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View Full Version : TR2/3/3A TR3 starters short v.s. long



mgbmedic
04-12-2012, 11:41 AM
I have a TR3B engine and a early tranny with the bull-nosed starter. I seem to rmember that they will mate up if the flywheel ring gear is correct. One has 91 teeth, the other has 90 teeth. Which is which?

Moseso
04-12-2012, 12:24 PM
I don't know which is which by tooth count, but the earlier (bullnose) ring gear is pressed onto the flywheel -- no bolts through it -- and the later (long-nose) ring gear is bolted onto the flywheel.

TR3driver
04-12-2012, 12:36 PM
The larger ring gear goes with the early starter (which has a smaller pinion).

Another option is to buy a gear-drive starter to match your existing flywheel. The late gear-drive starter will fit into the early transmission housing.