I would rebuild this engine if:
1. you have a sense that the boat has been well maintained, namely the
engine zinc has been routinely replaced. Yanmar added a small amount of
nickel (or was it chromium?) to the cast iron for their marine blocks, this
and the zincs, were seen as
Original message
From: DON JONSSON via CnC-List <cnc-list@cnc-list.com>
Date: 9/27/17 5:34 PM (GMT-05:00)
To: cnc-list@cnc-list.com
Cc: DON JONSSON <dbjons...@shaw.ca>
Subject: Stus-List 3GMD engine blow back
Hi
I continue to try and understand what is wrong with my en
I had a season where my rings got stuck. Compression measured 155, 165,
425. The crankcase was so heavily pressurized that the dipstick blew out.
Ultimately I was able to "unstick" the rings by putting penetrating oil (PB
blaster) in the cylinders and hand rolling the engine daily for a week.
Don,
Just went through all of this same BS with a Yanmar 3GM30F that we
installed in 1986. After 8,793 hours it was simply worn out and not worth
the costs to rebuild an old motor. So, I bought a new Yanmar 3YM30AGE and
we will install it next week. Hopefully the new Yanmar will give me (or the
Check to see whether the oil leak is coming from your dipstick. If it's
loose, that's probably the source.
Alan Bergen
On Wed, Sep 27, 2017 at 2:33 PM, DON JONSSON via CnC-List <
cnc-list@cnc-list.com> wrote:
> Hi
>
> I continue to try and understand what is wrong with my engine without
>
On Wed, Sep 27, 2017 at 4:56 PM Bill Dakin via CnC-List <
cnc-list@cnc-list.com> wrote:
> Sounds like rings to crankcase blow by to me. Does this engine have a
> breather on the side of the crankcase? My IHC Cub engine, essentially an
> Atomic 4, has this breather that before my restoration,
Sounds like rings to crankcase blow by to me. Does this engine have a
breather on the side of the crankcase? My IHC Cub engine, essentially an
Atomic 4, has this breather that before my restoration, would emit blow by
gasses. There is no other source of pressure to emit oil or gas. You
could
Hi
I continue to try and understand what is wrong with my engine without paying
more good money. And I have started looking for a new motor.
First the problem. The engine recently started to leak a fair amount of oil
and to start poorly. We spent a lot of time trying to find exactly where
