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Water pump replacement pitted surface
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Topic: Water pump replacement pitted surface (Read 1756 times)
September 16, 2023, 12:07:01 pm
93Ford
Junior
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63
Water pump replacement pitted surface
«
on:
September 16, 2023, 12:07:01 pm »
So im ready to install the new water pump on my 85 jetta 1.6 NA but the o-ring surface on the block is pitted, should i put a thin layer of permatex no2 on the surface or use something else. Also do any of the bolts that hold down the water pump go into the water jacket and need sealent( Again should i use permatex no2) or are they all dry and dont need any.
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Reply #1
September 16, 2023, 10:03:19 pm
ORCoaster
Moderator
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4393
Personal Text
Restoring a Caddy as time and weather allows
Re: Water pump replacement pitted surface
«
Reply #1 on:
September 16, 2023, 10:03:19 pm »
Is there any way to get a wire wheel on a drill in there and clean up the pitted surface before you apply the sealant? There are many different-sized wire wheels and one that could get in the grooves would be best. I would slap some Permatex in there if I were you.
As far as I know, the bolts holding the pump on just go into the block and don't need to have sealant. But I would put some anti seize on the bolts in case you need to take it off again in the distant future.
Best of luck.
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Reply #2
September 17, 2023, 06:56:14 am
93Ford
Junior
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63
Re: Water pump replacement pitted surface
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Reply #2 on:
September 17, 2023, 06:56:14 am »
Yeah i already hit it with a wire wheel then a file then some sandpaper. So its clean and smooth its pitted a bit. Alright ill use some sealent on the flange and use anti sieze on the bolts. Just wanted to make sure as it was a nightmare to change this water pump so i dont want to be having to retake it all back apart because of a small mistake.
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Reply #3
September 17, 2023, 05:11:48 pm
sgnimj96
Junior
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166
Re: Water pump replacement pitted surface
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Reply #3 on:
September 17, 2023, 05:11:48 pm »
Filling the pits with JB Weld and sanding that smooth is a good solution, but that will take longer.
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81 Scirocco 1.6D (conversion) 86 Gofl 1.6D 2003 Golf Tdi 1985 300TD
Reply #4
September 17, 2023, 07:12:44 pm
93Ford
Junior
Offline
63
Re: Water pump replacement pitted surface
«
Reply #4 on:
September 17, 2023, 07:12:44 pm »
I ended up coating the whole flange in a medium layer of permatex, that combined with the o ring seal and it should seal HOPEFULLY.
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Reply #5
September 18, 2023, 01:51:34 am
fatmobile
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2746
Re: Water pump replacement pitted surface
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Reply #5 on:
September 18, 2023, 01:51:34 am »
Seems like I forget to put the "T" bolt in (for the timing belt cover) before putting the water pump back on.
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Last Edit: September 18, 2023, 09:31:15 pm by ORCoaster
»
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Tornado red, '91 Golf 4 door,
with a re-ringed, '84 quantum, turbo diesel, MD block
Reply #6
September 18, 2023, 02:56:54 pm
93Ford
Junior
Offline
63
Re: Water pump replacement pitted surface
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Reply #6 on:
September 18, 2023, 02:56:54 pm »
I dont think i ever saw a t bolt nor do i have one in my box of parts. How important is it.
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Reply #7
September 19, 2023, 12:32:19 am
fatmobile
Veteran
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2746
Re: Water pump replacement pitted surface
«
Reply #7 on:
September 19, 2023, 12:32:19 am »
The upper timing belt cover bolts to it.
So pretty important.
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Tornado red, '91 Golf 4 door,
with a re-ringed, '84 quantum, turbo diesel, MD block
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Water pump replacement pitted surface