Coytee Posted June 26, 2016 Share Posted June 26, 2016 I have a 2005 camry. Looks like the water pump is starting to die. (rattling noise when engine running and when belt is taken off, there is noticable wobble in the shaft) So far, it's working fine. I have new pump in hand, new belt in hand. Plan to install new pump tomorrow. Pump came with a paper type gasket. Guy at store said he would probably not use any sealer.... just a dab here & there to hold the gasket during assembly. I watch a You-Tube guy replacing it....he globs liquid gasket all around, not using the paper gasket at all. What say you & why? (I have not yet taken it apart to see if there is a gasket or sealant in there) Quote Link to comment Share on other sites More sharing options...
Karsoncookie Posted June 26, 2016 Share Posted June 26, 2016 I'm not a pro mechanic, but have done my share. American made 60s to 80s my experience. So I'm giving an opinion based on that. On a water pump, how can sealant hurt? I would put a thin coat on both sides of gasket. Why not ? Lars Quote Link to comment Share on other sites More sharing options...
Karsoncookie Posted June 26, 2016 Share Posted June 26, 2016 Of course, make sure there is no sealant or gasket residue on the engine side when you put the new one on. But you know that. Lars Quote Link to comment Share on other sites More sharing options...
Coytee Posted June 26, 2016 Author Share Posted June 26, 2016 I'm with you on the American made engines (Chevy & Olds) This thing is a bugger to reach too. Nothing like the 455 my Olds 442 had. Quote Link to comment Share on other sites More sharing options...
Karsoncookie Posted June 26, 2016 Share Posted June 26, 2016 One last thing - very important - A "guy I know" once bought himself an unexpected engine rebuild after replacing his antifreeze on a late 90s chrysler minivan. It turned out, some of these newer import cars have an issue where they need to be purged of air, unlike old school engines. Google it. Lars Quote Link to comment Share on other sites More sharing options...
Karsoncookie Posted June 26, 2016 Share Posted June 26, 2016 (edited) I guess the chrysler was not import, but nevertheless not a "normal" engine like Grandpa had. Lars Edited June 26, 2016 by Karsoncookie Quote Link to comment Share on other sites More sharing options...
USNRET Posted June 26, 2016 Share Posted June 26, 2016 My 2 cents: if the mating surfaces are free of scratches and corrosion voids (good machined surfaces) then a sealant is not required. I use a very thin layer of grease on the pump side just to hold the gasket in place. If there are voids I use 3M weather strip glue (gorilla snot) but it's a biatch to remove next time. 1 Quote Link to comment Share on other sites More sharing options...
Karsoncookie Posted June 26, 2016 Share Posted June 26, 2016 So my thought is - Sealant MAY not be required, but it can only help. If you assemble w/o sealant, and a seeping leak shows up, then what? Only argument against it is future dissasembly difficulty, which will vary depending on the specific sealant used. Just my experience talking. I will assume you have validity though, figuring you have the aircraft experience that is higher test. Lars Quote Link to comment Share on other sites More sharing options...
Schu Posted June 26, 2016 Share Posted June 26, 2016 (edited) RTV... use it if you have any sharp edges or angles on your face mating surfaces, otherwise not necessary. Edited June 26, 2016 by Schu Quote Link to comment Share on other sites More sharing options...
Karsoncookie Posted June 26, 2016 Share Posted June 26, 2016 Also, keep in mind, a mating surface on a $1000 part possibly probably is smoother flatter than a $80 water pump. Lars Quote Link to comment Share on other sites More sharing options...
Karsoncookie Posted June 26, 2016 Share Posted June 26, 2016 Why tempt the devil w no sealant, then have to possibly use somekinda "stopleak" that is not good, potentially, overall ? Lars Quote Link to comment Share on other sites More sharing options...
oldtimer Posted June 26, 2016 Share Posted June 26, 2016 The only caveat I have heard is if you are not careful, and use too much, a glob can come free and clog up the works inside which is not a good thing. Quote Link to comment Share on other sites More sharing options...
mungkiman Posted June 26, 2016 Share Posted June 26, 2016 The only caveat I have heard is if you are not careful, and use too much, a glob can come free and clog up the works inside which is not a good thing. You sound like my doctor... Quote Link to comment Share on other sites More sharing options...
USNRET Posted June 26, 2016 Share Posted June 26, 2016 another thing I forgot to add in my response: I look at the 'gasket' itself; is it thin / brittle or thicker / supple? Thin / brittle gets sealant. Quote Link to comment Share on other sites More sharing options...
Karsoncookie Posted June 26, 2016 Share Posted June 26, 2016 The only caveat I have heard is if you are not careful, and use too much, a glob can come free and clog up the works inside which is not a good thing. Definitely true, but I think a Duhh ! Darwin award kinda thing. Lars Quote Link to comment Share on other sites More sharing options...
WMcD Posted June 26, 2016 Share Posted June 26, 2016 When I replaced a pump on a Toyota a long time ago there was a paper gasket and I used the varnish recommended by the shop. I would think that using something like RTV would really make it difficult to remove. WMcD Quote Link to comment Share on other sites More sharing options...
Karsoncookie Posted June 26, 2016 Share Posted June 26, 2016 (edited) Actually, RTV Silicone is easier to remove than more obviously petroleum products like a few different Permatex products. Talkin about that black gooey sticky stuff. Lars Edited June 26, 2016 by Karsoncookie Quote Link to comment Share on other sites More sharing options...
Bossman Posted June 26, 2016 Share Posted June 26, 2016 I would put a thin layer of sealer on both sides of the gasket.. this is much better than gobbs of sealer with no gasket. 1 Quote Link to comment Share on other sites More sharing options...
USNRET Posted June 26, 2016 Share Posted June 26, 2016 in the aircraft world we use P.E.T. which is a long winded acronym for technical Vaseline. Quote Link to comment Share on other sites More sharing options...
rebuy Posted June 26, 2016 Share Posted June 26, 2016 (edited) If it's a 2.2 and you're going in there---You should have been told to replace the oil pump and seals while you have it apart. Since it's a fairly tight space and not one you'd want to do everyday---The water and oil pump with the timing belt should be the job you're aiming to do for a one time repair. Checking the belt tensioners wouldn't be a bad idea either. If you do not replace the oil pump--it's a good idea to replace the oil pump seals since they leak at that location on that car as they get older. As far as replacement parts--- Aisin Parts work best and last the longest. Edited June 26, 2016 by rebuy Quote Link to comment Share on other sites More sharing options...
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