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Unread 11-23-2008, 02:18 PM   #211
Last Boyscout
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a picture would be a big help. is the 4.0 OBDI or OBDII? if you're not sure check the fuel rail. does it have a fuel return to the tank? if so it's an OBDI. they have to be vacuum lines since the 4.0 does not have any coolant running to the manifold. if you can post some good pics we can tell you what you have.

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Unread 11-24-2008, 12:22 PM   #212
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Photos

Pix are on photobucket. Checked Clifford manual on line and said manifolds are water heated so that probably answers my questions. But will use compressed air to verify.
http://i472.photobucket.com/albums/r...ntsjeep001.jpg
http://i472.photobucket.com/albums/r...ntsjeep002.jpg
http://i472.photobucket.com/albums/r...ntsjeep003.jpg
The engine is of unknown origin am trying to get some numbers to use to reference but have not gotten done yet, has alum valve cover and a sticker on front of valve cover. Are there other ways to determine genre of a 4.0. Injection is gone.

Last edited by clintb; 11-24-2008 at 12:59 PM..
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Unread 11-24-2008, 02:00 PM   #213
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Since I was looking a rebuilding my 258 and adding FI, this seems like a better option. With my budget I need to be able to keep my T150 trans for a while longer. Will I be able to just bolt the 4.0 right to it? I think I read somewhere I might need a different pilot bushing?
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Unread 11-24-2008, 07:09 PM   #214
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Quote:
Originally Posted by clintb View Post
Pix are on photobucket. Checked Clifford manual on line and said manifolds are water heated so that probably answers my questions. But will use compressed air to verify.



The engine is of unknown origin am trying to get some numbers to use to reference but have not gotten done yet, has alum valve cover and a sticker on front of valve cover. Are there other ways to determine genre of a 4.0. Injection is gone.
click free.
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Unread 11-25-2008, 03:05 PM   #215
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if the injection is gone you can make it what ever you want. do you have the ECM? if you do then you will want to match the ECM or buy another to go OBDI or II your choice.
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Unread 11-25-2008, 03:08 PM   #216
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VaCJ79, yes you will need a new bushing. just contact Hesco, AA, or Novak. your true question is the CPS. mod the belhousing or relocation kit.
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Unread 11-25-2008, 04:35 PM   #217
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Last, The relocation kit seems to be the easist thing to do but expensive, unless I can get it cheaper somewhere other than Hesco. I added up all the parts and its looking like 700 without the engine/ rebuild .
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Unread 11-26-2008, 06:40 AM   #218
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I too used the relocation kit. After spending the $289 and looking at some forums about modifying the bell housing I wished I grown a set and done the bell housing. If you have the engine out mounting the bell housing and fabbing a bracket for the CPS location wouldn't be very hard. You would need a 4.0 flywheel. But if you prefer to bolt on use the kit.
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Unread 11-28-2008, 06:39 PM   #219
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4.0 and oil pressure switch?

Does anyone know if the 4.0 has an oil pressure switch? I have a 4.0 put into an 80 cj7 and have no place to plug the oil pressure switch. Am thinking will have to jumper it as there is only place for pressure sender? Inless I have missed it.
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Unread 11-28-2008, 07:23 PM   #220
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Originally Posted by clintb View Post
Does anyone know if the 4.0 has an oil pressure switch? I have a 4.0 put into an 80 cj7 and have no place to plug the oil pressure switch. Am thinking will have to jumper it as there is only place for pressure sender? Inless I have missed it.
If you need it you could use a T fitting in the 4.0 block and run both the sender and the switch.
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Unread 11-28-2008, 07:52 PM   #221
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Makes sense will have to determine if is needed, from what I can gather it controls the choke. I assume to make sure the choke heater does not work unless is running?
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Unread 11-28-2008, 08:44 PM   #222
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Not sure about that one, but here is a thread about the uses for that switch.

http://www.jeepforum.com/forum/showt...anifold&page=2
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Unread 11-28-2008, 09:29 PM   #223
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Thanks: is good information in that thread. I searched and did not find this? New at forum so hopefully will learn the tricks to search and proper proticals.
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Unread 11-29-2008, 07:00 AM   #224
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No problem! Search is pretty useful. In fact I upgraded my membership just to get the advanced search!

In this case, I used the regular search the forum feature and you can see from the link I posted which contains "highlight=oil+pressure+switch+heater+manifold " that I searched for oil pressure switch heater manifold. I could have gotten there with any combination, but of course the more correct words you have the faster you will find what you are looking for.
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Unread 11-30-2008, 07:17 PM   #225
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Engine Block Number

I have found the block number for the engine in this hybrid that I bought.
It is 506MX01 Or possibly 50bMXDI Hard to tell for sure. Does anyone have a location of a block cross reference. If not anyone know what this may be from?


Just found a web site that would lead me to believe is
1995 built June 242 MPI built 1st day of month.
5 06 MX 01
site is: http://www.amcrc.com/tech/engine.html

Last edited by clintb; 11-30-2008 at 07:45 PM..
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