Export thread

Bad coil... already?!

#1

Craftsman Garage

Craftsman Garage

I purchased a Craftsman II gt18 garden tractor with a 18hp OPPOSED twin briggs for $50, and when we picked it up didn't run. seller had replaced the "distributor" (coil) but we discovered that he had grounded the kill wire...LOL. we hooked up the kill wires PROPERLY and the thing started up beautifully(with a slight surge) and it worked for like a week or two of daily use. Everything is PRISTINE on this tractor, the blades engage instantly and only have a slight hum to the spindles. steering gear is worn out to where it skips over if you turn it to the left... ANYWAY was driving it and it suddenly shut down like something was really wrong. I tried starting fluid, cleaning carb, changing plugs... nothing. I spark tested the coil and NO SPARK (I tried several different ground just to be sure). I will begrudgingly buy a new one, but I don't want it to fall on its face after a week. I assume the sudden death is because of the humidity here in Oregon? if I buy a new one, I want to to be able to do the job a few years and TO NOT BREAK THE BANK. If all coils just die in humidity, ill just sell the darn thing. ANY SUGGESTIONS would help tons, thanks. (this would be third coil I have had to change this week 😭)


#2

StarTech

StarTech

If you have replace the coil 3X in one week I would be suspecting a stray voltage is being applied during the coil shutdown. IE bad ignition switch sending voltage on the kill wire as you rotate it to the stop/off position.


#3

Craftsman Garage

Craftsman Garage

StarTech said:
If you have replace the coil 3X in one week I would be suspecting a stray voltage is being applied during the coil shutdown. IE bad ignition switch sending voltage on the kill wire as you rotate it to the stop/off position.
Click to expand...
noooo, I meant in general, not ON THIS MOWER. I replaced 2 coils on a craftsman dgs6500 courage twin (converted DSAI to MDI) lol. I have not replaced the coil on this mower since I bought it. the previous owner did ONCE


#4

Craftsman Garage

Craftsman Garage

im just confused why the coils are going out on my machinery at the same time, or maybe its just bad luck


#5

Craftsman Garage

Craftsman Garage

StarTech said:
If you have replace the coil 3X in one week I would be suspecting a stray voltage is being applied during the coil shutdown. IE bad ignition switch sending voltage on the kill wire as you rotate it to the stop/off position.
Click to expand...
is raisman a good brand?
www.ebay.com

New Raisman Genuine Service Part - Ignition Coil 80-60-051 - Twin Cylinder | eBay

New Raisman Genuine Service Part - Ignition Coil 80-60-051. Raisman Genuine Service Part. Ignition Coil.
www.ebay.com


#6

StarTech

StarTech

Heck in my shop one year right after a local lightning strike I had to replace 5 coils on engines that were running the previous day. Now I had a hint as I was also shocked the same day.

As for Raisman I don't personally know as I haven't used them in my shop repairs. Others may may chime with their experiences on Raisman coils and that would be helpful on deciding.


#7

Craftsman Garage

Craftsman Garage

hoping I don't have to go through that lol


#8

C

Chipg1956

I don't recall ever using a Raisman coil but their other parts are as good as any.


#9

navydad2022

navydad2022

MechanicLane said:
I purchased a Craftsman II gt18 garden tractor with a 18hp OPPOSED twin briggs for $50, and when we picked it up didn't run. seller had replaced the "distributor" (coil) but we discovered that he had grounded the kill wire...LOL. we hooked up the kill wires PROPERLY and the thing started up beautifully(with a slight surge) and it worked for like a week or two of daily use. Everything is PRISTINE on this tractor, the blades engage instantly and only have a slight hum to the spindles. steering gear is worn out to where it skips over if you turn it to the left... ANYWAY was driving it and it suddenly shut down like something was really wrong. I tried starting fluid, cleaning carb, changing plugs... nothing. I spark tested the coil and NO SPARK (I tried several different ground just to be sure). I will begrudgingly buy a new one, but I don't want it to fall on its face after a week. I assume the sudden death is because of the humidity here in Oregon? if I buy a new one, I want to to be able to do the job a few years and TO NOT BREAK THE BANK. If all coils just die in humidity, ill just sell the darn thing. ANY SUGGESTIONS would help tons, thanks. (this would be third coil I have had to change this week 😭)
Click to expand...
Would a new coil act up as far as intermittent to where it sounds like uneven engine firing.


#10

Hammermechanicman

Hammermechanicman

I have used a lot of Raisman chainsaw parts with no issues.


#11

L

LMPPLUS

I'm here in central Florida with similar humidity and many homeowners leave their mowers outside I don't think the humidity is your issue I think product quality, we sell OEM coil when we can and have few problems.


#12

navydad2022

navydad2022

LMPPLUS said:
I'm here in central Florida with similar humidity and many homeowners leave their mowers outside I don't think the humidity is your issue I think product quality, we sell OEM coil when we can and have few problems.
Click to expand...
So cheaper is not a way to go,l found that out on buying a cheaper carb .and found out and purchased OEM part.


#13

navydad2022

navydad2022

navydad2022 said:
So cheaper is not a way to go,l found that out on buying a cheaper carb .and found out and purchased OEM part.
Click to expand...
I think that's what's wrong with my mower on miss firing is the cheap coil.


#14

Craftsman Garage

Craftsman Garage

replaced and it fired right up, runs smoother than butter


Footer Links 1

Top