not,only the price matters.
"BlAAK"company is a very skillfull company with a good reputation and i am sure if i told them the radiator was for a model A they would have told me this was wrong,but i did'nt told them where i needed it for,just asked if they could fix it,...........my mistake.

Aha Ok.got it.
.thats ashamed they didn't realize it was not correct for your car. Being a Model A at least over here they are very popular

[Cornishman]

Originally Posted by Mitch//pa

Aha Ok.got it.
.thats ashamed they didn't realize it was not correct for your car. Being a Model A at least over here they are very popular

You have to understand some members don't live in America. Quite often we have to use vintage car specialist who are experts of the engineering of the day but not experts on Model A Fords. To them it is another car and they are far more likely to have more expertise on the more usual European makes. We have a lot of them, I could make a list if you are interested.
AlfaRomeo, Bugatti, Citroën, Delage...

[Big hammer]

I wonder if the baffle is missing in the radiator? Can someone post a picture of the radiator baffle? I think there is a good picture in ford service manaul!

[Jacksonlll]

If your core is not restricted, then you just have a velocity problem. You must be flowing over 40 gpm. Just put a restrictor plate of some sort in the upper hose.
Keep in mind that the only water the pump can pump is what it gets from the radiator. It can't pump too much, assuming you are not making bubbles of steam in the engine.
Can you give us a picture of your set up?

[Y-Blockhead]

René, Before I installed a thermostat in my Town Sedan it had this restricter plate in the outlet. I took it out because I felt I didn't need both the thermostat and restricter.

[René W]

Originally Posted by Y-Blockhead

René, Before I installed a thermostat in my Town Sedan it had this restricter plate in the outlet. I took it out because I felt I didn't need both the thermostat and restricter.

That looks allright to do,or i can install a thermostat.......where does the thermostat need to be installed,between the outlet and the head?

[Y-Blockhead]

Originally Posted by René W

where does the thermostat need to be installed,between the outlet and the head?

Most install it in the outlet hose. All of the vendors sell them. http://www.snydersantiqueauto.com/thermostat-507 Your choice, 160°F or 180°F.