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The mkiv Supra Owners Club

How to get to the crank position sprocket star?


Tommyd16

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Is there a how to??

Still new to this engine. I reckon it has slipped. Car won't start has no spark. Been doing a lot of googling the last couple of days and just found something that has confirmed one of my suspicions. A little rattle noise I noticed the other day that I belive to be the washer that sits crank timing sprocket??

What's the best way to get to it what needs to come off so I can get to it. Take it off and get it welded?

Cheers

Tommy

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If it is loose the ECU will almost certainly flag a fault code as it will still be seeing sensible cam position sensor readings. I see it has an alarm. I would, if it were my job to sort this, suspect add ons after the car was built, as a first step. Personally I won't have a car myself with an aftermarket alarm, they give a load of hassle. See where it's been spliced into the original loom on the ignition side and bypass the thing. I honestly think, unless you put zero value on your own time, it would be much more cost effective to have a pro look at it, and diagnose things in a more scientific manner.

Edited by Chris Wilson (see edit history)
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Would the immobilser prevent it sparking though? I thought the immobilser prevents the starter cranking?

Rang clifford anyway and the person didn't have a clue they just said we could try servicing it for £150

I also have it booked into a garage for Monday

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If you take the spark plug cover off and loosen the plastic upper cam cover could you not (carefully and from the right cam side so avoiding the tensioner) use something to reach down inside the cambelt run to the timing star to check for looseness?

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Ok the car has started!

Disconnected the battery for an hour or so (had already tried to reset the ecu the other day by removing the fuse)

Rolled the car back a couple of feet. Also disconnected and reconnected the plugs under the auto gear selector just in case maybe it wasn't getting a good signal to say its in park.

Reconnected the batt and it fired up :s

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Ok the car has started!

Disconnected the battery for an hour or so (had already tried to reset the ecu the other day by removing the fuse)

Rolled the car back a couple of feet. Also disconnected and reconnected the plugs under the auto gear selector just in case maybe it wasn't getting a good signal to say its in park.

Reconnected the batt and it fired up :s

 

 

in that case I might consider the immobilser could be playing silly buggers.

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