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| 1983 JX Help identifying engine |
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Message |
    
Kenneth E Forsyth
New member
Username: redgato
Post Number: 3
Registered: 03-2021
| | Posted on Saturday, March 13, 2021 - 12:34 am: | 
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Looking for any information on this diesel marine engine. It has been stored since early 1980's in a wooden crate.
Engine info.
Mfr: JX Model 190C  |
miro forest
Senior Member
Username: miro
Post Number: 1124
Registered: 11-2001
| | Posted on Sunday, March 14, 2021 - 03:26 pm: |
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Looks like it might be for a small inshore fishing boat or an auxiliary power unit for a larger sailboat.
I think the name plate tells you all you need to know. Very likely a knock off of a European engine. In any case if it's got good compression, and its fuel injector pump works, then it will run.
Starting it looks like you engage the decompression valve, spin it up using the crank, then let go of the decompression valve and bang - it's running. Get an experienced ( i.e. wrinkled, grey haired) diesel guy to help you. |
Kenneth E Forsyth
Member
Username: redgato
Post Number: 4
Registered: 03-2021
| | Posted on Sunday, March 14, 2021 - 08:20 pm: |
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Thank you Miro for responding.
It has great compression (it's hard to spin with the decompression valve engaged) at least I think it does.
Other questions:
Should the fuel lines be cleaned pre/post filter?
Should the filter be replaced after sitting for so many years?
What would you recommend for engine case oil and trans oil?
Any points of contact that you know of in California?
YOur input would really be appreciated.
-Ken in Sacramento |
miro forest
Senior Member
Username: miro
Post Number: 1125
Registered: 11-2001
| | Posted on Friday, March 19, 2021 - 10:25 am: |
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Well, since it has not likely been run, then the original factory oil is still in the fuel lines.
Cleaning the fuel system completely would be a very good thing to do - even a small piece of schmutz can block or impair the little wee tiny holes in the injector nozzle.
A good rule when working on fuel systems for diesels is "SURGICAL CLEANLINESS.
If the filter looks OK then it probably is clean.
Crankcase oil might be a Rotella 20-40 or if single weight a 30 or 40 weight. I'd run multi weight initially - say 10 hours and then change it
For transmission a single weight 30 or 40 , non-detergent oil will be OK.
Since it will likely not have a load on it when you first try to start it, I'd take off the airfilter and make some provision to block the air in case you start getting a runaway - please don't use a rag - it would just get sucked into the engine.
Looks like you have a starter on it which will make life a bit easier. And as I said earlier, get an old diesel guy to give a hand - you might try contacting an outfit that repairs / cleans diesel injectors to help you find a "guy" .
It will pretty smokey when you first fire it up - but that's OK . blue smoke.
If it's white smoke that means it isn't firing - stop cranking and find out why. With compression as good as you say it should fire
I don't have many contacts in CA - Louisiana and New England - OK but not CA
miro |
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