Hello,

I am in the middle of my timing belt replacement, and am about to put the new water pump in. The new Aisin pump came with a new (to me) type of gasket. It has a rubber seal built into a regular looking gasket. The old pump went on with just RTV.



My question is:
What is the best way to install this type of gasket? Do I just use the gasket alone or also use some RTV on the back side of it where it meets the block?

Also, what is the best way to prep the surface of the block for a nice long and leak-free seal? I removed all old gasket material with a scraper, and there is a little surface rust that should probably be removed from the sealing area.

Thank you all for your help!
Jason

 

Dude I can tell you to be sure and clean the inside of the bolt holes , because one time i did not and when i went to put the water pump on one of the holes had some water in it that i did not see and came out when i put the bolt on , i had to take the pump off clean evething out again.

 

Hey Jason,

You don't need any RTV with those types of gaskets. Just clean everything up well and use acetone or another non-residue solvent on the sealing surfaces and bolt it on. Makes changing it the next time a piece of cake--it's a great improvement. Take care,
Bugs

 

methyl-ethyl-ketone is a great solvent for cleaning your engine parts, hope you don't smoke though...

 

Guys-
Thank you so much for your replies.

I forgot all about MEK, that is the best solvent/cleaner I think I have ever used. Anyone using this stuff- Just make sure to wear gloves and inhale the fumes as little as possible... You don't want your future kids to have 3 heads....

Also, thanks for the info on the gaskets Bugs1961. I have never seen one like this. It sure does look like a well thought out and engineered design. Pretty cool.


Thanks again everyone!

Jason

 

Guys, do yourselves a favor. Go to Home Depot and buy a respirator ($30), some chemical/acid rubber gloves, and some chemical splash safety goggles. Get in the habit of wearing those whenever you are doing anything involving any chemicals. I used to work making custom fiberglass enclosures, and I have seen too many accidents and near accidents. $50 for the gear is cheaper than an emergency room visit, which isn't fun either.

 

I couldn't agree more. This is all very important advice to heed. I used to work in a Metallurgical Laboratory and was lucky enough to have access to all the proper training and safety equipment equipment. Some of the later now lives in my garage & has come in very handy.
Good posting.