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This weeks mud day project cat motor surgery pics #7491241
02/10/22 01:05 PM
02/10/22 01:05 PM
Joined: Dec 2006
Posts: 2,213
central Missouri
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Bigfoot Offline OP
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Bigfoot  Offline OP
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Joined: Dec 2006
Posts: 2,213
central Missouri
[Linked Image]
[Linked Image]
Water leaking past sleeves in 3406 b Caterpillar motor

Last edited by Bigfoot; 03/03/22 09:47 PM.
Re: This weeks mud day project cat motor surgery [Re: Bigfoot] #7491296
02/10/22 02:39 PM
02/10/22 02:39 PM
Joined: Jan 2011
Posts: 529
NE Mississippi
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GRP Offline
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Joined: Jan 2011
Posts: 529
NE Mississippi
#2 piston has got some purty nozzle tracks on it! Good work!


For by grace are you saved by faith, and not of yourselves, it is the gift of God.
Re: This weeks mud day project cat motor surgery [Re: Bigfoot] #7491401
02/10/22 04:58 PM
02/10/22 04:58 PM
Joined: Apr 2008
Posts: 3,177
Albany, NY
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bobsheedy Offline
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Joined: Apr 2008
Posts: 3,177
Albany, NY

A few pictures now and then, please.

Re: This weeks mud day project cat motor surgery [Re: Bigfoot] #7491741
02/10/22 10:14 PM
02/10/22 10:14 PM
Joined: Dec 2006
Posts: 2,213
central Missouri
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Bigfoot Offline OP
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central Missouri
I got the first sleeve out and took the head to shop to get tested . It's going to be a full inframe overhaul . The sleeves aren't showing any ring groove but there is heavy porosity in the outside of the sleeves from electrolysis . I'll try to take some pics tomorrow

Re: This weeks mud day project cat motor surgery [Re: Bigfoot] #7491772
02/10/22 10:38 PM
02/10/22 10:38 PM
Joined: Mar 2010
Posts: 2,943
South Dakota
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Hydropillar Offline
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Hydropillar  Offline
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Joined: Mar 2010
Posts: 2,943
South Dakota
love a 3406 b..... little thirsty but aint they all !1


The only place you find free cheese is in a mousetrap !
Re: This weeks mud day project cat motor surgery [Re: Bigfoot] #7491779
02/10/22 10:42 PM
02/10/22 10:42 PM
Joined: Mar 2010
Posts: 2,943
South Dakota
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Hydropillar Offline
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Joined: Mar 2010
Posts: 2,943
South Dakota
if i might ask whats a inframe kit going for nowdays.... i got a big cam 4 that is good but would only make sence to go through it when i swap it out of fire truck to ?? it had liner leak too but came out of it when we ran it.... but now its been setting cpl years so i dont trust it only got 77 k miles


The only place you find free cheese is in a mousetrap !
Re: This weeks mud day project cat motor surgery [Re: Bigfoot] #7491782
02/10/22 10:45 PM
02/10/22 10:45 PM
Joined: Mar 2014
Posts: 917
Ontario, Canada
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sweetwilliam Offline
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sweetwilliam  Offline
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Joined: Mar 2014
Posts: 917
Ontario, Canada
Bigfoot is there not a standard that you use only diesel coolant to not have the piting from the coolant side?

Re: This weeks mud day project cat motor surgery [Re: Bigfoot] #7491785
02/10/22 10:46 PM
02/10/22 10:46 PM
Joined: Mar 2014
Posts: 917
Ontario, Canada
S
sweetwilliam Offline
trapper
sweetwilliam  Offline
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Joined: Mar 2014
Posts: 917
Ontario, Canada
Diesel coolant and gas coolant are different maycup

Re: This weeks mud day project cat motor surgery [Re: Bigfoot] #7491875
02/11/22 12:24 AM
02/11/22 12:24 AM
Joined: Aug 2021
Posts: 61
Alabama
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WSD Trapper Offline
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Joined: Aug 2021
Posts: 61
Alabama
Proper coolant concentration can help with the pitting on the outside of the liners. If it doesn't already have the coolant conditioner element installed you might consider getting one. Folliw the recommended change intervals from Cat. A lot of the external pitting is caused by a form of cavation erosion. Air bubbles in the coolant "explode" on the surface of the liner and over time the result is erosion into the liner wall. Once a small place gets started it begins to collect more bubbles which in turn causes more damage. Same thing also happens to engine bearings if the oil system becomes aerated. Somewhere i still have all the training publications that explain all this in detail. Worked on hundreds and hundreds of 3406 Cat engines over 30 years. Maybe not the most fuel efficient but they are fairly simple and treated right will run for a long time.

Re: This weeks mud day project cat motor surgery [Re: WSD Trapper] #7491920
02/11/22 01:21 AM
02/11/22 01:21 AM
Joined: Mar 2010
Posts: 2,943
South Dakota
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Hydropillar Offline
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Joined: Mar 2010
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South Dakota
Originally Posted by WSD Trapper
Proper coolant concentration can help with the pitting on the outside of the liners. If it doesn't already have the coolant conditioner element installed you might consider getting one. Folliw the recommended change intervals from Cat. A lot of the external pitting is caused by a form of cavation erosion. Air bubbles in the coolant "explode" on the surface of the liner and over time the result is erosion into the liner wall. Once a small place gets started it begins to collect more bubbles which in turn causes more damage. Same thing also happens to engine bearings if the oil system becomes aerated. Somewhere i still have all the training publications that explain all this in detail. Worked on hundreds and hundreds of 3406 Cat engines over 30 years. Maybe not the most fuel efficient but they are fairly simple and treated right will run for a long time.

well said..... and when ya step on the loud peddal they pull !!


The only place you find free cheese is in a mousetrap !
Re: This weeks mud day project cat motor surgery [Re: Bigfoot] #7491952
02/11/22 05:41 AM
02/11/22 05:41 AM
Joined: Dec 2006
Posts: 2,213
central Missouri
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Bigfoot Offline OP
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Joined: Dec 2006
Posts: 2,213
central Missouri
When I got this truck the coolant was old and nasty . I've changed it every other year since I've had it . I put a good extended life coolant .

Re: This weeks mud day project cat motor surgery [Re: WSD Trapper] #7493409
02/12/22 10:54 AM
02/12/22 10:54 AM
Joined: Dec 2006
Posts: 2,213
central Missouri
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Bigfoot Offline OP
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Joined: Dec 2006
Posts: 2,213
central Missouri
Originally Posted by WSD Trapper
Proper coolant concentration can help with the pitting on the outside of the liners. If it doesn't already have the coolant conditioner element installed you might consider getting one. Folliw the recommended change intervals from Cat. A lot of the external pitting is caused by a form of cavation erosion. Air bubbles in the coolant "explode" on the surface of the liner and over time the result is erosion into the liner wall. Once a small place gets started it begins to collect more bubbles which in turn causes more damage. Same thing also happens to engine bearings if the oil system becomes aerated. Somewhere i still have all the training publications that explain all this in detail. Worked on hundreds and hundreds of 3406 Cat engines over 30 years. Maybe not the most fuel efficient but they are fairly simple and treated right will run for a long time.

Which inframe kit is your favorite

Re: This weeks mud day project cat motor surgery [Re: Bigfoot] #7493737
02/12/22 04:27 PM
02/12/22 04:27 PM
Joined: Aug 2021
Posts: 61
Alabama
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WSD Trapper Offline
trapper
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Joined: Aug 2021
Posts: 61
Alabama
Since I worked at a Cat dealer we only dealt with genuine Cat parts. Inframe repair generally only means that the engine wasn't removed for repair. Even the Cat kits have various levels of parts depending on the extent of the repair. A very basic inframe repair would just be new rod an main bearings, new or reconditioned cylinder packs, and seals and gaskets to reassemble. Depending on your budget, expected service life, hours/miles on engine, etc you can go from there to include rebuild, replace, or test other components like the oil pump, cylinder head, turbo, injectors. Not sure if I answered your question or not. All of our work was warrantied, parts and labor. All genuine Cat parts. All engines were dyno tested after repair too.

Re: This weeks mud day project cat motor surgery [Re: Bigfoot] #7493744
02/12/22 04:32 PM
02/12/22 04:32 PM
Joined: Feb 2010
Posts: 19,691
pa
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hippie Offline
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pa
Originally Posted by Bigfoot
When I got this truck the coolant was old and nasty . I've changed it every other year since I've had it . I put a good extended life coolant .


Not implying you do, but always mix water with antifreeze. In its pure state, it doesn't work.

Re: This weeks mud day project cat motor surgery [Re: Bigfoot] #7493753
02/12/22 04:42 PM
02/12/22 04:42 PM
Joined: Dec 2006
Posts: 3,836
Pa
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Wright Brothers Offline
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Pretty interesting.
I did one, 4cyl tracked high lift.
Rod bearings, crank cut, rad, and batts.
Little bugger was big $$$ for parts.





Re: This weeks mud day project cat motor surgery [Re: Bigfoot] #7495586
02/14/22 12:14 AM
02/14/22 12:14 AM
Joined: Dec 2006
Posts: 2,213
central Missouri
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Bigfoot Offline OP
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central Missouri
I mix concentrate with distilled water or use a pre dilute antifreeze.

Re: This weeks mud day project cat motor surgery [Re: Bigfoot] #7495600
02/14/22 12:31 AM
02/14/22 12:31 AM
Joined: Aug 2021
Posts: 61
Alabama
W
WSD Trapper Offline
trapper
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Joined: Aug 2021
Posts: 61
Alabama
Coolant conditioner elements help to maintain the proper concentration of the essential components of the antifreeze. The ones that prevent corrosion, etc. Following the recommended mixing guidelines when using concentrate is important. Not just in relation to freezing point either. Too high of a concentration can cause as many problems as too low of a concentration. Premix is the easiest to use but there is not always truth in advertising. Use a well known brand and skip the bargin stuff.

Re: This weeks mud day project cat motor surgery [Re: Bigfoot] #7496186
02/14/22 05:22 PM
02/14/22 05:22 PM
Joined: Dec 2006
Posts: 2,213
central Missouri
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Bigfoot Offline OP
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Joined: Dec 2006
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central Missouri
Shell , cat ,mobile one

Re: This weeks mud day project cat motor surgery [Re: Bigfoot] #7496194
02/14/22 05:36 PM
02/14/22 05:36 PM
Joined: Dec 2006
Posts: 29,751
williamsburg ks
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danny clifton Offline
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danny clifton  Offline
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Joined: Dec 2006
Posts: 29,751
williamsburg ks
Its just a machine. Even a 3406 needs a wrench put to it time to time.

I got the time to come give you a hand right now. Wish I wasn't still hobbling around.


Those who would give up essential liberty, to purchase a little temporary safety, deserve neither liberty nor safety. Benjamin Franklin (1706-1790)
Re: This weeks mud day project cat motor surgery [Re: Bigfoot] #7496472
02/14/22 09:47 PM
02/14/22 09:47 PM
Joined: Dec 2006
Posts: 2,213
central Missouri
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Bigfoot Offline OP
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Posts: 2,213
central Missouri
I just ordered the parts today . I'm going to try a Heavy and Highway kit . $2053 with a two year warranty . Not the cheapest and sure as heck not the highest .

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