Engine and Transmission Tech

tips, technology, tools and techniques related to vehicle driveline components

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donkelly23
Don Kelly
Charleston, SC
(117 posts)

Registered:
07/21/2011 05:13PM

Main British Car:
1980 TR7 V8 Z28 FI ECM 4.0

Rover Crank Triggger
Posted by: donkelly23
Date: December 29, 2019 09:50AM

Has anyone used the stock crank trigger for the MS3.
Does the flywheel have to be off the rover or can I adapt an different brand?
Have a 4.0 going in a Wedge body and have a lightened flywheel from the Wedge Shop


mstemp
Mike Stemp
Calgary, Canada
(204 posts)

Registered:
11/25/2009 07:18AM

Main British Car:
1980 MGB Rover 4.6L

Re: Rover Crank Triggger
Posted by: mstemp
Date: December 29, 2019 10:42AM

Don,

Lots of companies in U.K. make a setup to fit the front of the engine for MS.seem to recall the stock crank sensor is not compatible with MS, hence why the others are made.


donkelly23
Don Kelly
Charleston, SC
(117 posts)

Registered:
07/21/2011 05:13PM

Main British Car:
1980 TR7 V8 Z28 FI ECM 4.0

Re: Rover Crank Triggger
Posted by: donkelly23
Date: December 29, 2019 10:53AM

Actually I have the trigger wheel, sensor already for the front
I thought instead of fiddling around with trying to make a braket it might be easier


RDMG
Dave R
Northern Virginia
(129 posts)

Registered:
04/07/2016 08:29PM

Main British Car:
1979 MGB 4.6L Rover V8

Re: Rover Crank Triggger
Posted by: RDMG
Date: February 11, 2020 10:27AM

Definitely won’t be easier. The Bosch-era 4.0L had the trigger wheel drilled into the flywheel or flex plate itself, with holes at about 1/4”-3/8” depth. Might be impossible to replicate on an already lightened flywheel. The GEMS era engines had a separate trigger wheel with raised tines that bolted to the flywheel. I bet that part would be your best path to success. I do not know if the sensors were different, but if they are, I suspect the welded-in bracket for the sensor will make one style of block not compatible with the other style sensor (without welding, anyway). Neither trigger pattern is compatible with EDIS controllers, if that matters.


donkelly23
Don Kelly
Charleston, SC
(117 posts)

Registered:
07/21/2011 05:13PM

Main British Car:
1980 TR7 V8 Z28 FI ECM 4.0

Re: Rover Crank Triggger
Posted by: donkelly23
Date: February 11, 2020 02:48PM

Thanks Dave
Went back to the pulley version


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