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Jdm motor, 0 compression....

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Old 06-06-04, 10:52 AM
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Unhappy Jdm motor, 0 compression....

I just bought a jdm motor from a shop and found out yesterday that the rear rotor was not making any compression, 0, the needle didnt even move..... Anyways, they kept telling me that since the engine has been sitting there, that its normal for it to have low compression, until you crank it up, then itll start rising...
Like I understand what they are saying, but You cant really start it with 0 compression in the rear, and even if you do manage to get the first rotor popping, how you gunna get the rear to run?? I left atf in there since 5pm yesterday and then spun it at 4 am and still nothing....
Hes cool though and they gunna give me another engine, but damn I was surprised that that **** was fuked up when it looks so damn new.... All the harness clips are fukin awesome looks liike it came out from mazda like 2 years ago, the turbo had 0 shaft play, nothing at all solid as a rock, all the bolts were in fukin awesome condition, had that nice bronze type of color..
The housings where in good condition, and the apex seals looked like new, which got me thinking why it would have no compression??? hopefully one of yall can answer my question....
Old 06-06-04, 12:56 PM
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did u torn it apart ?
Old 06-06-04, 01:02 PM
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hmm
Old 06-06-04, 01:21 PM
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ive seen a couple where the goo in the engine solidifies over time, one was a new mana motor. its probable over time it would have freed up and worked, but its also probable the coolant or rotor oil seals would have been bad too
Old 06-06-04, 09:31 PM
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naw I didnt tear it apart, cus it was under warranty... so I just took it back and got a 90 motor.... I really wanted an 88 motor to facilitate installation, but o welll... I guess Ill have to see how I rig **** up.... one thing I forgot was the pressure sensor.... but o well Ill pik that up tommorrow.... I wanna see how this thing starts.. and runs.... havent done a compression test yet, but it sounds pretty good.... the turbo has a lil play, and the connectors arent as nice as the other motor, so you can tell it has a lil bit more miles on it.... but over all Im pretty sure that its gunna be nice... tommorrow I should get the k2rd block off plates and should make connecting **** more easy... only thing that got me worried is the TPS... wanna see how imma get that **** going...
Old 06-06-04, 10:07 PM
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carbon lock, internal rust?
Old 06-06-04, 10:09 PM
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yah, they want you to install it so by that time they can just say you killed it or the warranty will be up.
Old 06-06-04, 11:47 PM
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Originally posted by CompuBob
yah, they want you to install it so by that time they can just say you killed it or the warranty will be up.
Naw the guy was cool as ***... I got mad at first but then he ended up "hooking me up" with a 90 motor... he told me on sat when I bought the motor, that if I want I could take it back today, or install it and see if the seals free up and actualy hold compression and if not take it back to him... either way its cool... hopefully this **** goes good... Imma call it a TII swap on a budget... pictures are on the way....so far Ive spent 1300 on the entire setup... but I still need a bov( If I cant find the stockone, which is brand fukin new) piping, and exhaust ( I have one that is for sale for a n/a, which I could use but dont feel like it..).... I think that at the end, the entire swap with prolly cost me about 1700.. which is not bad at all considering what the costs are to add a turbo to an n/a... its 1700 and thats because I was a lil uncarefull removing my old engine and had to buy many new parts... O wait I forgot the fuel lines too, since im removing the fukin solenoid rack...so far I have the motor, and a front mount for 1300...
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