engine problems

darkOmini · 05-24-2009, 04:43 AM

i have a 1987 7mge engine with a whole in the block. from throwing a rod. so i went to buy a new engine got it all set in and when i went to hook up the wire harness did not quite match and nobody could tell me why. does anybody no why and how hard would it be to make a conversion or even put in a 2jz? any help would be awesome

Dan Swanson · 05-24-2009, 01:18 PM

First thing did you buy a 7GME that is the same year as your car. If Not that is probably why you have problem.

I own 1987 Supra with a 7GME engine, I have done som major repairs. But if you are thinking of putting a completely differnt engine in you will have more problems than you have now.

The supra manual has complete wiring diagrams, which should be of help to you.

darkOmini · 05-24-2009, 03:50 PM

they said it was a newer one but they kept telling me that it would make the swap up until the 1992 model yr. if i just swapped the head off my old one to the new block would that solve the problem?

Bru · 05-29-2010, 10:08 PM

If you are talking about the temperatrue sensors around the thermostat housing, you can use or move your old ones. Use a small amount of teflon paste or thin tape. Don't over tighten. Its easy to crack the aluminum here. Even the rear thermostat housing itself unbolts from the block. You will need a new gasket or silicone.

cre · 06-06-2010, 03:34 PM

U have no idea why this is in the FAQ (or why Bru is posting replies in a year old thread. LOL). Thread moved to the MKIII section.

05-24-2009, 04:43 AM	#1
darkOmini Stock Join Date: May 2009 Location: minnesota Posts: 2	engine problems i have a 1987 7mge engine with a whole in the block. from throwing a rod. so i went to buy a new engine got it all set in and when i went to hook up the wire harness did not quite match and nobody could tell me why. does anybody no why and how hard would it be to make a conversion or even put in a 2jz? any help would be awesome

05-24-2009, 01:18 PM	#2
Dan Swanson Stock Join Date: Oct 2008 Location: Orlando, FL Posts: 28	Engine problem First thing did you buy a 7GME that is the same year as your car. If Not that is probably why you have problem. I own 1987 Supra with a 7GME engine, I have done som major repairs. But if you are thinking of putting a completely differnt engine in you will have more problems than you have now. The supra manual has complete wiring diagrams, which should be of help to you.

06-06-2010, 03:34 PM	#5
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	U have no idea why this is in the FAQ (or why Bru is posting replies in a year old thread. LOL). Thread moved to the MKIII section. __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar --->

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05-24-2009, 03:50 PM	#3
darkOmini Stock Join Date: May 2009 Location: minnesota Posts: 2	they said it was a newer one but they kept telling me that it would make the swap up until the 1992 model yr. if i just swapped the head off my old one to the new block would that solve the problem?

05-29-2010, 10:08 PM	#4
Bru Bone Stock w Upgrades ;-) Join Date: Apr 2010 Location: Tampa Bay Posts: 210	If you are talking about the temperatrue sensors around the thermostat housing, you can use or move your old ones. Use a small amount of teflon paste or thin tape. Don't over tighten. Its easy to crack the aluminum here. Even the rear thermostat housing itself unbolts from the block. You will need a new gasket or silicone.