1944 MFV is powered by a Phoden 6cyl diesel engine 1

[foden]

My 1944 MFV is powered by a Phoden 6cyl diesel engine.
When I go forward, she purrs ok. As soon as I go astern, she just cuts out.
I and a reputable engineer have had a look and we could not find a solution.
It seems as though there can be a ready answer, she still starts and runs. I am boggled.

Is there anyone out there who can help me. I am desperate as the boat is my main source of income.

Please assist if you can

Adrian

 

[PackardV8]

Greetings, Adrian,

There is not enough information to help with troubleshooting. Admittedly, a Phoden is unfamiliar to me, but few diesels reverse engine rotation.

However, if it is not a reversing engine rotation design and if the engine starts, idles and runs in forward, but dies when reverse is engaged, the problem lies in your clutch/and/or/transmission.

thnx, jack vines

 

[foden]

Thanks, that has made me look from a different perspective.
I will mull over it.

 

[WGJ]

Phoden? Do you mean Foden?

Bill

 

[foden]

I am in fear of a major catastrophe like perhaps having to replace the engine. if the clutch and/or transmission is indeed the problem, is there an affordable way to fix it?

 

[foden]

oops!
yes Foden

 

[foden]

Ok
she idles, goes forward, but stalls as she is put in aft.

Sugg.1: if it is not a reversing engine rotation design and if the engine starts, idles and runs in forward, but dies when reverse is engaged, the problem lies in your clutch/and/or/transmission.

Sugg2 : The gear box would be my first guess as well

Sugg3 : Is there a neutral kill switch on you shifter? May only be an adjustment

I like the sound of suggestion #3 - one can only hope

 

[larrylcoyle]

The first mistake you made is when you had a engineer look at the problem. (No offense guys) What you need to do is to find someone with actual work experience on this beast. As Jack and others have said, the most likely problem is in the gear box. It sounds as though you might have two gears engaging at the same time when you put it in reverse. To eliminate downtime, find an experienced mechanic.

Larry

 

[patprimmer]

Larry

Foden is an old English brand. The English have a wider use of the word engineer that to Americans. Engineer might mean a repair man.

Another possibility is a packing gland seal is tightening itself up and biding on the shaft in reverse. Without seeing the gearbox,selecting both forward and reverse simultaneously is most likely. It should be a simple linkage repair r adjustment to fix that. Maybe only freeing up a rusted solid part.

Regards
Pat
See FAQ731-376 for tips on use of eng-tips by professional engineers &

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[patprimmer]

Another possibility is a lose selector fork. Does it select neutral by disengaging forward, or does forward stay engaged and a seperate dog clutch disengages for neutral?

Regards
Pat
See FAQ731-376 for tips on use of eng-tips by professional engineers &

http://eng-tips.com/market.cfm

for site rules

 

[Zapster]

I have no idea of the type of transmission that you have on your boat. So I am unsure if this will help. Some manufacturers of marine transmissions that use pawls to engage forward/reverse with a gearbox have a switch that interrupts the ignition system to unload the pawls such that the transmission can be easily shifted between forward and reverse. These transmissions have no clutches and bang into gear and between gears. The ignition interrupts if there is loading on the shift selector cable. If you have this type of a system look for a small electrical mico switch on the transmission linkage. The ignition interruption unloads the transmission making it easy to shift.

 

[dicer]

I have some questions.

1 Does it have a transmission?
2 Have you tried to throttle the engine up and make some more power when you do this reverse shift, that is if it is a transmission?
3 If it is a transmission why would an engineer suspect the engine if it goes real good in the forward selection?

Maybe the idle speed is way too low, and if this is a transmission that is a direct for forward and a gear set for reverse, it is going to take more power to reverse than go forward, cause you have a gear set to move, thick oil and all that.

 

[foden]

Wow
Thanks for all the help, will be on it 1st thing in the morning.