MEP-8xx series Replacement parts

Daybreak

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Howdy,
For a MEP-802/803 unit which has no power, lights, pump, start etc....

Make sure the Emergency Stop Button is pulled out. (also, maybe cycle it to make sure)
 

Guyfang

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You can test the S-17, (emergency stop button) also. But start at the batteries. 24 volts on the batteries. Then go to the CB-1, (D:C: control circuit breaker). Then the S-17. Then to pin 2 on the S-1, (start switch)

Thats a start. Get into the schematics. Its not hard
 

Daybreak

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Howdy,
All the manuals you will need to do anything with your units are here on Steel Soldiers.

All the manuals for the MEP-802, 5KW Generator and MEP-803 10KW Generator

MEP-802A and MEP-803A manual information

MEP-802A manuals you should have
TM 9-2815-252-24_____ Diesel Engine Model DN2M
TM 9-2815-252-24P____ Diesel Engine Model DN2M-1 Parts
LO 9-6115-641-12____ Lubrication Order
TB 9-6115-641-13____ Winterization Kit Tech Bulletin
TM 9-6115-641-10 ____ Operator's Manual MEP-802A
TM 9-6115-641-24____ Maintenance Manual MEP-802A
TM 9-6115-641-24P____ Maintenance MEP-802A Parts

MEP-803A manuals you should have
TM 9-2815-253-24_____ Diesel Engine Model DN4M
TM 9-2815-253-24P____ Diesel Engine Model DN4M-1 Parts
LO 9-6115-642-12____ Lubrication Order
TB 9-6115-642-13____ Winterization Kit Tech Bulletin
TM 9-6115-642-10____ Operator's Manual MEP-803A
TM 9-6115-642-24____ Maintenance Manual MEP-803A
TM 9-6115-642-24P____ Maintenance MEP-803A Parts
 

87Nassaublue

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Mike,

This info should be put into an Excel file, and constantly up dated. Too many people reinvent the wheel every time someone new starts looking for parts. A list for every type of gen set by model.

The same with manuals. I have the newest Power generation CD, and asked a moderator if we could remove the manuals that are in the forums manual bank. Got no reply yet. I would replace the manuals by type and model. There are NEW manuals, along with changes to others.

That's an excellent idea.
 

Daybreak

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Howdy,
Any MEP-8xx should be thoroughly checked, and then fully loaded to 100% for a few hours.
 

jamawieb

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Looking for an access door for a MEP 803A. Need the one that is on the side where the batteries are located
Evil Dr. Porkchop is parting out a unit. I bought the access door on the starter side and so he only has the side where the dip stick is located.
 

Ray70

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Hey guys, not sure if this is the best place to post this info but.... I found another great source for LPW engine gaskets, if any of you haven't tried it yet.
I noticed the the ebay UK site seems to have abetter selection of LPW parts than the US site and found [FONT=&quot]www.e-gaskets.co.uk to have great prices on gaskets.
Even after the currency conversion and paying some postage, some parts are still about 50% cheaper than the best domestic prices I've found.
For example.... valve cover gaskets domestically are $10 each. Geoff Quick at e-gaskets sold me LPW4 4 packs for $9.25 USD. a set.
LPW2 head gaskets, I was paying $25 Domestically, he has them for $18.
And since gaskets are small and light, shipping is pretty cheap, probably even less than most domestic shipping costs.

[/FONT]
 

NormB

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Rookie question, one I’ve been going around in circles on.

Found gasket sets (complete) on a different UK website, site you mentioned only has TOP end decoking sets.

Question I’ve got it, what mechanical, dimensional differences are there between the Onan and Lister-Petter engines?

Can gaskets from one be used for overhauling another?

Or just decoking.

Thanks.
 

Light in the Dark

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The Onan engine in the MEP-802/803 are literally Lister-Petter engines, except for the Onan badge. They are 100% Lister-Petter, OEM branded for Onan for this application.
 

jamawieb

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Yes, what Light in the dark said. Onan bought the rights to the Lister Pitter motor and put their markings on it. When the units go through tier 2 rebuilds, they are marked with a sticker that says rebuilt Lister Petter. The Lister Petter is model for the 803a is LPW4 and the Onan is DN4M.
 

USAMilRet

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Rookie question, one I’ve been going around in circles on.

Found gasket sets (complete) on a different UK website, site you mentioned only has TOP end decoking sets.

Question I’ve got it, what mechanical, dimensional differences are there between the Onan and Lister-Petter engines?

Can gaskets from one be used for overhauling another?

Or just decoking.

Thanks.
When looking for parts, I always try the LP numbers from their parts manual. The LPW4 gasket set for $80 from the auction house will work, except for the metal rings that sit under the lower pushrod tube seal. Those are a bit large to sit in the recess.

I have used 2 of the gasket sets with no other issues.
 

NormB

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When looking for parts, I always try the LP numbers from their parts manual. The LPW4 gasket set for $80 from the auction house will work, except for the metal rings that sit under the lower pushrod tube seal. Those are a bit large to sit in the recess.
I have used 2 of the gasket sets with no other issues.
Thanks. Looked at some of those, too. Kit from UK runs about $100 plus shipping.

So where/who makes the OEM parts? Some shop in UK or do they import theirs from PRC, inc., too?
 
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