Low oil pressure alarm?

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greigwill
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Joined: 3/28/10
Posts: 174
Low oil pressure alarm?

My 1990 25xp motor has no oil pressure alarm(that i know of)....I just bought(from Cata Direct)the high temp alarm sensor and alarm "horn" which i am preparing to install but since this is a 2 tone alarm,one for temp,the other for oil,i am wondering where the oil sensor might be on this engine(if it has one) Anybody know?

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"Sailing Still" 1990 C36 M25 wing
 Sail Canada/Transport Canada training
Gibsons Harbour BC
www.landsendbc.ca

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Steve Frost
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Joined: 12/14/07
Posts: 788

Mine is on the back side of the engine inboard of the exhaust manifold threaded into the block.

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Cepheus dream
C36 MK I # 825
MK I Tech Editor No Mas

greigwill
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Joined: 3/28/10
Posts: 174

and there it was,just like you said,thanks Steve.I hooked up the new alarm and it works!!Now for the hi temp sensor...

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"Sailing Still" 1990 C36 M25 wing
 Sail Canada/Transport Canada training
Gibsons Harbour BC
www.landsendbc.ca

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Steve Frost
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Joined: 12/14/07
Posts: 788

Grieg,

I did not have a temp alarm when I purchased my boat, a failed water heater hose cost me an engine. Diesels generate a lot of heat quickly if not cooled.
I did install the temp alarm after rebiulding my engine, a word of caution, I had assumed that the temp probe would have been preset to a fixed temp to trigger the alarm. I found that it is adjustable and yours may need to be adjusted after installation.

Steve

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Cepheus dream
C36 MK I # 825
MK I Tech Editor No Mas

greigwill
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Joined: 3/28/10
Posts: 174

I asked the catalina direct tech guy how i could test it and what the preset temp was...he didnt know.The little sensor doesnt look adjustable..like a little spark plug.I dont know how to test it,its installed now anyway..maybe boil it till voltage runs thru it?I had a bad scare with weeds in my strainer this summer,i just happened to look down at the temp gauge in time to see 190!!I dont want to repeat that experience.

—

"Sailing Still" 1990 C36 M25 wing
 Sail Canada/Transport Canada training
Gibsons Harbour BC
www.landsendbc.ca

mstuart1
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Joined: 7/1/12
Posts: 3

190 is not overheating.

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