Barnyard Bash Assistance Requested!

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Dale Finch
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Tractors Owned: '51 Cub #140966 "Bruno" with Woods 59 mower
'55 Cub #187541 "Betty" with Fast Hitch
'55 Cub #190482 "Ben" with Woods 42 mower
'55 Cub #191739 "Bertha" with Woods 42 mower
'56 Cub #194370 "Boris" with Mott Flail mower
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Location: NC, Chapel Hill

Barnyard Bash Assistance Requested!

Postby Dale Finch » Fri Apr 08, 2022 11:55 am

Unless a miracle occurs and I get more motivated than I am, I have 2 cubs that need help! :help:

I have posted about one with no oil pressure. I haven't gotten any further than dropping the oil pan to inspect the oil pickup screen and the bearings for excessive clearance. It's about all I "we" (with your help!) have come up with, as I have cleaned then swapped out the oil regulator valve, swapped out the oil pressure gauge twice, and have confirmed the pump IS pimping into the oil filter housing (though not sure what its pressure is).

So, I'm hoping I can "reserve" someone's assistance in troubleshooting this lack of oil pressure.

The second cub was bought as a non-runner, but free engine. I am able to crank it with the starter but am getting no spark from the coil. I replaced the coil, thinking that was obvious, but still no spark. I have gone through the troubleshooting chart numerous times and can't get past the coil.
The engine has fairly low compression, and though that might keep it from running or having much oomph, it wouldn't keep me from have spark.

So, I am looking for the "electrical wizard", who will help me track this down. I KNOW I could continue slugging at this, but to be honest, I have run out of ideas and am just not motivated to do so!
:surrender: I REALLY, REALLY miss having the DSCF at the first of the year, and am sorry I couldn't attend the LA Cubfest, where I probably could have resolved this issue!!
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Barnyard
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Re: Barnyard Bash Assistance Requested!

Postby Barnyard » Fri Apr 08, 2022 12:37 pm

Check the wire to and from the amp meter on the second Cub. I had one off and it stumped me for two days.
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Dale Finch
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Posts: 5993
Joined: Tue Apr 27, 2010 11:34 am
Zip Code: 27517
Tractors Owned: '51 Cub #140966 "Bruno" with Woods 59 mower
'55 Cub #187541 "Betty" with Fast Hitch
'55 Cub #190482 "Ben" with Woods 42 mower
'55 Cub #191739 "Bertha" with Woods 42 mower
'56 Cub #194370 "Boris" with Mott Flail mower
Circle of Safety: Y
Location: NC, Chapel Hill

Re: Barnyard Bash Assistance Requested!

Postby Dale Finch » Fri Apr 08, 2022 12:41 pm

Will do, Bill! At least it is something to look at, though I had been looking at ALL the wiring for about a month. I was probably just missing something that you folks will say was OBVIOUS!! :lol:
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Don McCombs
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Re: Barnyard Bash Assistance Requested!

Postby Don McCombs » Fri Apr 08, 2022 2:06 pm

Is your replacement coil a new one or a known good one?
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Re: Barnyard Bash Assistance Requested!

Postby Eugene » Fri Apr 08, 2022 3:47 pm

Dale: Engine with lack of oil pressure. What is the history of the engine? What was the clearance when you checked the rod and main journals?

Check to see if the plug under the valve cover is in place. If the other plugs in the oil gallery are missing - engine tear down.

Remove oil filter, start engine, oil being pumped into oil filter housing, place finger on the oil inlet. Cold worn engine, you should be able to feel 10 psi or more oil pressure and see a decent oil flow.
I have an excuse. CRS.

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Dale Finch
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Posts: 5993
Joined: Tue Apr 27, 2010 11:34 am
Zip Code: 27517
Tractors Owned: '51 Cub #140966 "Bruno" with Woods 59 mower
'55 Cub #187541 "Betty" with Fast Hitch
'55 Cub #190482 "Ben" with Woods 42 mower
'55 Cub #191739 "Bertha" with Woods 42 mower
'56 Cub #194370 "Boris" with Mott Flail mower
Circle of Safety: Y
Location: NC, Chapel Hill

Re: Barnyard Bash Assistance Requested!

Postby Dale Finch » Fri Apr 08, 2022 6:06 pm

Don McCombs wrote:Is your replacement coil a new one or a known good one?

A new one. Hmm...I do have a known good one, though. Might be worth a swap.

Eugene wrote:Dale: Engine with lack of oil pressure. What is the history of the engine?
Engine ran strong...was mowing easily with a Woods 59. I actually never knew there was a problem until I started it one time and there was no pressure.
What was the clearance when you checked the rod and main journals?
I haven't had the energy to go that far...ONLY dropped the oil pan!
Check to see if the plug under the valve cover is in place. If the other plugs in the oil gallery are missing - engine tear down.
Doubtful this is the problem, unless a plug vibrated itself out...rather unlikely I think.
Remove oil filter, start engine, oil being pumped into oil filter housing, place finger on the oil inlet. Cold worn engine, you should be able to feel 10 psi or more oil pressure and see a decent oil flow.
I guess I should have "tested" the pressure with my finger over the hole in the filter housing, but didn't think of it. Only checked to see that oil WAS being pumped. Unfortunately, the oil is drained with the pan off, so I hesitate refilling to test that without more "encouragement".

I WILL swap out the coil and see if I can leave that cub home, since it really needs no other work. That would leave more room for my Cub Express items!! :D
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staninlowerAL
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Re: Barnyard Bash Assistance Requested!

Postby staninlowerAL » Sat Apr 09, 2022 2:34 am

:tractor: Dale, I'm not an electrical wizard but I just went through through the coil issue yesterday (you can read my post on this forum). Is your "no fire" on the low voltage side to the points or on the high voltage side from the coil to the distributor cap? PM sent.

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Dale Finch
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Posts: 5993
Joined: Tue Apr 27, 2010 11:34 am
Zip Code: 27517
Tractors Owned: '51 Cub #140966 "Bruno" with Woods 59 mower
'55 Cub #187541 "Betty" with Fast Hitch
'55 Cub #190482 "Ben" with Woods 42 mower
'55 Cub #191739 "Bertha" with Woods 42 mower
'56 Cub #194370 "Boris" with Mott Flail mower
Circle of Safety: Y
Location: NC, Chapel Hill

Re: Barnyard Bash Assistance Requested!

Postby Dale Finch » Sat Apr 09, 2022 6:43 am

I've only checked the center coil wire to a ground, with no arcing over a narrow gap.

PM returned! :D
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Re: Barnyard Bash Assistance Requested!

Postby Mht » Sat Apr 09, 2022 10:46 am

I’ve also got a tractor down with what I believe to be electrical. It’s a cub I finished refurbishing last year that has run perfect every time I’ve used it until last weekend. I’m no electrical guru but am an old school mechanic. My down and dirty troubleshooting plan will be as follows. Check for proper voltage at coil with multimeter. If bad check wires and switch back to amp gauge. If good disconnect wire from coil to distributor and check for continuity to ground coming and going as I turn the engine over. If this happens I’ll assume points are good and coil is bad. If not then I’ll open distributor and check, clean, reset point gap as necessary. If points are burnt badly I’ll assume the condensor is bad or failing and replace it. If I’m still a no fire situation I’ll check rotor, cap, and wires and replace, repair, or clean as necessary. The first two tests with a multi meter give you a lot of direction in just a matter of a couple of minutes with only taking one wire loose from the coil. This procedure would need to be modified slightly for a cub with magneto. If I’m off base on anything here or anyone can add anything else I’d appreciate it. The points test is actually easier to do with an old school test light that has a battery in it rather than a multi meter

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Dale Finch
10+ Years
10+ Years
Posts: 5993
Joined: Tue Apr 27, 2010 11:34 am
Zip Code: 27517
Tractors Owned: '51 Cub #140966 "Bruno" with Woods 59 mower
'55 Cub #187541 "Betty" with Fast Hitch
'55 Cub #190482 "Ben" with Woods 42 mower
'55 Cub #191739 "Bertha" with Woods 42 mower
'56 Cub #194370 "Boris" with Mott Flail mower
Circle of Safety: Y
Location: NC, Chapel Hill

Re: Barnyard Bash Assistance Requested!

Postby Dale Finch » Sat Apr 09, 2022 12:52 pm

I received assistance (and motivation!) from a couple forum guys today, which FORCED me to review previous troubleshooting and servicing I had done way back in January (with my memory, it's sure a good thing I keep good notes on each of my 6 tractors)! I then went outside & started tracing things...power & continuity...and confirming I had no power to the coil.

In the process, I had to disconnect one of the ammeter wires, and after running through some checking, where everything seemed good, I reconnected the wire, and lo & behold... I had spark!! It might be a bit weak, so I still have work to do, but I'm closer!

Just before I went in to lunch, I hooked up a pony bottle, and tried starting it. First I managed to flood it. But one final try, and it ALMOST started. :D

I'll probably recheck points, etc., but I think I'm on the right path.

I just wish I knew for sure, what I did to get the spark back!! :?
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Re: Barnyard Bash Assistance Requested!

Postby Mht » Sat Apr 09, 2022 2:58 pm

It certainly sounds like the connection at the amp meter was part of the problem. It would probably be a good idea to check, clean, tighten all connections at the coil, switch, amp meter etc. even if the wire you removed from the amp meter wasn’t part of the ignition you may have jostled a connection enough that it is now making contact.

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Barnyard
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Re: Barnyard Bash Assistance Requested!

Postby Barnyard » Sat Apr 09, 2022 3:31 pm

Sounds like you had a bad connection at the amp meter
There are two ways to get enough Cubs. One is to continue to accumulate more and more. The other is to desire less.

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Dale Finch
10+ Years
10+ Years
Posts: 5993
Joined: Tue Apr 27, 2010 11:34 am
Zip Code: 27517
Tractors Owned: '51 Cub #140966 "Bruno" with Woods 59 mower
'55 Cub #187541 "Betty" with Fast Hitch
'55 Cub #190482 "Ben" with Woods 42 mower
'55 Cub #191739 "Bertha" with Woods 42 mower
'56 Cub #194370 "Boris" with Mott Flail mower
Circle of Safety: Y
Location: NC, Chapel Hill

Re: Barnyard Bash Assistance Requested!

Postby Dale Finch » Sat Apr 09, 2022 4:59 pm

Well! I did go back out after lunch, and now have "Good News, Bad News, ?? News"!

Good news, I installed a new distributor cap, new plug wires, checked the points gap (good) and I got the tractor running!! :{_}:

Bad news, it was making an odd noise. So I shut it down to investigate. Thought it might be the fan...seemed to have a bit of play...not much, but...
I decided to oil the fan, figuring it probably hadn't been serviced in a while. I filled it and before I drained the excess, I motored the engine a few seconds to stir it up, then drained the excess. I also hand cranked the engine to see if I could still hear the noise. I couldn't, so I started it up again & it still made some unusual sounds...not a knock so much, but hard to discribe. Shut it down again.

I hadn't started any servicing, since I wanted to see if it would run first. So, I drained the oil....dirty...then drained the filter housing...full of sludge. Cleaned everything up & installed a new filter, but while doing so, I've decided this tractor might need some engine work, and I'm not inclined, nor equipped to do that.
Last edited by Barnyard on Sat Apr 09, 2022 9:55 pm, edited 1 time in total.
Reason: remove comment about it being for sale.
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Re: Barnyard Bash Assistance Requested!

Postby Greenthumbfarms » Sat Apr 09, 2022 8:10 pm

Dale Finch wrote: 6 Cubs is too many:

Dale, you and I both know that isn't true!
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Dale Finch
10+ Years
10+ Years
Posts: 5993
Joined: Tue Apr 27, 2010 11:34 am
Zip Code: 27517
Tractors Owned: '51 Cub #140966 "Bruno" with Woods 59 mower
'55 Cub #187541 "Betty" with Fast Hitch
'55 Cub #190482 "Ben" with Woods 42 mower
'55 Cub #191739 "Bertha" with Woods 42 mower
'56 Cub #194370 "Boris" with Mott Flail mower
Circle of Safety: Y
Location: NC, Chapel Hill

Re: Barnyard Bash Assistance Requested!

Postby Dale Finch » Mon Apr 11, 2022 9:42 am

I made a very short video of getting the tractor to run. Maybe one of you can identify the source?
https://youtu.be/boRZ49leKbM
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