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Mon, May 23 2022, 14:39Login ] [ Contact Forum Admin ] [ Main index ] [ Post a new message ] [ Search | Check update time | Archives: 123456[7]8910 ]

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Date Posted: - Friday - 02/23/07 - 4:53pm
Author: Steve B
Subject: Perkins 4.107

I bought a M31 recently. It sat for years on blocks, the hour meter on the engine only has less than 500 hours on it. I was assured by the previous owner that the motor was hardly ever run and in original condition. Before I put it in the water, I want to be sure the motor is in reliable shape. What would be your suggesiton. If it was properly stored, could I attempt to start it up and see what happens or would you suggest that I do a minor rebuild, gaskets, injectors etc.

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[> The worst -- chuck, - Sunday - 02/25/07 - 1:07am

Steve, The absolute worst thing you can do to a diesel engine is not use it. Did the owner tell you exactly what steps were taken to lay up the engine? My bet is it was bare minimum if anything at all. I would be very reluctant to just fire that thing up after all of this time. You could do serious damage. If you have the time resources and money, pull it out, take it apart and have pistons, rings, bearings, injectors, pumps and most else checked, lubricated and reassembled before you start it. Others will tell you tales of starting engines after they sat for years but ask yourself if you really want to take that chance?

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[> [> I agree -- steve, - Monday - 02/26/07 - 4:13pm

Thanks for the advice Chuck. I've decided to pull it out and send it off for disassembly and inspection.

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[> Diesel layup -- John Luchau, - Sunday - 03/25/07 - 8:34pm

Before you pull the engine and have it torn apart to look it over may I suggest you try a couple of things first?
1. Disconnect all the fuel lines and use compressed air to clean them all out. Take the injectors to a shop and have them tested.
2. While the injectors are out put some very light oil in the injector holes and turn the engine over by about 20 times. Get as much of the oil the you've put in the holes out whatever way you can.
3. Make certain the injector pump is getting lubricated. If there is a place to hand lubricate it then fill it.
4. Make certain the engine oil is new and clean.
5. Reinstall the injectors and fuel lines.
6. Make certain the fuel you have is perfectly clean and that all filters are new.
7. Bleed the injectors and fuel lines and attempt to start it. Bleeding all air out of the system is essential. If there is air in a fuel line, that cylinder will not fire.
8. Do not spray anything into the intake like ether or WD 40. If after 5 tries and it doesn't start then bleed the system again. All air must be out of the system at the injectors. Try another 5 times.
Good luck!! JohnL - former 4-107 and Mariner 35 owner.

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[> [> Thanks John -- Steve B, - Tuesday - 03/27/07 - 10:14am

Thanks so much John,

I"ll give that a try and see what happens. May save me some money.

Thanks again

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