1864
 

:Help: While mowing in some heavy grass, notice engine Ch18S pulling down and darn near killing the tractor. Figured it was firing on one cyl. sure enough. As sitting in the seat, the left bank not firing. Figured it might be a dead plug, install new plug same. All my experience working on Kohler engines is with the K/CV series not the Ch. So I am assuming the I have a mag problem, to get to the mag/mags do I have to pull the engine? Also, why does the parts breakdown show only One (1) mag? when this is a twin cly engine. Any help/advice concerning this matter will be greatly appreciated. Thank you for your time. :American Flag 1:

I would pull the engine. Did you see if you are getting spark on both plugs. Just put a plug against the engine and crank it over and look the see if your getting spark.

The Parts Breakdown shows only one (for reference only) but in the parts box it says "Requires two".

1864
 

:Thanks: For your reply. Checked both sides, nice spark on the right bank as sitting in the seat. I check the compression on both banks @ 170, did not seem right, so I checked with a different gauge and same reading both sides. I bet this is going to be an experience pulling the engine, as I have never done so.

:American Flag 1:

I am going to have to learn to read, as I completely miss that Requires two. Thank you for your reply. :American Flag 1:

I had one die in my 1864 a few years ago and replaced both of them while I had the engine out.

Went through the same issue with my Command powered 782 last year. Changed both.
I did crank seals while it was out too.

Good idea. :American Flag 1:

Me too. :American Flag 1:

My 1864 is out for head gaskets. Is there a how-to on changing out the seals? The back looks like a challenge.

I can send you a Kohler Command Service Manual if you don't have one.

Thank you for your offer. I thought I had one, but it seems to grow legs and disappear. I found one online and I am copying it.

:American Flag 1:

Is that manual on this site where I can print it? If not please let me know where
you found it online so I can print it as well.

Ken

:Morning: Not on this site. Go to Google, type in the Ch18 engine service manual. Kohler site will come up and it listed there. :American Flag 1:

I have the Cyclops service manual and the Kohler manual on "Cub Cadet Cyclops" on Face book. Join and check out the files section.

Sam, where do you get those fire-ring head gaskets?

I think they are NLA.

This one looks suspicious. It shows for the CH25.

https://www.everestpartssupplies.com...730-ch740-cv25

Something does not quite look right. I wonder if the main part of the gasket is asbestos or metal clad. :American Flag 1:

I thought that too. Some of the other gaskets have an embossed line around the bore about 1/8" away where a fire ring should be, but it's obviously just asbestos. At least this one looked like it has a different material in that area.
Maybe I'll see if a human being is at that location tomorrow.

How about these copper head gaskets? Any good?

https://www.ebay.com/itm/KOHLER-COMM...UAAOxyYANTXcfB

I have no idea. Is their sufficient thickness that when they are torqued down to keep the valves from hitting the head. :American Flag 1:

Yer head/block needs to be flat or they won't seal well, because
they are not as forgiving as composite gaskets.

I’m thinking those are sold for the puller guys running more compression.
For AL heads on AL block I’m going to want graphite composition gaskets