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Connecting pipe oring replacement (water pump side)

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Old 07-20-2018, 03:11 AM
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Default Connecting pipe oring replacement (water pump side)

So I have this coolant leak for the last month. I’ve tried sanding the hole and replacing the oring multiple times and it’s still leaking.

With the OEM o-ring it’s a bit oversized so whenever I try to install it the ring gets pinched and since it’s such a tight squeeze I can’t use both hands.

Advancd auto o ring fits perfect but gives me a slow leak :/

i replaced the pipe pipe as well

so frustriting i don’t know what to do.

seems like an easy fix but I’m pulling my head out with this.
Old 07-20-2018, 04:43 AM
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Default Re: Connecting pipe oring replacement (water pump side)

put what fits and put RTV glue around the oring. works everytime
the oring that is too big...try out putting it on your pipe then in a freezer for a few hours to shrink...
Old 07-20-2018, 05:16 AM
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Default Re: Connecting pipe oring replacement (water pump side)

Originally Posted by rick_rabies
put what fits and put RTV glue around the oring. works everytime
the oring that is too big...try out putting it on your pipe then in a freezer for a few hours to shrink...

should I let it dry around the oring first or wait until I install it?
Old 07-20-2018, 07:18 AM
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Default Re: Connecting pipe oring replacement (water pump side)

Its oversized for a reason. Put some coolant on the o-ring to lub it up and slide the water log back in.
Old 07-20-2018, 09:42 AM
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Default Re: Connecting pipe oring replacement (water pump side)

Originally Posted by tony_2018
Its oversized for a reason. Put some coolant on the o-ring to lub it up and slide the water log back in.
easier said than done
Old 07-20-2018, 12:04 PM
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Default Re: Connecting pipe oring replacement (water pump side)

I've done it before and that is how I know.
Old 07-20-2018, 04:25 PM
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Default Re: Connecting pipe oring replacement (water pump side)

Originally Posted by tony_2018
I've done it before and that is how I know.
I’ve been using grease and it either gets pinched or pops off the pipe. How did you do it?
Old 07-20-2018, 05:17 PM
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Default Re: Connecting pipe oring replacement (water pump side)

Give me details on how you re-installed. I didn't use any grease.
Old 07-20-2018, 05:44 PM
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Default Re: Connecting pipe oring replacement (water pump side)

Originally Posted by tony_2018
Give me details on how you re-installed. I didn't use any grease.
so I’ll have all the hoses disconnected from the thermostat housing. The breather box will be disconnected as well. I’ll slide the water pump side in first and then it ends up getting pinched from the side of the block, each time.
Old 07-21-2018, 09:20 AM
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Default Re: Connecting pipe oring replacement (water pump side)

You haven't even given details on the engine or car, love the guess work...

Clean up the area where the water log goes in very well, install big o-ring on water log, lub water log with coolant (drench it), lube up the opening where the water log goes in (I added this step in), slide the water log into the opening and rock it up and down while putting force onto it to get it in. thermostat housing same way.
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