4A084 engine info?

[cranetruck]

I agree with the fuel problem. Experienced something similar with my 018 and finally, after cleaning the carb several times, replaced the fuel pump.
Now, I had other problems too, like low compression, which made starting a little difficult. When everything was running well, the generator head failed...found sand and gravel inside the generator and figured that's what caused the failure...

 

[bryanselhorst]

I am sorry i have no input on the thread. i do however have a question on how to time my 4a084 lll. i have a generator with that motor in it and it seems really out of time. i get a puff of smoke is all. anybody have any info on cylinder num 1,2,3,4 and plug wire locations?

 

[bryanselhorst]

do you have any help on timing for me like where cylinder 1234 are located and the plug wire locations?

 

[liftman]

If you search for MEP018-A generator, you will find everything you are looking for.

 

[bryanselhorst]

Thank you I will look that up tonight after work.

 

[bryanselhorst]

it does not give me the location of cylinders or any info on timing please help!

 

[Ratch]

I was looking for the same thing, but was never able to find it.
However, I did read the section of the TM on timing, and found it very helpful, along with posts on the forum.
The TM will list the firing order, too.
A problem I ran into was initially timing the magneto incorrectly. I set it 180 degrees off by not going the correct number of turns when reinstalling it, but once I found the problem, it fired up and ran great. If your cables are still in the correct order, you most likely need to follow the magneto reinstall procedure to get the gears set right, then you can fine time it with a light.

 

[bryanselhorst]

can you possibly send me a copy or a good link for the proper manual it is a tm5 2805 259 14&24p. 4a084 lll 4 cylinder air cooled

 

[bryanselhorst]

i cant seem to find anything with the timing info in it lol.

 

[liftman]

The firing order is 1-4-2-3 and the cylinder number are as follows:

3 4
1 2
Front of engine.

 

[bryanselhorst]

Thanks! Now one more question on the magneto what is the plug order? I can post a pic later

 

[bryanselhorst]

Awesome thanks do you happen to know where 1-2-3-4 are located on magneto lol. I bought two one parts and one supposed to run but wires where off in a box

 

[wciguy]

My 3rd and 4th MEP-018a gensets were brand new and mounted on a trailer. Neither one had spark.....problem was oxidized points.....cleaned them with some 500 grit emery and a shot of contact cleaner. Both ran like tops afterward. Good little engines but sure go through your supply of fuel in a hurry if loaded.

 

[rustystud]

My 3rd and 4th MEP-018a gensets were brand new and mounted on a trailer. Neither one had spark.....problem was oxidized points.....cleaned them with some 500 grit emery and a shot of contact cleaner. Both ran like tops afterward. Good little engines but sure go through your supply of fuel in a hurry if loaded.

The biggest problems with "Point distributors" and "Magneto's" is the contact points and condenser's. The points oxidize and the condensers internally rot out.

 

[bryanselhorst]

I seem to have oil getting on my plugs? And leaking out the donut on my exhaust manifold. Any help as to the cause?

 

[rustystud]

I seem to have oil getting on my plugs? And leaking out the donut on my exhaust manifold. Any help as to the cause?

Your piston rings are probably shot. Or your valve guides are worn out. You can get by with going to hotter plugs for awhile.

 

[bryanselhorst]

That was what I thought. Is there a way to figure out what one's bad without dismantling it first?

 

[rustystud]

That was what I thought. Is there a way to figure out what one's bad without dismantling it first?

If both plugs show oil, then both cylinders are bad.