MX-3.com

Hi there,

Had a quick question regarding motor test. I am going to get a ZE motor this weekend and was asking the shop what sort of tests they do on the engine. And they said they don't do compression test as it's not realiable on a cold motor. Instead they would be doing a leak down test to make sure the motor is good.

Just wanted to get your opinion on this if it's a load of bull or if it's legit. Thanks in advance for your assistance.

Uday

A leak down test is generally more reliable than a normal compression test.. their reasoning about not doing a compression test on a cold engine could be valid. Especially on engines with aluminum heads. Heat causes expansion and aluminum expands quite a bit.. so when the engine is cold, everything would be at its tightest point and a simple compression test might not reveal problems that a leak down test might.

Tunes67

that is the same explanation they gave me so it seems they are on the up and up...thanx again

I'd ask them for a copy of the leak down test results. That way if you get the motor, install it, and it is crap you can have another shop do a leak down test and make sure it is not a compression issue. If it fails the test then you have recourse against the seller of the motor.

Oh ya there was no doubt I was going to get everything in writting. Also I told them once it's in and everything I would bring it back in for the compression test regardless and they have no problem with that.

Now all I have to do is get the KL3x ECU and a MAF

Im really sorry about this but .... I cant post in buy/sell.

PATDIESEL, why havent you repponded to my email?

You responded just fine, until you received my $158, 10 days ago.
That has me troubled.

Mixup? Fine, ship my stuff. Respond to my email chris.dunster@gmail.com.

Selecta wrote: Now all I have to do is get ..... a MAF

Why? Don't you own an MX3?

I do have a MX3..however I am getting the curved neck intake manifold and with the KL3x ECU would need to change my JE-50 VAF as it won't work with the ECU/Intake combo. At least that is what I have been lead to believe and read thus far.

But if I am mistaken please do let me know.

Selecta wrote:I do have a MX3..however I am getting the curved neck intake manifold and with the KL3x ECU would need to change my JE-50 VAF as it won't work with the ECU/Intake combo. At least that is what I have been lead to believe and read thus far.

But if I am mistaken please do let me know.

no just use the je50 vaf. The kl31 or 36 ecu use a je50. The ecu is actually for a straight neck but works fine using the curved neck just the vris points would be off.

really? and what would having the VRIS off really do? Also what does VRIS mean? hehehehehe