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Old 02-01-2012, 00:37   #16
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Re: Perkins 50 hp with limited revs.

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Originally Posted by Redcoat View Post
There is a fast idle screw and a overev screw on top of the pump,Check your manuel and adjust properly.
Thanks Redcoat & Delmaray
I think you have hit the nail on the head.

Thats the info I think I need.
I will study up and have a go at it tomorrow.

Any thoughts on why it may have been turned down so low?
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Old 02-01-2012, 04:58   #17
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Re: Perkins 50 hp with limited revs.

Can't say. But there is a sping in the top screw.Maybe its missing when bleeding the engine they say to back it off to get air out of the system.Also the wheel on your govemor has to be in the right position to get the full turn. If it idles right I would check the wheel first.The threads on the fast idle are very fine don't cross thread them.
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Old 02-01-2012, 15:13   #18
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Re: Perkins 50 hp with limited revs.

Just a quick one.
My motor is a series 104-22, I was hoping you could post a link to where you got your owners manual.
Thanks
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Old 02-01-2012, 15:38   #19
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Re: Perkins 50 hp with limited revs.

I just copied it off the address that is on the link.What year is the engine or what is the serial #.
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Old 02-01-2012, 16:40   #20
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Re: Perkins 50 hp with limited revs.

Sorry the more info the better. We all thought you were working on the 4-108.
This might work better.

Perkins Service 100 Series Diesel Engine Manual Workshop Service Repair Manual - Download Technical
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Old 02-01-2012, 16:44   #21
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Re: Perkins 50 hp with limited revs.

Is the prop fouled? My westebeke will not reach max rpm with a fouled prop.
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Old 02-01-2012, 17:00   #22
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Re: Perkins 50 hp with limited revs.

Quote:
Originally Posted by Hoohaa View Post
Just a quick one.
My motor is a series 104-22, I was hoping you could post a link to where you got your owners manual.
Thanks
Here's the best I can do for ya!>>> http://www.annatefka.com/perkins/ser...2_complete.pdf
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Old 07-01-2012, 18:36   #23
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Re: Perkins 50 hp with limited revs.

Thanks for all the good advice.
We have a 4 cylinder model series 100, 104.22.
Unfortunately we were not able to get a service manual for it and after talking to a marine mechanic, we chickened out. The mechanic is going to diagnose the problem when I am back from work.
Your help has been much appreciated and I will post the verdict when I find out.
Regards Jeff
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Old 07-01-2012, 18:54   #24
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Re: Perkins 50 hp with limited revs.

Stop lever not returning. Seized cable or solenoid?
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Old 09-01-2012, 05:06   #25
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Re: Perkins 50 hp with limited revs.

Cable is fine, the lever moves smoothly but stops or bumps against something inside before it can get anywhere near the adjustable bolt which is suposed to limit the revs.
ie. Same problem if the cable is connected and when the cable is disonnected.
What can you tell me about the solanoid?
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Old 09-01-2012, 11:29   #26
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Re: Perkins 50 hp with limited revs.

If the injector pump uses a cable or solenoid to return the rack to the zero fuel position then these could be sticking/seized. Later models use a solenoid to simply shut off the fuel supply. Can you attach a pic of the pump?
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Old 09-01-2012, 23:39   #27
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Re: Perkins 50 hp with limited revs.

NoTies
I have searched & searched for a Manual or photo on the net with no luck.
I will have to take some pics when back at the boat on 20th Jan.
In the meantime The Motor is A Perkins series 100, 104.22 DIN KR30332U-907649C.
Does anybody know wher I can get a workshop manual for this model?
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Old 10-01-2012, 00:56   #28
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Re: Perkins 50 hp with limited revs.

Managed to download a manual (thanks redcoat)
Here is a pic of a 3 cylinder version but it's the same as mine.
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Old 10-01-2012, 01:12   #29
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Re: Perkins 50 hp with limited revs.

If you use the key to stop the engine, try removing the stop solenoid and see if the problem goes away. If you use a cable to stop then disconnect and make sure the lever at the pump is moving. Either way, make sure the stop lever is not binding.
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Old 10-01-2012, 20:48   #30
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Re: Perkins 50 hp with limited revs.

The manual stop lever apears to move freely from memory, does it have any effect on the revs?
Also, managed to find an actual pic.
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