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Author Topic: Cat 51 hp. Headless cat  (Read 9791 times)

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Offline FloridaMike

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Re: Cat 51 hp. Headless cat
« Reply #60 on: April 25, 2017, 08:32:06 am »
Those cylinders look to be pretty close together!  Reminds me of the 400 small block Chevy.
Mike

Offline jaciausa

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Re: Cat 51 hp. Headless cat
« Reply #61 on: April 25, 2017, 09:32:02 am »
Marty, Thanks for the information, There are no pieces of the gasket overhanging block on my mill except for one small place.
 I guess I need to add this to my list of bad news on this mill. I can not find any carbon on the oil filler cap! or telltale sign of damage. So I guess that is the good news, unless I am still being over optimistic that I do not have a permanent problem. What is the next steps in determining whether motor is damaged. Also what year or date did this first become known to WM?

Offline jaciausa

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Re: Cat 51 hp. Headless cat
« Reply #62 on: April 26, 2017, 08:44:43 pm »
I guess I should take the valve cover off to see if I can spot any carbon deposits. I believe any future owners of a used 51hp cat sawmill should be given a heads up of this possible problem with the gasket.
 
This really affects the value of this mill or any with the problem engines. I am not convinced that all of the old gasketed cats will have this problem. Some of the FF owners are not having any problems. Possibly a bad batch of the old head gaskets could have doomed only some of these engines? I guess I have to replace the head gasket to protect my investment, even if it shows no signs of carbon. Even then I would need to document that it has no problem before it is changed.

Offline petefrom bearswamp

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Re: Cat 51 hp. Headless cat
« Reply #63 on: May 03, 2017, 06:44:42 pm »
Talked to Barry at WM Northeast in Hannibal today.
Told me the problems he has seen are with the early perkapillars 2004 to 2006.
Mine is a 2008 so I guess I am ok.
I will still inspect for carbon deposits often tho.
On another note I am going to try to replace my pan gasket with the good old permatex red form a gasket by rotating the engine on the pivot points to see if i can get the pan off without removing the engine.
Barry said the oil pump may interfere but I am going to try.
LT40SHDD51
Kubota 8540 tractor, Farmi winch
Kubota 900 RTV
Polaris 550 Sportsman ATV
1 Husky 1 Echo
241 acres of woodland

Offline MartyParsons

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Re: Cat 51 hp. Headless cat
« Reply #64 on: May 03, 2017, 09:40:27 pm »
Hello,
   Never liked using permatex on the oil pan gaskets. If you get a stringer of gasket material inside and it lands inside the pan it could be an issue. The stringer will go through the oil screen and then get stuck in the crank. I have seen this on an engine and the rod was blue from lack of oil. I know they sometimes use no gasket on the pan just the permatex right from the factory. So just something to think about.

Marty
A pessimist sees difficulty in every opportunity; an optimist sees opportunity in every difficulty. -Winston Churchill

Offline petefrom bearswamp

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Re: Cat 51 hp. Headless cat
« Reply #65 on: May 04, 2017, 07:47:08 am »
More great advice from Marty!
Thanks
LT40SHDD51
Kubota 8540 tractor, Farmi winch
Kubota 900 RTV
Polaris 550 Sportsman ATV
1 Husky 1 Echo
241 acres of woodland

Offline woodworker9

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Re: Cat 51 hp. Headless cat
« Reply #66 on: May 04, 2017, 08:32:13 am »
I have been using Loctite red high heat gasket maker (forget the number, but I can check in the shop if you need it) on rebuilds for a while now, and love the stuff.  No worries about anything breaking loose and clogging up the works.

Stuff works great, and is excellent under high pressure, too.  My Kearney and Trecker mill was leaking everywhere like a sieve, and I used this stuff when I rebuilt it.  No leaks anywhere now.
03' LT40HD25 Kohler hydraulic w/ accuset
MS 441, MS 290, New Holland L185

Offline jaciausa

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Re: Cat 51 hp. Headless cat
« Reply #67 on: May 04, 2017, 12:02:02 pm »
Talked to Indy to try to find a period of time that the problems ended.
 I do not know what to do for sure. I guess I will have someone remove valve
 cover and inspect for signs of future problems. I know my mill was produced
 and left factory on 7-24-06. It has a serial number on the engine of
 G7 M 00685 and an arraignment code of 216-6386. I do not know how to read
 either of these at this time. It is the engine that came with mill. This is one
 thing i did not want to track down after purchasing.
 Serial Number and arrangement should tell the story.


Offline Davek603

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Re: Cat 51 hp. Headless cat
« Reply #68 on: May 04, 2017, 02:19:31 pm »
I have been a mechanic all my life and own a garage. If you have to use a form a gasket I strongly recommend you use "the right stuff" I have not found another that was even close in quality. We buy it in the small caulking gun tubes. I have several friends, one who is a heavy duty road mechanic who have tried it and swear by it now as well.
Obviously a real gasket is my first choice but many applications now don't use them.
Good luck!
Woodmizer LT50 and lots of iron to go with it

Offline petefrom bearswamp

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Re: Cat 51 hp. Headless cat
« Reply #69 on: May 04, 2017, 06:15:03 pm »
Thanks everybody
My friend who is knowledgeable and who  we call dickopedia says the red stuff is great.
LT40SHDD51
Kubota 8540 tractor, Farmi winch
Kubota 900 RTV
Polaris 550 Sportsman ATV
1 Husky 1 Echo
241 acres of woodland

Offline jaciausa

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Re: Cat 51 hp. Headless cat
« Reply #70 on: May 04, 2017, 10:00:21 pm »
Are the pan gaskets unavailable?

Offline Deese

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Re: Cat 51 hp. Headless cat
« Reply #71 on: May 18, 2017, 09:59:13 am »
I just now ordered the crank support kit for mine. Woodmizer is currently out of stock, so it will be a short (hopefully) while before it arrives.

I got new air filter(s) delivered yesterday and went to change it....
Something was a little off  ???
No big deal, they are sending the correct one right away.

I was just told that my year 2004 didn't use the 2-filter system, just the one, shorter one.
So anyways...it's on the way.
 

 
Sawed 4 years with EZ Boardwalk Jr 13hp. 2004 LT40 Super 51HP, 1975 Case Tractor, Cooks Cat Claw Sharpener, Cooks Single Tooth Setter, Stihl MS 440, Stihl MS 250, 60" Logrite

Offline Magicman

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Re: Cat 51 hp. Headless cat
« Reply #72 on: May 18, 2017, 07:22:28 pm »
Probably the same air filter that my John Deere uses.
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Offline paul case

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Re: Cat 51 hp. Headless cat
« Reply #73 on: May 18, 2017, 10:23:54 pm »
Probably the same air filter that my John Deere uses.

Or my Case 580 or my IH 966 or 1086, Nissan 60, or clark 6000 pound forklifts all have a filter similiar to the shorter one with the air fins on it.

PC
life is too short to be too serious. (some idiot)
2013 LT40SHE25 and 3 blade Baker edger,  WM 94 LT40 hd E15. Cut my sawing ''teeth'' on an EZ Boardwalk
sawing oak.hickory,ERC,walnut and almost anything else that shows up.
Don't get phylosophical with me. you will loose me for sure.
pc