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Unread 02-05-2013, 12:54 PM   #1
Geronimo_1978
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1978 CJ7 
 
Join Date: May 2011
Location: Bochum, Germany
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AMC - 4bangers Engine overhall please help me

AMC - 4bangers Engine overhall please help me

Hi guys, after I've read quite a few posts here and there, overtake on the engines, I would like to conclude still take your help.
Or perhaps certainly, you can help me even further.

My engine is to be rebuilt

This engine has the following data:
AMC / Jeep engine cylinder = 4
Year = 12/08/1989
Displacement = 2500 cc
Piston diameter = 3.88

and I wanted to use the following parts:

1) AMC2.5L 150 Engine Rebuild Kit


2) 4 pistons SRP Small Block Chevy 350/400 Flat Top Pistons 144995-1 Forged, Flat, 4030 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring Grooves,

or

3) 4 pistons SRP Small Block Chevy 350/400 Flat Top Pistons 138100-1 Forged, Flat, 4155 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring Grooves,


So and now I need to know your:

1) Did any of you ever used this engine rebuild kit and how satisfied you are with it.

2) Is there possibly a better manufacturer of oil pumps as standard for this engine?

3) There is a major oil pans for the engine and if so where I have not found anything.

4) Does any of you if the cylinder heads from the AMC Jeep Cherokee 1995 1989 and are the same?

Still searching for new ROLLER ROCKER ARMS and intake valve and exhaust valves of the engine.

Sun am grateful for ever read and I look forward to plenty of great tips.


Greeting Peter

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Unread 02-05-2013, 01:34 PM   #2
baritone_mike
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Join Date: Sep 2010
Location: Puyallup, WA
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Why are you putting small block Chevy pistons in a Jeep 4 banger? Why do you need a better oil pump? Why do you need a new oil pan? What is wrong with your Cylinder head? Why are you putting roller rocker arms in a Jeep 4 banger?

If you are trying to supe up the 4 banger, stop trying and just add 2 or 4 more cylinders. If you just want it rebuilt use the factory equivalent parts.
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Unread 02-05-2013, 02:48 PM   #3
Geronimo_1978
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Thanks for your help but i want a 4banger and not a 6banger or not a 8banger.

Why do you need a new oil pan? I need this new oil pan, so I can get more oil content

What's wrong with your cylinder head? There is nothing wrong with the cylinder head, which has made ​​the year 1988 a SingelPoint carburetor and the 1994 has a multi-point injection

Why do you need a better oil pump? Thus, more oil is circulating and the lubrication is optimized.


Thanks Peter
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Unread 02-05-2013, 03:31 PM   #4
baritone_mike
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Unless Germany got a different engine you should have fuel injection on the 4banger if it was built in 1989 not a carburetor. I did a search to see if anyone had swapped MPI onto a TBI engine and could not find any info. If you want the extra 9hp and 4 ftlb of torque it is probably easier to just swap in a 91-95 4 banger, you would need the ECU and Fuel pump out off of the MPI Jeep either way.

The engine worked fine for 25 years with the factory oil pump and oil pan, which means if you do it right it will need rebuilt again in 2038. Why do you need more oil and lubrication?

What are you planning to do with this Jeep? Making a 4 banger in a Jeep fast or efficient is not worth the effort, and this is coming from a guy who has one.
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Unread 02-05-2013, 04:45 PM   #5
Chrisnvegas
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If you want to keep your 4 cyl and want more power, why not turbo? It has been done many times.

Jeep Forum Turbo threads:
https://www.google.com/search?q=jeep...w=1366&bih=643

Not sure if there is a larger aftermarket oil pan, but why not add an oil cooler? Will add some capacity and keep the oil cool at the same time. A great mod for under 75 Euro
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Unread 02-05-2013, 05:30 PM   #6
Que89YJ
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1989 YJ Wrangler 
 
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Location: Detroit, Michigan
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You need to make sure you have the right 2.5L rebuild kit. The 2.5L CJ engine was the chevy "iron duke" put in by AMC. The 87-90 2.5L is a different engine all together.
Look on http://www.4bangerjp.com/forums/
They will be able to recommend and give you feedback on specific parts for it.
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Unread 02-06-2013, 11:47 AM   #7
Geronimo_1978
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Quote:
Originally Posted by Que89YJ View Post
You need to make sure you have the right 2.5L rebuild kit. The 2.5L CJ engine was the chevy "iron duke" put in by AMC. The 87-90 2.5L is a different engine all together.
Look on http://www.4bangerjp.com/forums/
They will be able to recommend and give you feedback on specific parts for it.
Hi yes I wanted to publish the first issue but I can not register there. Sorry, unfortunately you get in there on invitation only. Would also be nice if someone could help me of you.

Thank you very much

Peter
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Unread 02-06-2013, 11:51 AM   #8
Geronimo_1978
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Join Date: May 2011
Location: Bochum, Germany
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Quote:
Originally Posted by Chrisnvegas View Post
If you want to keep your 4 cyl and want more power, why not turbo? It has been done many times.

Jeep Forum Turbo threads:
https://www.google.com/search?q=jeep...w=1366&bih=643



Not sure if there is a larger aftermarket oil pan, but why not add an oil cooler? Will add some capacity and keep the oil cool at the same time. A great mod for under 75 Euro
Yes that would be a viable way to get more performance out of the part. Should I even be going through your mind.

Thank you very much

Peter
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Unread 02-06-2013, 12:14 PM   #9
Que89YJ
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http://4bangerjp.com/forums/index.ph...c,10173.0.html
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