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Yeah, sounds like it's new head time. Jeff

The JZ cam and crank position sensors fail as well, and the cam ones leak too, so I don't think the JZ setup is that much better, though I do think it is more accurate. Jeff

As for the water pump, that port on the bottom is simply a weep port, Toyota had a drainage hose coming off of it going down to avoid it hitting anything (alternator), but it is not really required. No need to plug it. Jeff

When you forward the email, send it to jeff.toyota@gmail.com if you can. Hopefully you get it soon, I need to know tomorrow, and I want to confirm mileage, etc. Thanks! Jeff

PM sent. Jeff

Anyone able to check a VIN for me? Just curious. Jeff

He's swapping the 7M-GTE into the 89 N/A, but has intercooler piping from an 88. Which is fine by the way, 88 had the same I/C piping as 89+, only 87 was different. Jeff

Toyota uses twin-ground electrode spark plugs in a few different engines, I'm not 100% sure why, but they do seem to run better with them installed. Jeff

You will probably need a 2JZ-GTE rear housing (16120-88400) to use this on a 1JZ-GTE with a factory hydrofan setup. Jeff

It is not engine-related, therefore cannot be classified as 7M-GTE technical. Jeff

What does this have to do with the 7M-GE? Thread moved. Jeff

Thread Moved. Jeff

For JDM MA70's (Pre-89): Automatic: 3.91:1 (LSD Optional) Manual: 3.73:1 (LSD Standard) No, LSD was standard on turbo models and Canadian N/A models. It was optional on the N/A in the USA for 86.5 all the way to 92. The factory MA70 LSD is a clutch type LSD :aigo: But you are correct the...

Externally they're all identical, you cannot identify it. Jeff

Aristo 92-97 = 80A Alternator Aristo 98-04 = 100A Alternator IS300 01-05 = 100A Alternator Supra Turbo & N/A 93-98 Manual = 90A Alternator Supra Turbo 93-98 Automatic = 100A Alternator Supra N/A 93-98.5 Automatic = 100A Alternator Supra N/A 98.6-on = 80A Alternator 2JZ-GTE and 2JZ-GE didn't...

No I'm not saying you need to, just that I found I needed to. I wouldn't unless you're installing new rings. Jeff

I purchased a JDM 4A-GZE from an AE92, like most Japanese engines, it was supposedly low mileage, though you don't know how long it's been sitting, or whatever. I pulled it apart and it actually looked pretty darn good. No sludge issues, looked pretty clean, however after sitting for years the...

Not quite. Should have left your post to just the first bit, maybe then he could have searched and found accurate information, lol. Jeff

Let me answer that question for you. USA/Canada Destination: 86.5 - 92 N/A = 4.30:1 (USA: LSD Optional, Canada: LSD Standard) (Open Axle Code: G284 for Pre-89, G282 for 89+; LSD Axle Code: G285) 87-88 Turbo = 3.91:1 LSD Standard (Axle Code G315) 89-92 Turbo = 3.73:1 LSD Standard (Axle Code...

On the Supra, no. Jeff