Shop Floor Talk  

Go Back   Shop Floor Talk > Welding and Metalworking Forums > Mechanical & Electrical

SFT Search:   
Reply
 
Thread Tools Display Modes
  #1  
Old 03-13-2019, 10:34 PM
rustythe4x4's Avatar
rustythe4x4 rustythe4x4 is offline
Elite Member
 
Join Date: Oct 2010
Location: Saskatchewan
Posts: 1,535
Default Melroe Bobcat M444 repower

If any of you folk have the book of faces on the interweb, there is a group called Bobcat owners of America. I did a full build thread there so I wont get into the tedious details of what went on day to day.

My granddad bought this M444 from the local Coop in 1978. It lived in a fertilizer shed and unloaded box cars from when it was new in 1966. My granddad used it for all sorts of projects as a general contractor/craftsman Including digging basements. He then decided my dad could make better use of it and "loaned" it to him somewhere in the 80's. Dad used it to clean horse stalls and chicken coupes, (and of course so did I.)
Fast forward to about 2010 and dad decided I could make better use of the machine on the farm here, so he hauled it up and "loaned" it to me.
This guy has almost 1800 hours on it, and the original Onan engine is beat. It has been repaired/overhauled twice before, and wasn't worth the time to fix it yet again. I decided to repower it.
I sourced a Kohler Magnum 20 horse twin and set to working built a custom engine mount, had an adapter sleeve machined so the variable drive sheave would fit on the new crankshaft. I did some redneck machining for the pump drive, and after a lot of measurements and colorful language, (not to mention a couple new scars) it runs better than it ever has since my granddad first bought it.
The intention was never to restore it, but make it a useable, reliable machine. The extra 5 horsepower makes a world of difference! New custom wiring harness and cleaned up (and painted) gauge pods complete the package, right down to my custom made muffler.
Enjoy the pics, even though they will likely turn sideways on me.
Attached Thumbnails
Click image for larger version

Name:	20190309_165951.jpg
Views:	73
Size:	211.6 KB
ID:	149939   Click image for larger version

Name:	20190309_161633.jpg
Views:	76
Size:	232.4 KB
ID:	149940   Click image for larger version

Name:	20190309_183151.jpg
Views:	68
Size:	208.8 KB
ID:	149941   Click image for larger version

Name:	20190308_190713.jpg
Views:	68
Size:	212.7 KB
ID:	149942   Click image for larger version

Name:	20190302_184136.jpg
Views:	66
Size:	221.4 KB
ID:	149943  

__________________
Living the country life


Learning boils down to "Repetition or the avoidance of pain", some people learn by doing, some by watching and some have to pee on the electric fence. - Norm W.

Mathew 10:36
And a man's foes shall be they of his own household
-Ironman quoting the Bible
Reply With Quote
  #2  
Old 03-13-2019, 10:42 PM
Whitetrash's Avatar
Whitetrash Whitetrash is offline
Elite Member
 
Join Date: Mar 2009
Location: Estes Park, CO [Around 8000 Ft. Elv.]
Posts: 2,751
Default

Nice work especially knowing how easy Bobcats are to work on. Easy access does not describe any repair on those machines
__________________
"Socialism is a philosophy of failure, the creed of ignorance, and the gospel of envy, its inherent virtue is the equal sharing of misery."
Winston Churchill
Reply With Quote
  #3  
Old 03-17-2019, 10:13 PM
rustythe4x4's Avatar
rustythe4x4 rustythe4x4 is offline
Elite Member
 
Join Date: Oct 2010
Location: Saskatchewan
Posts: 1,535
Default

Had it out working long enough to run it out of fuel.
A drink from the Jerry can and I was back in business.
Fun little machine.
Attached Thumbnails
Click image for larger version

Name:	20190317_155025.jpg
Views:	42
Size:	214.6 KB
ID:	150000  
__________________
Living the country life


Learning boils down to "Repetition or the avoidance of pain", some people learn by doing, some by watching and some have to pee on the electric fence. - Norm W.

Mathew 10:36
And a man's foes shall be they of his own household
-Ironman quoting the Bible
Reply With Quote
  #4  
Old 03-18-2019, 07:17 AM
digr's Avatar
digr digr is online now
The Real Deal
 
Join Date: Apr 2005
Location: Duluth MN
Posts: 7,901
Default

Mighty fine job!!!!!!!!!!!!!!
__________________
Drawing by Smartdraw
Reply With Quote
  #5  
Old 03-18-2019, 01:58 PM
rustythe4x4's Avatar
rustythe4x4 rustythe4x4 is offline
Elite Member
 
Join Date: Oct 2010
Location: Saskatchewan
Posts: 1,535
Default

Thanks guys.
It turned out to be an excellent winter project
__________________
Living the country life


Learning boils down to "Repetition or the avoidance of pain", some people learn by doing, some by watching and some have to pee on the electric fence. - Norm W.

Mathew 10:36
And a man's foes shall be they of his own household
-Ironman quoting the Bible
Reply With Quote
Reply

Thread Tools
Display Modes

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

Forum Jump

Web Search:

All times are GMT -5. The time now is 04:15 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.