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Matthew E. Herd
Jedi Warrior
Offline
After having fried my brother's '80 MGB starter due to ignition switch not returning the key to the on position and me not realizing what was wrong, I decided to attempt an Isuzu Trooper swap. Has anyone else attempted this? I am almost finished, but have encountered many obstacles in the way. As a report, I have encountered the following challenges.
The actual bolt pattern and the starter pinion are compatible. However, the throw of the starter is approximately 3/16" short of full engagement, the circle on the starter designed to assist in alignment is too large, and in order to avoid interference with the body, it must be rotated.
The starter is for the 1987-1989 (or perhaps longer) Isuzu Trooper 2.6L 4 Cylinder. Made by Nippondensu, I got it for 65 dollars with a 25 dollar core (they took the Lucas one). I found references for its use on a GT6 on triumphspitfire.com and teglerizer.com. I suspect its use in any triumph engines would be far easier than that of the MGB.
I decided to machine the face of the starter by 3/32" to achieve almost complete engagement and reduce the diameter of the circle to match that of the engine backplate. However, the issue of interference was previously unconsidered. I discovered that the starters available via ebay, etc, somehow maintain the housing for the gears yet have a separate adapter plate which bolts to the starter and can be machined so that the angle is adjusted for clearance. Because I do not have this luxury, I decided to make a set of brackets which bolt through the original holes and through the starter holes to positively locate the starter. I have yet to finish fabrication, but I can provide more info and will update whether or not this project is successful, most likely tomorrow.
The actual bolt pattern and the starter pinion are compatible. However, the throw of the starter is approximately 3/16" short of full engagement, the circle on the starter designed to assist in alignment is too large, and in order to avoid interference with the body, it must be rotated.
The starter is for the 1987-1989 (or perhaps longer) Isuzu Trooper 2.6L 4 Cylinder. Made by Nippondensu, I got it for 65 dollars with a 25 dollar core (they took the Lucas one). I found references for its use on a GT6 on triumphspitfire.com and teglerizer.com. I suspect its use in any triumph engines would be far easier than that of the MGB.
I decided to machine the face of the starter by 3/32" to achieve almost complete engagement and reduce the diameter of the circle to match that of the engine backplate. However, the issue of interference was previously unconsidered. I discovered that the starters available via ebay, etc, somehow maintain the housing for the gears yet have a separate adapter plate which bolts to the starter and can be machined so that the angle is adjusted for clearance. Because I do not have this luxury, I decided to make a set of brackets which bolt through the original holes and through the starter holes to positively locate the starter. I have yet to finish fabrication, but I can provide more info and will update whether or not this project is successful, most likely tomorrow.