Manifold presure check

foresteronw

Petty Officer 3rd Class
Joined
Oct 29, 2002
Messages
76
I am looking for information on presure checking manifolds and risers. I have called in my area and nobody around here does it. I have a 1989 Sunbird with an OMC 350 engine. I am trying to figure out how to get these checked. If anyone has done this themself could you please tell me how you did it. THanks.
 

echozulu

Seaman
Joined
Jun 12, 2003
Messages
69
Re: Manifold presure check

if youve been running in saltwater i would float test rather than pressure test you didnt say why you felt they needed testing probably overheating or slurping seawater
 

sea wolf

Lieutenant Junior Grade
Joined
Apr 3, 2002
Messages
1,219
Re: Manifold presure check

check with an engine rebuilder in you're area. a lot of boat shops send them out for this test.
 

Trent

Captain
Joined
Nov 17, 2001
Messages
3,333
Re: Manifold presure check

Flashback......I THINK he is talking about putting the boat in the water and letting it sit. Then checking for water in the oil or cylinders. It works somtimes. But not like a pressure check. Its sort of a poor mans way to check. If I was going to do a poor mans check I would take the manifolds off and pour gas into them and watch for leaks where they should not be. Fuel will seep where water will not. We use it in aviation every day for a quick check.
 

flashback

Captain
Joined
Jun 28, 2002
Messages
3,987
Re: Manifold presure check

Thanks Trent, it seems like a hit or miss way of doing things to me... the gas in the manifold will work...... gas has little surface tension and will find it.s way thru almost anything that has a crack in it ...........almost.........
 

echozulu

Seaman
Joined
Jun 12, 2003
Messages
69
Re: Manifold presure check

jezz flashback, you drop it in the water if it floats its good....
 

sea wolf

Lieutenant Junior Grade
Joined
Apr 3, 2002
Messages
1,219
Re: Manifold presure check

float test on an 89 manifold used in salt? throw it over the side & see if it floats! heh, heh, heh. ;)
 

sea wolf

Lieutenant Junior Grade
Joined
Apr 3, 2002
Messages
1,219
Re: Manifold presure check

hey echozulu, u beat me by a minute! :)
 
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