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wblakesx

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Since: Oct 11, 2005
Posts: 1



(Msg. 1) Posted: Tue Oct 11, 2005 5:50 pm
Post subject: simple diesel engine question
Archived from groups: rec>boats>building (more info?)

A friend bought a boat that had a diesel set in the boat, but not
hooked up. The motor was very stiff so I pulled the injectors, put in
penetrating oil, turned her by hand the next day, then on the starter
and she loosened up alot; but little fuel came out of the
inj pump. I tried again with the two levers on the side of the inj pump
in various positions but still only a very minimal amount of fuel. Am I
missing something?

Further I guess I should have some concern about cylinder surfaces. I
plan to run her abit, and if she doesn't overheat, do a leakdown test.
Any comments?

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Matt Colie

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Since: Aug 27, 2005
Posts: 11



(Msg. 2) Posted: Wed Oct 12, 2005 10:52 am
Post subject: Re: simple diesel engine question [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)

Wblakesx,
I am a bit puzzled.
If you are looking at the high pressure fuel lines that go to the actual
injectors, how much fuel did you expect?
The amount of fuel injected per cycle is measured in MICRO(10e-6)liters
or cubic millimeters and it is a small number.
Matt Colie

wblakesx wrote:

> A friend bought a boat that had a diesel set in the boat, but not
> hooked up. The motor was very stiff so I pulled the injectors, put in
> penetrating oil, turned her by hand the next day, then on the starter
> and she loosened up alot; but little fuel came out of the
> inj pump. I tried again with the two levers on the side of the inj pump
> in various positions but still only a very minimal amount of fuel. Am I
> missing something?
>
> Further I guess I should have some concern about cylinder surfaces. I
> plan to run her abit, and if she doesn't overheat, do a leakdown test.
> Any comments?
>

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dazed and confuzzed

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Since: Jul 09, 2005
Posts: 32



(Msg. 3) Posted: Wed Oct 12, 2005 10:52 am
Post subject: Re: simple diesel engine question [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)

Matt Colie wrote:

> Wblakesx,
> I am a bit puzzled.
> If you are looking at the high pressure fuel lines that go to the actual
> injectors, how much fuel did you expect?
> The amount of fuel injected per cycle is measured in MICRO(10e-6)liters
> or cubic millimeters and it is a small number.
> Matt Colie
>
> wblakesx wrote:
>
>> A friend bought a boat that had a diesel set in the boat, but not
>> hooked up. The motor was very stiff so I pulled the injectors, put in
>> penetrating oil, turned her by hand the next day, then on the starter
>> and she loosened up alot; but little fuel came out of the
>> inj pump. I tried again with the two levers on the side of the inj pump
>> in various positions but still only a very minimal amount of fuel. Am I
>> missing something?
>>
>> Further I guess I should have some concern about cylinder surfaces. I
>> plan to run her abit, and if she doesn't overheat, do a leakdown test.
>> Any comments?
>>
>
could be he has an airlock in the fuel lines.

--
“No battle plan survives first contact with the enemy”
Sun Tzu
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James2

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Since: Jul 04, 2003
Posts: 56



(Msg. 4) Posted: Wed Oct 12, 2005 12:35 pm
Post subject: Re: simple diesel engine question [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)

"wblakesx" <wblakesx.RemoveThis@yahoo.com> wrote in message
news:1129078227.535150.109730@g47g2000cwa.googlegroups.com...
>A friend bought a boat that had a diesel set in the boat, but not
> hooked up. The motor was very stiff so I pulled the injectors, put in
> penetrating oil, turned her by hand the next day, then on the starter
> and she loosened up alot; but little fuel came out of the
> inj pump. I tried again with the two levers on the side of the inj pump
> in various positions but still only a very minimal amount of fuel. Am I
> missing something?
>
> Further I guess I should have some concern about cylinder surfaces. I
> plan to run her abit, and if she doesn't overheat, do a leakdown test.
> Any comments?
>
The fuel in the injector pump has dried up and the sediment left behind is
clogging it up.
the pump will almost certainly have to be stripped down, cleaned and
recalibrated.. not an easy or cheap task... but it wont work till its done.
Sorry
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