91 Merc v135 still acting up

[macojoe]

BRIELLY Wouldn't the spark checker do the same thing minus the shock?

Yea but not as fun!! Have you ck the stator??

[BRIELLY]

I will try to test the stator tomorrow although I will probably have to do it while the problem is occuring. BTW how do you check the stator. Ive read the seloc manual but its a bit confusing.

[THEFERMANATOR]

Originally Posted by BRIELLY

I will try to test the stator tomorrow although I will probably have to do it while the problem is occuring. BTW how do you check the stator. Ive read the seloc manual but its a bt confusing.

Ohm meter for resistance checks, and then a PRV for total output. MERC's are known for stator problems as they use a split stator system. One side handles the 3000 RPM's- and the other side handles 3000 RPM's+. The high RPM side normally causes the most grief from what I have heard, but a low side can definately cause trouble.

[spareparts]

when you find a dead cylinder by pulling the spark plug wire, you can determine if its dead from lack of fire, or some other issue. If you find you have two cylinders that have no fire, you look at the trigger, three on one side, look at the switch box. If you have two side by side that have fire but are dead, you may have a flooding carb( or no fule to the carb). You can fine tune your diagnosis by using a spray bottle with soem gas in it. Once you find the offending cylinders, spray a little gas down the carb throat, if the cylinder picks up, you know its not getting fuel. You get the idea?

[BRIELLY]

Sounds like some good advice. Now all I have to do is go break down.

[BRIELLY]

I started it up today in my driveway and there was massive grey/blue smoke for the first few seconds. Would this indicate a carb being flooded? I just rebuilt them a few weeks ago but this problem was happening before the rebuild. The only thing I did before that was rebuild the fuel pump. Is it possible to screw that up and cause the problems I'm having. I hate second guessing myself but everything ive done has been a first for me.

[THEFERMANATOR]

Fuel pump is a definate possibility. Does this engine have oil injection on it?

[steplift20]

check the stator

[BRIELLY]

I didn't take it out today but did run it in my driveway and pulled the plug wires. Here's what I found. All had spark. Cylinders 4, 5, and 6 caused the engine to noticeably bog down when I pulled the wires. 1,2,and 3 did not cause the same change in engine speed. They did however have spark and when I put the wire close enough to the plug the spark jumped and caused a slight pick up in rpm's. Can anyone tell me what this means???