Rider engine adapter plates - MyTractorForum.com - The Friendliest Tractor Forum and Best Place for Tractor Information
 
LinkBack Thread Tools Display Modes
post #1 of 14 Old 04-27-2019, 02:39 PM Thread Starter
Senior MTF Member
 
Join Date: Dec 2016
Posts: 408
Rider engine adapter plates

Going to start on the next project. A 8179 KT with a frozen Kohler KT-19 series II. Noticed that this engine uses a different engine adapter #32164 than the adapter #20555 used on the Kohler single and Briggs powered engines. But don't see a gasket used like #18340 used with the #20555 plate. Looking at the Onan adapter #18427 it looks like another seal was added. What seals the adapter to the engine on the 8179? RTV? I'm sure I will be able to repair the KT-19, but do have a Kohler 18 hp twin from a Cub Cadet, MV-18 if needed. Anybody know what adapter to use with the MV-18 engine?
Toddnails is offline  
Sponsored Links
Advertisement
 
post #2 of 14 Old 04-27-2019, 05:46 PM
3K Poster!!!!
 
Join Date: May 2011
Location: Maryland
Posts: 3,300
Re: Rider engine adapter plates

I believe there is an O-ring that goes between the adapter and the engine, pretty sure that Kohler has a roughly 2.5" diameter ring on the rear closure plate that seals against the adapter. I suspect RTV will work fine.

The Kohler 18 hp you have from a Cub, is it horizontal or vertical? If it horizontal, it is a M18. Pictures please?

When GRAVELY switched to improved Magnum 18 and 20 engine, Kohler made the engine to bolt directly to the GRAVELY trans axle. The rear closure plate on the GRAVELY version of that engine IS the adapter. There is no separate adapter on the later tractors.

Sheldon

ATLANTIC CENTRAL is offline  
post #3 of 14 Old 04-27-2019, 10:55 PM Thread Starter
Senior MTF Member
 
Join Date: Dec 2016
Posts: 408
Re: Rider engine adapter plates

Thanks. You are right the Magnum engine I have is a horizontal shaft style engine, that is now mounted in a John Deere 317 tractor. I am hoping to repair the KT-19 and keep the M-18 on the JD. What Gravely models used the M-18/M20 engine?
Toddnails is offline  
Sponsored Links
Advertisement
 
post #4 of 14 Old 04-27-2019, 11:45 PM
3K Poster!!!!
 
Join Date: May 2011
Location: Maryland
Posts: 3,300
Re: Rider engine adapter plates

In 1989 when GRAVELY introduced the G series, they switched to the new Kohler Magnum M18 and M20.

Tractors like mine, which is a 1995:





16-G and 18-G tractors actually are both 18 HP M18's, but the 16-G lacked an oil filter, easily added.

20-G tractors had the 20 HP M20

The M18 you have on the Deere will not easily go on the GRAVELY, it may bolt up to the KT17 adapter you have, but I suspect crank is not right for the GRAVELY.

Sheldon

ATLANTIC CENTRAL is offline  
post #5 of 14 Old 04-28-2019, 01:32 PM
3K Poster!!!!
 
yamato72's Avatar
 
Join Date: Jun 2008
Location: Mid-Michigan
Posts: 3,403
Barn
Gravely put gaskets on some of the twins and not others. The factory used RTV in most cases, it’s only needed around the crown of the input shaft and the well for the PTO. If the factory used a gasket, it used a similar-thickness spacer to maintain the critical bevel gear depth. You want to use a gasket if there was one originally, and no gasket if there was not. Measure the gear extension to be sure.

Gravely 18-G * 50" MMM * 48" Snow Blade / Gravely 816 Project * 30" Tiller * 48" Blower / Custom Trailer
yamato72 is offline  
post #6 of 14 Old 04-29-2019, 08:24 PM Thread Starter
Senior MTF Member
 
Join Date: Dec 2016
Posts: 408
Re: Rider engine adapter plates

Thanks guys. I was able to find the #s on the M-18 I have. And found the crank is different than ones used on the G models. I can't read the tag on the KT-19 used on the 8179-KT, its painted over. Does anybody know the Gravely or better yet the Kohler part # for the KT-19 series II crankshaft used? Who knows I might be able to get the K-19 running, but if not a plan B swap with a running engine will help to find if this is a repairable or a parts machine.
Toddnails is offline  
post #7 of 14 Old 04-30-2019, 08:20 AM
Senior MTF Member
 
Steveamy40342's Avatar
 
Join Date: Oct 2009
Location: Kentucky
Posts: 669
Re: Rider engine adapter plates

Quote:
Originally Posted by Toddnails View Post
Going to start on the next project. A 8179 KT with a frozen Kohler KT-19 series II. Noticed that this engine uses a different engine adapter #32164 than the adapter #20555 used on the Kohler single and Briggs powered engines. But don't see a gasket used like #18340 used with the #20555 plate. Looking at the Onan adapter #18427 it looks like another seal was added. What seals the adapter to the engine on the 8179? RTV? I'm sure I will be able to repair the KT-19, but do have a Kohler 18 hp twin from a Cub Cadet, MV-18 if needed. Anybody know what adapter to use with the MV-18 engine?


MV-18 engine with vertical crankshaft? It won’t go on a Gravely rider....


Sent from my iPhone using Tapatalk
Steveamy40342 is offline  
post #8 of 14 Old 04-30-2019, 08:24 AM
Senior MTF Member
 
Steveamy40342's Avatar
 
Join Date: Oct 2009
Location: Kentucky
Posts: 669
Re: Rider engine adapter plates

Quote:
Originally Posted by ATLANTIC CENTRAL View Post
In 1989 when GRAVELY introduced the G series



Sheldon


The G series was introduced in 1986 with the 8000-G tractors.


Sent from my iPhone using Tapatalk
Steveamy40342 is offline  
post #9 of 14 Old 04-30-2019, 08:31 AM
Senior MTF Member
 
Steveamy40342's Avatar
 
Join Date: Oct 2009
Location: Kentucky
Posts: 669
Re: Rider engine adapter plates

Quote:
Originally Posted by Toddnails View Post
Thanks guys. I was able to find the #s on the M-18 I have. And found the crank is different than ones used on the G models. I can't read the tag on the KT-19 used on the 8179-KT, its painted over. Does anybody know the Gravely or better yet the Kohler part # for the KT-19 series II crankshaft used? Who knows I might be able to get the K-19 running, but if not a plan B swap with a running engine will help to find if this is a repairable or a parts machine.


1985 Gravely KT19 II specification 49232
1983 is 49201
1984 ?


Sent from my iPhone using Tapatalk
Steveamy40342 is offline  
post #10 of 14 Old 04-30-2019, 08:33 AM
Senior MTF Member
 
Steveamy40342's Avatar
 
Join Date: Oct 2009
Location: Kentucky
Posts: 669
Re: Rider engine adapter plates

Quote:
Originally Posted by Steveamy40342 View Post
1985 Gravely KT19 II specification 49232
1983 is 49201
1984 ?


Sent from my iPhone using Tapatalk


49236 is the 1985 specification. Sorry for the typo.


Sent from my iPhone using Tapatalk
Steveamy40342 is offline  
post #11 of 14 Old 04-30-2019, 07:27 PM Thread Starter
Senior MTF Member
 
Join Date: Dec 2016
Posts: 408
Re: Rider engine adapter plates

Well I did find the tag on the KT-19 today. It does have spec.# 49201. But still cannot find the Gravely or Kohler Part# for the crankshaft. It does look like the Series II and Magnum use the basic design and are interchangeable. The Magnum engine I have is a M-18. I was wrong to ID it as A MV-18.
Toddnails is offline  
post #12 of 14 Old 04-30-2019, 11:29 PM
3K Poster!!!!
 
Join Date: May 2011
Location: Maryland
Posts: 3,300
Re: Rider engine adapter plates

Quote:
Originally Posted by Steveamy40342 View Post
The G series was introduced in 1986 with the 8000-G tractors.


Sent from my iPhone using Tapatalk
Steve, yes, I should have been more specific as in Professional G Series.

Just going by the parts break downs, the question remains, exactly when did the move from the Series II engine to the Magnum engine?

And when did Kohler start delivering the integral closure plate/adapter engines, and were there series II engines with the integral closure plate/adapter?

I have never seen one?

Every Pro G with a Kohler twin I have ever seen came with a Magnum with the integral closure plate/adapter.

I have had people not familiar with the later Kohler twins on the GRAVELY tell me they did not exist and that there had to be a separate adapter.

Sheldon

ATLANTIC CENTRAL is offline  
post #13 of 14 Old 05-01-2019, 05:08 PM
Senior MTF Member
 
Steveamy40342's Avatar
 
Join Date: Oct 2009
Location: Kentucky
Posts: 669
Re: Rider engine adapter plates

Quote:
Originally Posted by ATLANTIC CENTRAL View Post
Just going by the parts break downs, the question remains, exactly when did the move from the Series II engine to the Magnum engine?



Sheldon


1985 M18S spec 24507
1985 M20S spec 49507
Are the first I know of for Gravely
There are KT 17 and KT 19 also in 1985.
I suspect the change occurred for the 1986 model year riders, some of which were built in late 1985, but were still 1986 models.
The last KT engines were likely used in the last 8000 series tractors built in the earlier part of 1985.


Sent from my iPhone using Tapatalk
Steveamy40342 is offline  
post #14 of 14 Old 05-01-2019, 09:44 PM
3K Poster!!!!
 
Join Date: May 2011
Location: Maryland
Posts: 3,300
Thanks Steve

ATLANTIC CENTRAL is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the MyTractorForum.com - The Friendliest Tractor Forum and Best Place for Tractor Information forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
Need manual for Jacobsen Rear Engine Rider???? Forest Gump Jacobsen 1 04-10-2019 04:07 PM
Finger amputation with engine off? TechnicalLee Snow Removal Equipment 23 01-03-2019 06:19 PM
Never Take Pump Out of Adapter ssmewing Case_Ingersoll_Colt Forum 16 12-24-2018 05:28 PM

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome