Farymann Zeise generator engine

A

All_at_Sea

Well-Known Member
Joined
3 Aug 2005
Messages
1,399
Location
Hampshire
Visit site
I am gradually trying to get this working, so far good starter motor, good compression, engine turns over, fuel gets to the injector but not out of it. Just wondering if you need to bleed an injector pump to get it to flow through?

This may be beyond me if not so does anyone know of a good (cheap) engineer local to Portsmouth that might be able to look at it to assess whether it's worth continuing with?
 
You say the fuel gets to the injector. Is that at the connector at the injector on the head.

The injector pump is on the engine block by the dip stick.

I use a outboard priming bulb fo get fuel to the input of the injector pump. then disconnect the fuel line from the injector on the head and turn the engine over with the starter motor until squirts of fuel comes out of this pipe. I then tighten this pipe and the engine should start.

The only other thing that would not allow the engine to start if the fuel injection timing not being correct.
 
The fuel is at the beginning of the injector pump but doesn't come through the pump for some reason, maybe not enough pressure within the pump, but it all looks fine on the inside. On the outlet side of the pump there is a pressure valve which can't be opening although l have taken this to bits and it looks ok to the untrained eye.

The other oddity with this unit is that the speed control opposite the injector pump doesn't seem to move the forked arm very much, l'm wondering if something has broken inside somehow.......
 
If you flip the injector upside down so the nozzle points up then spin it on the starter, but keep the spray off and away from your skin.

This will confirm if the injector is passing fuel or not.

But if this is a Farymann 15W or 18W I would suspect a rusty or worn exhaust valve, this prevents the engine achieving sufficient compression.

Try pouring a couple of teaspoons of engine oil into the cylinder through the injector hole, replace the injector then try to re-start.

If it fires bad news - the oil is forming a temporary seal allowing the engine to start - head off and re-lap the valves.

Mine had rusty pitted seats so I had to fit a new seat and valve.

Good news is that the parts are quite cheap from Mitcham Diesels. If you want the manuals I have for the Farymann range PM and I will send you links.

Avoid marine suppliers for Farymann Parts unless you like paying a mark up factor of around 10.
 
Thanks superheat6k
Unfortunately the fuel is getting that far! It isn't coming out of the injector pump let alone the injector itself. I would be very grateful for a Manual for the Farymann, any exploded views would help me locate the problem possibly.
Model number 18W430. Type 0121. Trim M5. S/N 880208. Injector pump no. 2415 201017 S26.
 
All_at_Sea said:
Thanks superheat6k
Unfortunately the fuel is getting that far! It isn't coming out of the injector pump let alone the injector itself. I would be very grateful for a Manual for the Farymann, any exploded views would help me locate the problem possibly.
Model number 18W430. Type 0121. Trim M5. S/N 880208. Injector pump no. 2415 201017 S26.
Click to expand...

To get the fuel past the injector pump to the injector the engine must be turned over using the starter motor or starting handle. I do it with the starter motor. The control lever must be in the run position. My engine is a for a generator so it has a spring that automatically puts it in the start position.

In your earlier thread you spoke about the lever not moving the injector pump rack lever much, don,t forget its the governor that really controls the injector rack and without the engine running there will be very little movement in the injector lever when the operating lever is moved.
 
Rogershaw said:
To get the fuel past the injector pump to the injector the engine must be turned over using the starter motor or starting handle. I do it with the starter motor. The control lever must be in the run position. My engine is a for a generator so it has a spring that automatically puts it in the start position.

In your earlier thread you spoke about the lever not moving the injector pump rack lever much, don,t forget its the governor that really controls the injector rack and without the engine running there will be very little movement in the injector lever when the operating lever is moved.
Click to expand...
The governor in all old injector pumps is on full chat whilst the engine is stopped, as soon as it starts the governor sets the speed to wherever the throttle is set except if the stop control is jammed, in that case it wont start, the stop is overiding the governor. If the pump is not passing fuel, there is a possibility that the stop mechanism is jammed shut!
Check it.
S
 
skipper_stu said:
The governor in all old injector pumps is on full chat whilst the engine is stopped, as soon as it starts the governor sets the speed to wherever the throttle is set except if the stop control is jammed, in that case it wont start, the stop is overiding the governor. If the pump is not passing fuel, there is a possibility that the stop mechanism is jammed shut!
Check it.
S
Click to expand...

Yes I know that but the OP made a comment about the small movement of the fork that connects to the injector pump control lever when the outside speed/stop lever is moved. I checked on a spare farymann engine I have and the control lever does only move the injection fork a small amount. if the pad on the speed control arm that is moved by the centre pin of the governor that causes the injector pump lever to move the most.

The Farymann has an unique arrangement in this area, even with the manual I have is not that clear.

Its like the decompression mechanism not easy to see how it works even with the engine dismantled.

Manual for farymann engine
http://fischerpanda.com/marine-pdf/Farymann.pdf

http://www.manualslib.com/products/Farymann-Diesel-18w-3602251.html
 
Last edited by a moderator:
The control lever is in the run position (spring loaded) and l am using the starter motor to turn it over. Fuel just won't go through the injector pump and out the other side. I have taken the small inline control valve out and turned it over and fuel does come out so l am assuming not enough pressure being created within the pump mechanism. I don't know if this purely mechanical or is there a diaphragm in there somewhere?
 
You must log in or register to reply here.

Share this page

Top