Water pump / Continuous leak after changing the seal ....

[THE ZUKE]

Hello guys,
Following the replacement of a faulty seal on the water pump.
When I turn the water pump by hand, and depending on where I stop it. Water flows or not by the lowest screw.
I am surprised that there are no seals around the 4 screws.
Is it normal or not?
I also saw that the heads of the 4 screws were machined by the black part that drives the 2 belts (alternator and power steering).
After changing the seal and made a silicone seal, I was forced to put washers so that the black part (drive 2 belts) can rotate freely.
I took the coast of the thickness of the head of 4 screws, the dimension is it good?
For me the heads are too thick.
Thank you for your advices

[Chryco Psycho]

There never is seals near the bolts
I would use a thread sealer , you also need bolts with thinner heads if the pulley is grinding the heads no spacer should be behind the pulley as it changes the belt alignment

[edison1970]

I would put a little sealant on the threads. Previous owner of mine ground the heads down to clearance for the pulley. I found a set of factory bolts to replace them. I'll take a picture for you if you want.

[THE ZUKE]

There never is seals near the bolts
I would use a thread sealer , you also need bolts with thinner heads if the pulley is grinding the heads no spacer should be behind the pulley as it changes the belt alignment

What is a sealer thread? If I use Teflon (like plumbing) around the threads of the screws, would that be good?
When I changed the seal, I put silicone around the threads of the screws. It seems that this is not the right method.
For screws, I suspected that those installed was not the right thickness. I'm going to look for a less thick model at the level of the head

[THE ZUKE]

I would put a little sealant on the threads. Previous owner of mine ground the heads down to clearance for the pulley. I found a set of factory bolts to replace them. I'll take a picture for you if you want.

Thank you, you give me the same advice from Chryco by putting a putty around the screws.
Ok but what do you use as a product?
Regarding screws with reduced head, I would like the reference.

[Brads70]

I would put a little sealant on the threads. Previous owner of mine ground the heads down to clearance for the pulley. I found a set of factory bolts to replace them. I'll take a picture for you if you want.

Thank you, you give me the same advice from Chryco by putting a putty around the screws.
Ok but what do you use as a product?
Regarding screws with reduced head, I would like the reference.

I simply grond the head down slightly using regular bolts. I guess you could use something fancy like these if you didn't care about looking original.
https://www.fastenal.com/products/details/1173815?term=button+head+cap+screw+3%2F8&r=~%7Ccategoryl1:%22600000%20Fasteners%22%7C~%20~%7Ccategoryl2:%22600039%20Sockets%22%7C~%20~%7Ccategoryl3:%22600043%20Button%20Socket%20Cap%20Screws%22%7C~
or

https://www.fastenal.com/products/details/0171415?r=~%7Ccategoryl1:%22600000%20Fasteners%22%7C~%20~%7Ccategoryl2:%22600039%20Sockets%22%7C~%20~%7Ccategoryl3:%22600041%20Low%20Socket%20Cap%20Screws%22%7C~%20~%7Csattr01:%5E%22Imperial%20(Inch)%22$%7C~%20~%7Csattr04:%5E3/8%22-16$%7C~%20~%7Csattr03:%5E%22Stainless%20Steel%22$%7C~


As for sealant I use this teflon on anything that see's coolant or fuel. Hope that helps you some?
Here are a few pictures of my junk for reference?

[RUNCHARGER]

Make sure your bolts aren't too long.

[THE ZUKE]

I would put a little sealant on the threads. Previous owner of mine ground the heads down to clearance for the pulley. I found a set of factory bolts to replace them. I'll take a picture for you if you want.

Thank you, you give me the same advice from Chryco by putting a putty around the screws.
Ok but what do you use as a product?
Regarding screws with reduced head, I would like the reference.

I simply grond the head down slightly using regular bolts. I guess you could use something fancy like these if you didn't care about looking original.
https://www.fastenal.com/products/details/1173815?term=button+head+cap+screw+3%2F8&r=~%7Ccategoryl1:%22600000%20Fasteners%22%7C~%20~%7Ccategoryl2:%22600039%20Sockets%22%7C~%20~%7Ccategoryl3:%22600043%20Button%20Socket%20Cap%20Screws%22%7C~
or

https://www.fastenal.com/products/details/0171415?r=~%7Ccategoryl1:%22600000%20Fasteners%22%7C~%20~%7Ccategoryl2:%22600039%20Sockets%22%7C~%20~%7Ccategoryl3:%22600041%20Low%20Socket%20Cap%20Screws%22%7C~%20~%7Csattr01:%5E%22Imperial%20(Inch)%22$%7C~%20~%7Csattr04:%5E3/8%22-16$%7C~%20~%7Csattr03:%5E%22Stainless%20Steel%22$%7C~


As for sealant I use this teflon on anything that see's coolant or fuel. Hope that helps you some?
Here are a few pictures of my junk for reference?

Thank you Brad70 for links 

[THE ZUKE]

Make sure your bolts aren't too long.

Bolts no but heads yes (I was sure). I have to change them by an other model.

[Chryco Psycho]

I also use teflon tape with liquid teflon sealer

[jimynick]

Bon jour M. Zuke. If you look closely at Brads premiere photo, you'll see that he has shown a roll of teflon tape AND a tube of paste type sealer. You give the bolt about 3 wraps of the tape and then goop it with the sealant and you should be good. The "black thing" that has the belts, we call a pulley. Bonne chance, mon ami!

[THE ZUKE]

News of the leak ...
Water always flows at the same place, at the bottom screw but only at a specific point on a full turn of the water pump.
A small trickle of water is only present when I turn the axis of the pump by hand and I stop at a specific place.
I tried when starting the engine, there is no leak except when I stop the engine and the pump is at a specific place.
Nothing is logical in this phenomenon,  if the pump rotates quickly, there is no trickle of water.
If you have an idea, I'm interested.
Thank you in advance 

[THE ZUKE]

I also use teflon tape with liquid teflon sealer

Thanks Psycho for the advice but the leak is very special. 

[Brads70]

News of the leak ...
Water always flows at the same place, at the bottom screw but only at a specific point on a full turn of the water pump.
A small trickle of water is only present when I turn the axis of the pump by hand and I stop at a specific place.
I tried when starting the engine, there is no leak except when I stop the engine and the pump is at a specific place.
Nothing is logical in this phenomenon,  if the pump rotates quickly, there is no trickle of water.
If you have an idea, I'm interested.
Thank you in advance 

Strange problem? Is it a new pump? If so I would return it, maybe the shaft is bent slightly or machined out of center causing the leak?

[JonH]

Coolant is leaking out of the weep hole, and just appears to be coming from the bolt. You could try a sealant in the cooling system, but I wouldn't. Get a new pump.