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Unread 06-22-2009, 05:01 PM   #1
Cyberknox
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2004 TJ Wrangler 
 
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YJ 2.5 Engine mount brackets

I have hit a stumbling block while trying to drop my 2.5 back into my YJ. I had a rusty 94 that I yanked the guts from and I have a 90 YJ 2.5 body and frame it is all going into. I was in the process of dropping the engine in when I found out the hard way that the engine mount brackets are not the same. I am hoping someone has run into this exact problem and found a viable solution for it. Currently the brackets on my 94 2.5 are too wide for the 90 mounting isolators from drivers side to passenger side. The driver side looks like the correct width, but the passenger side is too wide for the isolator.

Does anyone know if the engine mount brackets for an 87-90 2.5 will bolt to a 91-95 2.5 block? Also if so does anyone have any available for sale?

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Unread 06-22-2009, 05:05 PM   #2
SteveJcoYJ
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the passengers side has a bracket that sits between the frame support and the actual motor mount

http://browndogindustries.com/cr2569...ortsmmmml.aspx

87-90 didn't have one, but in 91 they started using them. the frames are the same, the actual mount off the motors are different IIRC. So, you should just need to put in this cradle.
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Unread 06-22-2009, 07:30 PM   #3
Cyberknox
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Unfortunately that won't work because it has a bolt on the bottom of it in the middle. On my 94 frame the passenger side has a hole underneath the frame mount to access that bolt, but on the 90 the same hole is not there on the passenger side. When I ordered the new mounts initially I had to get the ones for my 90 frame.

http://www.quadratec.com/products/56003_02.htm

They are different than the 94. My stock 94 has the same bolt on the bottom where the 90 does not have the bolt on the bottom. I will try to get pictures soon so that will make more sense. Sadly I had the original 2.5 that came out of the 90 and sold it before I had a clue they were different.

You can see the difference a little in this picture for the 91-95. The passenger side one is wider and sits farther out on the frame than on the 90.

http://www.quadratec.com/products/56003_04.htm
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Unread 06-23-2009, 05:56 AM   #4
TheRealOldjeep
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If I understand what you are saying -
Just stick some washers in between the sides of the bracket and the isolator. Won't hurt anything.

If I didn't understand what you are saying, then take a picture.
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Unread 06-23-2009, 06:06 AM   #5
Cyberknox
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I will get some pictures tonight. I was thinking the same thing with the washers, but the only issue then is the passenger side still won't line up with the 90 mount. It looks like the drivers side may line up fine, but either way I will get pictures tonight and it will make more sense than I can describe it. Thanks for the idea.

I am hoping if I cannot find a bracket off a 87-90 (if it will even be the same bolt pattern on the block) that I can drill the 94 bracket and just use it with washers.
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Unread 06-23-2009, 01:50 PM   #6
SteveJcoYJ
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Quote:
Originally Posted by Cyberknox View Post
Unfortunately that won't work because it has a bolt on the bottom of it in the middle. On my 94 frame the passenger side has a hole underneath the frame mount to access that bolt, but on the 90 the same hole is not there on the passenger side. When I ordered the new mounts initially I had to get the ones for my 90 frame.

http://www.quadratec.com/products/56003_02.htm

They are different than the 94. My stock 94 has the same bolt on the bottom where the 90 does not have the bolt on the bottom. I will try to get pictures soon so that will make more sense. Sadly I had the original 2.5 that came out of the 90 and sold it before I had a clue they were different.

You can see the difference a little in this picture for the 91-95. The passenger side one is wider and sits farther out on the frame than on the 90.

http://www.quadratec.com/products/56003_04.htm
why can't he drill a hole through then ?
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Unread 06-23-2009, 06:21 PM   #7
Matt_vs_YJ
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Quote:
Originally Posted by Cyberknox View Post
I am hoping if I cannot find a bracket off a 87-90 (if it will even be the same bolt pattern on the block) that I can drill the 94 bracket and just use it with washers.
The 87-90 brackets will fit the 94 block just fine, that's the exact thing I did in my YJ. If you can't find some OEM brackets, maybe Brown Dog can make some that will work for you.
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Unread 06-23-2009, 06:55 PM   #8
Cyberknox
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I finally have some pictures of my ordeal.

The first picture shows the 94 frame under side looking up on the engine mounts. The passenger side has an access hole underneath to get to the nut that holds the plate the isolator mounts to on that side. The difference on the 90 frame is it is solid underneath and there is a small area that would be even hard to get a wrench on.



This picture shows (not well, sorry) the top of the passenger mount on the 90 frame. There is no hole for the plate to go through for the 94 plate and isolator. I know I could just drill a hole and mount it, but I have por15'd my frame and do not want to drill into it if I can help it.



Here is the 94 isolator (left) and the 90 isolator (right) side by side. You can see the plate the 94 sits on where the 90 just bolts directly to the frame.



This is with the driver side bolted in and the transmission mount lined up on the skid plate and ready to be bolted in with the 94 bracket on the block.



and a shot from the front right tire.



Now I am definitely in search of a bracket since I managed to break an ear off the passenger side while wrestling it into place. So if anyone has one they would sell I would gladly take it off your hands.
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Unread 06-24-2009, 05:50 AM   #9
Cyberknox
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Quote:
Originally Posted by Matt_vs_YJ View Post
The 87-90 brackets will fit the 94 block just fine, that's the exact thing I did in my YJ. If you can't find some OEM brackets, maybe Brown Dog can make some that will work for you.
Thank you very much for confirming that! Now I just need to hunt some down.
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Unread 01-31-2012, 02:22 PM   #10
mh31792
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does anyone know where i can get an engine mount bracket for a 92 yj?
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Unread 01-31-2013, 05:44 PM   #11
rgarza203
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I'm in the same boat, I need a set of the brackets for a 1992 jeep wrangler, going back to the 2.5l. Please help

Last edited by rgarza203; 02-16-2013 at 08:18 PM..
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Unread 02-16-2013, 08:21 PM   #12
rgarza203
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Hey great news I just ordered a set of frame pylons from AMC 4x4 in Phoenix, they were just 70 bucks, awesome service. So if you are out of luck for some frame phylons like I was then contact them.
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Unread 02-16-2013, 10:01 PM   #13
SnowdogMarc
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If you still have your old motor you should be able to just swap the mounts over. I swapped a 94 MPI 2.5 into my 88 and just had to take the mounts from my old motor and put them on the 94 for it to bolt right in.
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Unread 02-17-2013, 04:03 AM   #14
jeep63
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Quote:
Originally Posted by mh31792
does anyone know where i can get an engine mount bracket for a 92 yj?
Pm sent.
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Unread 02-17-2013, 04:04 AM   #15
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Quote:
Originally Posted by rgarza203
I'm in the same boat, I need a set of the brackets for a 1992 jeep wrangler, going back to the 2.5l. Please help
Pm sent
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