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Water pump use sealant or not?
#1
Hey guys,

changing the water pump on my 1.4i kfw it says in the instructions that came with the pump to use sealant but wasn't sure weather that info is correct?
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#2
It can't hurt to put a thin smear on can it.


.
My vehicle .... 2006 (m59) Berlingo Multispace Desire - 1.6 HDI 92 
[-] The following 1 user says Thank You to jj9 for this post:
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#3
(30-04-2020, 03:21 PM)jj9 Wrote:  It can't hurt to put a thin smear on can it.


.

No I suppose not but I don't have any so wondered if it was necessary? I don't think it is but just wondered if anyone had not used sealant and had any problems. It comes with an o ring and the instructions are generic.
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#4
I had exactly the same question late last year, I called the pump manufacturers (INA) & was told that if I had an unused steel crush gasket that came with the pump, then no sealant was needed, but if no gasket then a small amount is fine. I had the gasket, but used a small smear as well as the gasket to be sure & all is fine.
The argument against sealant is that by using too much, some can come loose in the water flow & get caught around the impeller.
An o-ring is probably fine on it's own, but again a small smear of sealant probably won't hurt IMHO
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#5
(30-04-2020, 04:25 PM)cancunia Wrote:  I had exactly the same question late last year, I called the pump manufacturers (INA) & was told that if I had  an unused steel crush gasket that came with the pump, then no sealant was needed, but if no gasket then a small amount is fine. I had the gasket, but used a small smear as well as the gasket to be sure & all is fine.
The argument against sealant is that by using too much, some can come loose in the water flow & get caught around the impeller.
An o-ring is probably fine on it's own, but again a small smear of sealant probably won't hurt IMHO

Thanks. I think I will just go ahead and not use sealant as I don't have any. I;ve been waiting a week for the parts and didn't order and sealant as I thought I had some if needed. I don't really want to wait another week so will give it a go and report back as to what happened.
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#6
(30-04-2020, 06:35 PM)frostyberlingo Wrote:  
(30-04-2020, 04:25 PM)cancunia Wrote:  I had exactly the same question late last year, I called the pump manufacturers (INA) & was told that if I had  an unused steel crush gasket that came with the pump, then no sealant was needed, but if no gasket then a small amount is fine. I had the gasket, but used a small smear as well as the gasket to be sure & all is fine.
The argument against sealant is that by using too much, some can come loose in the water flow & get caught around the impeller.
An o-ring is probably fine on it's own, but again a small smear of sealant probably won't hurt IMHO

Thanks. I think I will just go ahead and not use sealant as I don't have any. I;ve been waiting a week for the parts and didn't order and sealant as I thought I had some if needed. I don't really want to wait another week so will give it a go and report back as to what happened.

A thin smear of grease is OK.
Strawberry flavoured windows  Dodgy
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