metal lined slurry pump selection calculation pdf

Water Pump Torque Specifications???

MattEakins

I seem to not be able to find torque specs for the water pump. The bolts I have a question about have a number 7 on them and they are 10mm in size. Does anyone know the torque for these?

GTXSupra

According to the TSRM, they should be 13 ft. lbs. Hope this helps.

turbotoy

I show 8 lb-ft per the TSRM and my reference books. Class 7T M6 x 1mm hexagon head.

GTXSupra

Interesting......cooling sysem page CO-7 and the torque spec page A-11 of my 1988 manual both show 13 lbs.

MattEakins

13lbs it is...thanks!

turbotoy

Wow, interesting... This shows 78 lb-in (6.5 lb-ft). This shows 8 lb-ft. 80 lb-in is generally the torque I spec in my designs at work when using standard A2 metric harware, which is why I immediatly questioned the 13 lb-ft spec. I have a TSRM for the 87 at my shop, I'll have to check out what it says tomorrow. You really don't need to torque this fastener though, just get it snug and you'll be set. Use a standard length boxed end wrench and you'll probably get darn close to the correct torque.

MattEakins

I torqued them down to 8 ft-lbs to start and then I tried going up with one, but I stopped because it didn't get any tighter. So I believe the 8 ft-lbs is correct. Thanks.

GTXSupra

That is too weird that my TSRM says 13lbs.....on two different pages. I have never actually used a torque wrench on a water pump, usually just snug the bolts down like Turbotoy says. I'm curious to see what his 87 manual says.....

bjacques

It's going into a solid iron block, and the bolts are plenty strong. Just make sure you use a hand tool, and you won't overtighten them. There are two threaded aluminum pins on top and bottom of the waterpump. These are the only things to watch out for. I've never damaged them with a hand tool, but I did strip them when I forgot about them once and used an air ratchet. BTW, the aluminum pins are replacable.

MattEakins

it took like nothing to get them tight. I was amazed myself, but 8ft/lbs seems to be correct.

toml

Sorry to bring up a REALLY old thread, but I'm just in the process of putting my water pump back on and was looking for the right torque specs. My bolts just seem to keep turning in there, they don't get much tighter. Any ideas if that's normal or if my bolts/threads are screwed? Thanks.

Apexi287

sounds like there stripped/fucked...8ft/lb isnt much they would get tight quick..id check the thread on both the block and bolts..

2jzMK3

until its tight!

toml

Yup, I've just re-threaded the holes on the timing belt case and bought all new bolts - working much better now.