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Trd K Engine Manual


OniBerserker

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is this enough info for a cam to be reground to specs?

 

trdCamSpec.jpg

 

no, it isn't. all it tells you is at what time certain events occur, or what the max value of those events is.

ie. valves leave the seat at x degrees, valves return to seat at y degrees, and at z degrees max lift q is achieved, etc

but what about the shape of the profile? the ramp rates, etc. you need a scan of a pair of physical camshafts to duplicate them.

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4 gears are used to drive the cam shaft on a TRD motor. 2 idlers 1 one cam 1 on crank. Was the weak point they actually had issues with them breaking.

 

Also TRD used 2 types of oil coolers a belt driven pump or one that bolted to the front of the cam shaft and came out the timing chain cover and was a pump. Also the oil cooler can be complimented by the TRD dry sump was one for sale in NZ just a few weeks back for a pretty penny :yes:

 

Also 4K TRD motor hand book like this 3K one doesn't really exist. But get a copy of the TRD parts catalog and it list 3K TRd and 4K TRD parts. Motor again is same the TRD 4K parts stage 1,2,3. never really existed only done for 4K. My TRD parts catalog only list 3K but a lot fits 4k,5k, etc.

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No

This is what a gear drive looks like

GearDrive.jpg

The cam still runs in the same direction.

When its in good condition the drive to the cam is positive no slack etc like what you get with a belt/chain. But the wear rate can be a little high, unless Teflon coated gears are used but then you miss out on the whine from the gears....

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  • 2 years later...

Or you could buy a copy of the 4AGE Engine Diagnostics manual that has my handwriting on the pin-outs page.

 

That's also available for a price on US ebay.....

 

The stupid prick even had my forum name in the title, as that was what it was called when he lifted it of the site that hosted it for free.

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