Port manifold cool, starboard little warm

Hoosmatroos

Hoosmatroos

Petty Officer 1st Class
Joined
Jul 11, 2011
Messages
250
Hello,

My engine runs great, lots of power, starts good, runs good oil pressure (40psi), doesn't overheat and so on. Yesterday I noticed, when I docked my boat, that my port manifold is cool but starboard is a little warm. Not hot but slightly warm. Is it normal that there is a difference or is this indicating a possible problem? If so, what should I look into first?

Martin
 
Don S

Don S

Honorary Moderator Emeritus
Joined
Aug 31, 2004
Messages
62,321
Re: Port manifold cool, starboard little warm

Quite normal. Especially if on muffs or idle rpm.

Curious, How old is the impeller?
 
A

agallant80

Commander
Joined
Oct 25, 2010
Messages
2,328
Re: Port manifold cool, starboard little warm

I had the same thing happen on my new boat. Ideling at the dock one manifold was warmer than the other, Well I would go as far as to say that one was cool and the other was warm. When i ideled the motor up the temp evened out.
 
Hoosmatroos

Hoosmatroos

Petty Officer 1st Class
Joined
Jul 11, 2011
Messages
250
Re: Port manifold cool, starboard little warm

Don, impeller is new (changed last spring). Last 5 minutes back to the port is at idle so engine can cool down.

Agallant80, same here. I will check next time after some cruising but it caught my attention. I check everything before I go off and when I'm back. Checked the temp on the manifolds and noticed the difference.

Thanks so far.
 
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