Loctite 572 substitute

[Floridaman79]

I pulled the port side jet pump to remove some fishing line and the manual is calling for loctite 572 thread sealant. Permatex 592 seems to be a suitable replacement and is readily available and inexpensive. Has anyone here looked at this as an alternative?

 

[Floridaman79]

Just for fun, here's a pic of the fishing line. Even got wrapped around the back of the impeller which was the hardest part of the whole job.

 

[FLJetBoater]

I pulled the port side jet pump to remove some fishing line and the manual is calling for loctite 572 thread sealant. Permatex 592 seems to be a suitable replacement and is readily available and inexpensive. Has anyone here looked at this as an alternative?

It's interesting, in my manual there are 2 pages which reference the loctite on the long bolts holding the pump on. One page says LT572 and the other page says LT567. Anyone know why this would be or what the difference is?

 

[WREKS]

I have been using a product called Vibra-Tite 460. It is compatible with LT567. I think Permatex 592 will work as long as it is not high strength.

 

[Beachbummer]

You can get 567 at Amazon, and it works really nicely to lock the thread, seal and protect from galling. pretty neat product.

 

[FLJetBoater]

You can get 567 at Amazon, and it works really nicely to lock the thread, seal and protect from galling. pretty neat product.

Yeah I have some here. I was just curious if anyone knew why the service manual would call for different LT products on different pages for the same bolt

 

[Beachbummer]

Sure it's the same bolt? Maybe top vs bottom? Only half kidding. I hope it's a typo.

 

[FLJetBoater]

Sure it's the same bolt? Maybe top vs bottom? Only half kidding. I hope it's a typo.

Lol....it’s funny because the 572 isn’t in the identification page at the beginning, only 567 is so I assume that’s the correct one.
Do you really have to retighten the impeller to 238ft lbs or will it just naturally tighten as it’s used?

 

[Beachbummer]

My own experience only...

I give it tool tight, like 60ft lbs (what I would reasonably give a wheel lug)

So far so good. 200 is a lot.

 

[WREKS]

@FLJetBoater Where did you get 238 ft-lbs? My manual says 13 ft-lbs. That is over 18 times more. Better check the specs, again!

 

[FLJetBoater]

@FLJetBoater Where did you get 238 ft-lbs? My manual says 13 ft-lbs. That is over 18 times more. Better check the specs, again!

From here.....

 

[Beachbummer]

Weird, much lower on older SX230.

18 (EDIT: Newton Meters, I meant 13 ft-lbs, the low number on my manual) is not a lot, specially for how tight it is to remove, but 200+ is a LOT of strength with hand tools to get there.

 

[FLJetBoater]

Weird, much lower on older SX230.

18 is not a lot, specially for how tight it is to remove, but 200+ is a LOT of strength with hand tools to get there.

Yeah...18 is almost nothing. That's the same as the spark plugs in my boat.

I mean, if I can somehow hang from the breaker bar at like 15 inches, that would be pretty close to 238 ft lbs on the impeller

 

[WREKS]

@FLJetBoater @Beachbummer LOL. You misunderstood. 13 ft-lbs is the torque value. 238 ft-lbs is 18+ times that torque value.

 

[FLJetBoater]

@FLJetBoater @Beachbummer LOL. You misunderstood. 13 ft-lbs is the torque value. 238 ft-lbs is 18+ times that torque value.

ah I understand....18,13 either way - my manual says 238 ft lbs.

 

[WREKS]

@FLJetBoater That cannot be right. Must be in-lbs.

 

[FLJetBoater]

@FLJetBoater That cannot be right. Must be in-lbs.

I posted the pic above clearly says ft lbs.

not saying it’s right but I mean, they’ve had 6 years to fix it ....

 

[WREKS]

@FLJetBoater I see it, but it seems, as you implied before, it would just naturally tighten as it’s used.

 

[FLJetBoater]

@FLJetBoater I see it, but it seems, as you implied before, it would just naturally tighten as it’s used.

Yes it will since it’s reverse threaded. Also I like that it’s 238.7 as if that last .7 after 238ft lbs will make the difference between slipping or not I assume it’s the result of some specific engineering formula hence the decimal but in a practical sense I can’t imagine anyone is calibrating to the decimals when tightening at that high a torque.

 

[WREKS]

@FLJetBoater I agree. I wonder if the starter was hooked up in reverse and the timing switched from 1-4 to 4-1 if the impeller would spin off unless tightened to 238.7?