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Old 09-28-2013, 08:50 AM   #1
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Waterpump

Going to replace the waterpump on my 91.should I use rtv or some kind of silicone for gasket?i hear some say yes and some say you don't need it.what are your thoughts?
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Old 09-28-2013, 09:09 AM   #2
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I think if it comes with a gasket you may use some to keep the gasket in place. if it doesn't come with a gasket then I think youre supposed to use rtv. im not 100% tho
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Old 09-28-2013, 09:16 AM   #3
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It came with gasket.the salesman said I didn't need it but I don't want it to leak
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Old 09-28-2013, 09:23 AM   #4
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most people just use rtv to keep the gasket n place while installing
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Old 09-28-2013, 01:40 PM   #5
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I always use rtv. Better to be safe then sorry. It def wont hurt anything
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Old 09-28-2013, 01:44 PM   #6
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Definitely use some rtv
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Old 09-28-2013, 03:56 PM   #7
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Changing it out Tom and I'll stop and get some on the way home.thanks for the input
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Old 09-28-2013, 07:53 PM   #8
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Use the gasket with the thinnest possible layer of copper or black RTV to hold it in place and get a good seal.

Most important part is to make sure you clean ALL the old gasket and any RTV off the block and do NOT use a paint scraper or goober it up with a razor blade like I've seen too many ppl do.
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Old 09-28-2013, 08:47 PM   #9
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Was going to use a plastic scraper.dont want to scratch or booger anything up.what should I use?
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Old 09-28-2013, 09:14 PM   #10
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A plastic scraper like as in a composite RTV remover? We use them for removing B half and B2 sealant on aircraft without scratching up the surrounding area. You can use a razor blade but go very gently and try to make sure its as flush as possible. Seen too many where some idiot just dug in the razor blade and nicked it up all over or used a paint scraper and really goobered it.
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Old 09-28-2013, 09:31 PM   #11
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I'll be gentle.dont want more work than what should be involved.my concern is that the bolts aren't locked up.i sprayed pb blaster on them so hope that helps
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Old 09-28-2013, 09:34 PM   #12
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I did an original pump on a 91 GT awhile back and just gotta have a long breaker bar and gently apply pressure till you hear them break loose.
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Old 09-28-2013, 09:35 PM   #13
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It's original pump.figured it would be stuck on good.may use a rubber mallet to help break it loose
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Old 09-28-2013, 09:41 PM   #14
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Yep, tap, tap, taperoo on it with a smallish rubber mallet and it should come right off.
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