The mechanic took a quick look on Friday and felt it was a fuel
issue....maybe dirty filters (although the tank was out of the boat 2
years ago and pressure cleaned, both primary and secondary fuel filters
changed at the same time).
Chuck, I did that myself (didn't repair the bottom of the tank) but
everything else....emptied the fuel tank of 15 gallons of diesel
(donated it to the club's tractor), took the tank to a machine shop
where they repaired the two pin holes, put it back in, new fuel and new
fuel filters.
The mechanic did notice some diesel leaking from a line fitting going
into the small Yanmar fuel filter.... said a quarter inch tightening
might solve the problem as this might be an air leak.
When I said earlier the engine has not been serviced in 16 years, I
meant it had not had a diesel mechanic service it.....I do an oil change
every Fall, fuel filters changed regularly, have replaced all the engine
hoses, air filter, water and alternator belts, water pump impellers,
etc. This work i do myself but when it comes to more complicated
things, \i will leave that to the mechanics who know what they are doing
(or should)
If it something like dirty or failed fuel injectors, a failed fuel pump,
etc, etc, best the mechanic diagnose the problem and fix it.
Rob Abbott
AZURA
C&C 32- #277
Halifax, N.S.
On Sun, Jun 26, 2022 at 10:03 AM Novabraid via CnC-List
<cnc-list@cnc-list.com> wrote:
Rob,
Recommending two things:
1. Change both filters and perform this task annually (or more
often if your source of diesel is questionable.)
2. Find out if your mechanic is willing to have you “help” perform
the filter change as it will likely be the first thing he’ll want
to do. You really need to learn how to make filter changes and to
learn how to bleed the fuel system once a filter has been changed.
Changing the fuel filters will reveal a lot since you’ll be able
to see what’s contaminating the fuel system or causing a blockage.
Its conceivable that your primary (or lift) fuel pump that brings
fuel to the engine from the fuel tank may have a worn or leaky
diaphragm. Look for traces of diesel around the edges of the pump
housing. An easy fix but harder to diagnose if you can get the
engine to run a full speed after you change the filters.
Not sure what marine education options are available in Halifax
but its always good to think about taking a marine diesel course
for peace of mind. I did it about 5 years ago at Annapolis School
of Seamanship and it’s given me confidence to do some basic
problem solving and service myself.
Chuck Gilchrest
S/V Half Magic
1983 Landfall 35
Padanaram, MA
*From:* Robert Abbott via CnC-List <cnc-list@cnc-list.com>
*Sent:* Sunday, June 26, 2022 9:38 AM
*To:* cnc-list@cnc-list.com
*Cc:* Robert Abbott <robertabb...@eastlink.ca>
*Subject:* Stus-List Yanmar 2 GMF
Went to take the boat out Friday for a short sail .....motoring
out heading into a12 knt breeze....started to increase the RPM's
and found the engine wouldn't rev about 2,100 RPM's ....marine
diesel's are not supposed to be that complicated but they are to
me. I wouldn't know where to start to trouble shoot....getting a
mechanic to deal with it this week. I spoke to him and told him
the situation and he thinks it is a fuel problem....engine not
getting enough fuel....my fuel tank and fuel should be clean as I
had the bottom of it replaced 2 years ago and the 2 fuel filters
replaced. He thinks one or both of the filters are restricting the
fuel flow.....I hope he is right but I don't think so.
Possibly many are causes....restricted fuel injectors, fuel pump,
etc. ....the engine has never been serviced in the 16 years I
have had the boat
Any insight or guidance to help greatly appreciated.
Rob Abbott
AZURA
C&C 32 - #277
Halifax, N.S.
--
Joel Delamirande
*www.jdroofing.ca <http://www.jdroofing.ca>*
