6.2 to 6.5TDL?

[jpinst]

I have an 87 m998 6.2 diesel and I was trying to figure out if I could make an engine swap to a 6,5 turbo diesel?

That is to say, is it a straight swap? Do I need to make some major mods? What engines are recommended and where can I get one? I want to buy a new rebuild, or new if possible.

Thanks in advance.

 

[Westech]

yeah its a bolt in, as long as you have the H1/military type 6.5 turbo. the 6.5 out of a C/K chevy will not work.

 

[superburban]

What Westech said. The turbo on a HMMWV is mounted on top of the engine, on the back. On the GM trucks, the turbo is over on the right side of the engine. It wont fit easily. I believe that the engine/turbo out of a GM van is the same as the H1/HMMWV. The 6.2 and 6.5 engines are virtually identical, externally, so the motor mounts and transmission mounts will be a direct swap. You will just have to deal with plumbing.

 

[Westech]

http://shortlinks.net/inq827 like this one

 

[Recovry4x4]

Just bought this one last month. Picking it up tomorrow.

 

[Westech]

Hey Kenny.... that would look great in my 09

 

[Recovry4x4]

Sorry, it's going in my M880 (some day).

 

[Westech]

I think I need to start sniping your bids again

 

[jpinst]

Great! Thanks for the advice. SO when I am searching for this engine, apart from the 6.5 TDL, what am I searching for? Is there a special name for this engine? Thanks!!

 

[Recovry4x4]

I'd just search in the 2815 category on GL. This is the first 6.5 turbo one I've come across on GL. I hope to evaluate it on Thursday to see exactly what I got. From there I'll have to decide if I want to use this one or my other 6.5 Turbo engine in the M880. This one may get sold if I can't find the right place for it.

 

[mightyhammer]

Should be an easy swap...keep us posted

 

[TedG]

Kenny,

Check the back block casting number (upper left side above flex plate) on that 6.5td and let me know the last 4 digits. Remember that in the late 90's, most 6.5td developed cracks (internal and external) in the block by the #8 cylinder (right rear). I hope you got a good one!

 

[Recovry4x4]

I'll check it Ted. I'm thinking it's newer than that, it's an AMG engine, not a GM

 

[mangus580]

Considering the timeframe of the 6.5 Turbo program on the humvee's, I am sure its probably newer than 2000

 

[TedG]

Agreed, but I also believe that there is an inherent flaw in the design of those blocks so be aware. The turbo favors the right bank & #8 gets hot hot. Plus the last new dep I received did not have exhaust gaskets, which I did add prior to setting in place. The answer I got was 'it was within specs'... Also, I have had a dep 6.5td with an external crack on the left front cylinder...3'' long! pour water in one end & out it ran on the other! others have had bad head gaskets & cracked heads! When I asked an amg employee about keeping that engine they said 'we are stuck with it'. So like I said/asked Kenny, please provide numbers & I'll tell what may/may not occur...just trying to help!

 

[Recovry4x4]

Looks like I'm going to have to remove the exhaust plumbing from the turbo to get the numbers. Give me a few days.

 

[TedG]

Kenny,

It should be visable by just removing the rear turbo heat sheild and the look under the left bank exhaust flex pipe. The number is on top of the block. See picture.

BTW. I have a bunch of the 6.5td #8 engines so if you need parts...let me know.

 

[Recovry4x4]

12556806 if I'm seeing right

 

[TedG]

Kenny,

Once I get home I will check all the numbers and tell you what I have found...you can also add liquid and see what happens!!! Seriously, when you can, do a compression test and inspect block for external cracks below the heads (not in that order). The picture belows shows how easy it is to spot a cracked 6.5td block!

 

[Recovry4x4]

Thanks Ted. My thoughts were to groudhop it to see if it runs and has oil pressure. Once I get it somewhat warm I was going to plug up the cooling system and pressure test it.