Pulling 250 Motor

[acme66]

Liner failure in truck #2. We think it will be faster to swap in a motor from truck #3 than it will be to switch all the tour stuff over from one to the other. Right now I have two people searching TMs on how to separate the transmission from the motor in the truck rather than pulling them as a pair but so far I haven't found it. Has anyone pulled them separately before, can it be done? Anyone have the relevant TM section bookmarked? I have a mound of PDF files here and it has been a slow search so far.

I think we are down to the point of separating the first motor with the trans held up in place.

Ken

 

[WillWagner]

You can have a liner done in like 6 hours on a non turbo 855. Swapping an engine will be a couple of days

 

[Scar59]

You can have a liner done in like 6 hours on a non turbo 855. Swapping an engine will be a couple of days

-the NHC 250 was designed to be maintained/repaired in frame. Liner kits and piston (if needed) are available.

 

[WillWagner]

I didn't know that

 

[Gamagoat1]

-the NHC 250 was designed to be maintained/repaired in frame. Liner kits and piston (if needed) are available.

Where? Detroit doesn't know about them. (that's what they say anyway)

 

[Bandit02]

I wonder if the trans unbolts through the hole once the starter is off like some vehicles. I wouldn't unbolt the trans and just yank it off I think the torque converter stays on the flex plate.

 

[simp5782]

Pull the transmission with it. It is a lot easier. Typical cummins the torque converter nuts are accessed thru the starter hole. It should only take you about 5 hours to have the engine out. If that.

CARQUEST Liner kit 226-1747 this includes Piston/Liner/Rings. It is listed in the 5 ton parts spreadsheet. I am sure there is a carquest or their replacement in Thompson Falls. I never really paid attention when I went thru Plains.

 

[simp5782]

Additional Part numbers for the reline kit

​

226-1747​

2815004042910​

3801392​

3801795​

3804349​

AR06674​

AR51358​

AR6674​

226-1747​

2815000057629​

000057629​

00-005-7629​

 

[porkysplace]

Additional Part numbers for the reline kit

​

226-1747​

2815004042910​

3801392​

3801795​

3804349​

AR06674​

AR51358​

AR6674​

226-1747​

2815000057629​

000057629​

00-005-7629​

All those links take you to a blank search page.

 

[SLOrazorsedge]

In-frame is the way to go as long as you didn't have a bunch of shrapnel run thru the motor. Send your head out for recon while your pulling the jug.

 

[simp5782]

Were not suppose to be links. Just highlighted part numbers

Sent from my SM-G860P using Tapatalk

 

[acme66]

I pulled and swapped motors as the fastest and cheapest way to get the truck back in action and making money. We have long shipping times here in Montana. Took longer than expected by a day or two but I learned some valuable lessons. Like I learned how to make getting the PTO off and on fast and easy but we haven't got internet out here yet and explaining it is too slow from my phone.

Ken

Sent from my SCH-I535 using Tapatalk

 

[Scar59]

Where? Detroit doesn't know about them. (that's what they say anyway)

Cummins would be the place to contact, I've seen the piston/liner kits advertized on the web, mil surplus, I think someone on SS had them also. Drop the oil pan and pull the head. The kit comes with a piston assembly, wrist pin and liner/seals.

 

[fuzzytoaster]

Having just done a 250 swap take the transmission out with the engine. You certainly can just remove the engine but mating it back up is a PITA, you will be using the transmission access panel a lot to reattach it. Ideally a liner/cylinder rebuild is idea but do what you have to go to get it back into service. When I priced for a cylinder rebuild kit I about dropped my jaw on the floor so I bought a running take-out engine for less than half the cost and swapped it. Took roughly 20 hours working on and off, this was mainly due to having to swap over all the pullies and accessories.

 

[M35A2-AZ]

I think it would be easier to pull the motor with the transmission also.

 

[gimpyrobb]

If you drop JUST ONE BOLT while doing the torque converter to flywheel, you will not have a good day. Don't ask me how I know.

The job sounds like its done, but for those who read this later, pull the trans WITH the motor and do the swap out of the truck.

 

[Csm Davis]

If you drop JUST ONE BOLT while doing the torque converter to flywheel, you will not have a good day. Don't ask me how I know.

The job sounds like its done, but for those who read this later, pull the trans WITH the motor and do the swap out of the truck.

The gimpy one speaks the truth, you have to get the dropped bolt out and even with an inspection camera with a magnet on it it is almost impossible to get it out.

sent from my decrepit fingers