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  #1  
Old 05-08-2006, 01:20 AM
Jman Jman is offline
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6.2l in fsj?

hey been lurking awhile, thought i'd join up. anyway anybody ever put a 6.2l in a fsj? any problems you've run into, or tips?

I've got a good running 6.2 in a suburban and another 6.2 for parts, and i just picked up a sm465 and an np205.
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Old 05-08-2006, 04:28 AM
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Yes its been done and is supposed to be pretty easy. Do a search for 6.2 diesel. There are some good threads on the subject. I am thinking of doing the same thing. Or I might hold out for a 3.9 cummins...
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  #3  
Old 05-08-2006, 06:21 AM
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shackwrrr shackwrrr is offline
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yea look up ohioJ20 iirc he has done it to his j20 and he is planning on doing it to his waggy
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Old 05-08-2006, 06:29 AM
joe joe is offline
 
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It's been done here a couple of times and I think one or two ongoing swaps but don't know if there's ever been a write-up done. General consensus is that's it's one of the easier swaps especially since you have an entire donor vehicle. So far as using the 205 it depends on what year Wag you have regarding front differential location. I believe the 205 is pass side output so easiest would be in a 79 or earlier Wag with the front diff on the pass side. 80 and later it's on the drivers side.
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Old 05-15-2006, 12:10 AM
Jman Jman is offline
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searched through everything i could find, got a better idea of how it's going to work now, but it raised some more questions.

i want to use the stock 6.2l radiator, but i need a better idea of how they fabbed the front clip to fit. if anybody has a pic that would be great.

i have a general idea of how a turbo works but no idea how to mount one up or keep it alive.

im not doing a complete swap over from my parts rig, Im going to use a sm465/np205 instead of the th400/np208, but im not sure which bellhousing i should use. can i get away with using a stock sbc bellhousing, if i can what starter should i use? or what kind of clutch for that matter. or do i need to find one from behind a 6.2/6.5, that fits the diesel starter?

the truck im swapping into is a 1979 j10 w/ 360, th400, q-trac w/ low range and d44's front and rear
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Old 05-15-2006, 05:24 AM
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I bought a M1028 just for the drive line (6.2/400/205/D60/14B). This is all going in the J10. I may need a shoe horn but it should fit.

I may need to swap the trany for either a th700r4 or a nv4500 for the OD. The axles are 4.56 gears with a limited slip in front and a Detroit locker in rear.

The 6.2L use standard SBC engine mounts with are available for the FSJs.
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Old 05-15-2006, 06:38 AM
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the 6.2 uses the same bellhousing pattern as the SBC and BBC. the diesel starter will fit just fine even with that BH (unless it is an old grain truck bellhousing where the starter bolts to IT and not the block). the only hurdle to your plan is the flywheel. personally, i would take the SBC flywheel adn the stock 6.2 flexplate to a machine shop, have them figure out the amount of imbalance for the 6.2, and duplicate that amount of imbalance on the SBC flywheel. i have a 6.2/700/208 bub with a gale banks turbo kit on it. no brain surgery involved... it is good that you have the whole truck, even if you are using different trans and t-case, though you may be wishing for an overdrive when it is done (or for 3.08 axles gears)

peace
Dave
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  #8  
Old 05-15-2006, 08:26 PM
Jman Jman is offline
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cool, that will make it alot easier to find a bellhousing.
funny thing is one of my parts rigs had a 700r4, but i sold it.
i have thought about an overdrive,specifically the ranger gear splitter
http://www.high-impact.net/transmiss...roverdrive.htm.

the more shifters the better,well i think so.

Last edited by Jman : 05-15-2006 at 08:33 PM.
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  #9  
Old 05-15-2006, 08:27 PM
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jlchicot, is the 3.9 the diesel used in the Dodge? Have there ever been diesel's connected tot he 727 in any of the trucks offered by Dodge (or others?) Thanks!
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  #10  
Old 05-15-2006, 09:30 PM
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there was a nissan diesel mated to a odd boltpattern 727 in 76-80 scouts, but even with the turbo it would not be a good match for a fsj
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  #11  
Old 05-15-2006, 09:31 PM
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crazydog crazydog is offline
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Quote:
Originally Posted by neo
jlchicot, is the 3.9 the diesel used in the Dodge? Have there ever been diesel's connected tot he 727 in any of the trucks offered by Dodge (or others?) Thanks!

No, Dodge uses the 5.9 Cummins. The 3.9 is a four cylinder version that shares many parts with the 5.9.

Best tranny to use would be a 47RH.
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Last edited by crazydog : 05-15-2006 at 09:35 PM.
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  #12  
Old 05-15-2006, 11:29 PM
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to take this diesel thread way out there.... 727's were used in Iveco trucks with Deutz air-cooled diesels, and some even made it over here...

peace
Dave
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  #13  
Old 05-16-2006, 04:03 AM
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Neo, The 3.9 comes in alot of panel vans like the frito lay trucks. Most That ive seen on the net have either a Th400 or a GM 4 speed.
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  #14  
Old 05-16-2006, 08:19 AM
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Sorry for my ignorance, but I don't really know anything about the 5.9C or the 3.9C, both are very interteresting since I have been really wanting to do the diesel conversion myself. I have been lurking around looking for the 6.2, but so far no luck. I really want to do this, but have to weigh it against the almighty $$ and the better half that simply does not understand why I want to change something that aint broke!! Thanks!!
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Pain is Weakness leaving the body...
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96 GMC burb w6.5 TD, AFE intake, guaes, 3" downpipe and crossover, no cat or muffler
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  #15  
Old 05-16-2006, 08:35 AM
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There are a number of 6.2/6.5 FSJ's running around Texas and at least one awesome M715 with a 6BT Cummins conversion that is a daily driver and work horse.

I have done the conversion before and have been involved in another Wag conversion. Going to drop a built 6.2 in my Cherokee WT after the Ouray invasion.

Straight forward conversion, no huge issues, plan it out in advance and think everything through and you'll have no problems. Always much better to buy a complete donor vehicle which will save you time and a lot of money in the long run.

Any questions feel free to IM me.
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  #16  
Old 05-16-2006, 06:48 PM
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I'd go for the 4b(t), I think the 6bt is overkill. You'll be needing an upgraded front axle and possibly a reinforced front frame.... If memory serves the 4b is 700lbs, the 6bt is crazy heavy.

Personally, I'd throw a mercedes diesel in there if I could figger out how to mate it to my TF727.
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  #17  
Old 05-16-2006, 08:03 PM
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Quote:
Originally Posted by Max Power
I'd go for the 4b(t), I think the 6bt is overkill. You'll be needing an upgraded front axle and possibly a reinforced front frame.... If memory serves the 4b is 700lbs, the 6bt is crazy heavy.

Personally, I'd throw a mercedes diesel in there if I could figger out how to mate it to my TF727.

Maybe one of the adapter companies will come up with something since more people will be looking at diesel conversions with fuel prices and such.
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  #18  
Old 05-16-2006, 09:46 PM
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if i do a benz diesel in a waggy, i will either use the MB auto trans (4speed auto, deep first gear, 1 to 1 4th) and make the FSJ t-case into a divorced unit, or use a toyota manual and t-case...

the benz diesels are great, but i feel that they really need the deep first gear to get any vehicle of significant mass moving... and the 727 lacks a little in the first gear department...

peace
Dave
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  #19  
Old 05-19-2006, 08:13 PM
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I found one!!

Hey guys, I finally found a potential doner for the diesel (6.2) conversion. It is a 82 and I am a little concerend about the 82 cause of what I hear about the piston skirts. I can't read the odo and it is probably not accurate anyway. Everything is in tact and I can get the whole thing for $400. It supposedly ran when it was brought in, but this is unverified. It currently won't start, so I really can't tell the condition. My prefernce is to utilize the 727 tranny and adapt the block to the tranny. The advanced adapter is $500 according to the web page. So now I am up to $900. Any guidance on motor mounts and any ancilliary items I might also need? Is the 82 model even worth messing with or should I forgo for an 83 and up cause the piston issue? Also, what is the difference in the internall ballanced vs externally ballanced and how would I know? Is this the harmonic ballanced? Dave mentioned something about imballance in the flywheel/flexplate and I honestly did not know what that meant? Any guidance/suggestions or ridicule is appreciated.

Jeff
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Pain is Weakness leaving the body...
89 Waggy with GM6.2 banks turbo, guages, 700R4, 4" BD lift, NP208 t-case and lots of blood and spit.
96 GMC burb w6.5 TD, AFE intake, guaes, 3" downpipe and crossover, no cat or muffler
95 Defender 90 - bone stock
2003 G500 (wifes) - I hate mercedes!!
1970 Goat Convertible - resto nearing completion

Last edited by neo : 05-19-2006 at 08:17 PM.
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  #20  
Old 05-19-2006, 08:35 PM
tndonor tndonor is offline
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6.2 jeep

I bought a 80 J10 with a 6.2 in it. It does great. It doesnt win any speed contests but most jeeps dont anyway. The best thing is I have gotten 23 MPG on the interstate! Its almost worth it just for the people who correct you when you try and put Diesel in your rig.
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