Brand new starter seems to catch on flywheel

Hi Have fitted a new starter on my Westwood gazelle MII when I try to start it wont turn the starter over as it gets caught on the flywheel. Are there different size teeth on some starters how do I know if i have a match please?

Its the teeth. Briggs has two different starter gears. Cant tell you what is what though.

This may be a dumb question but it's worth asking- Do you have the old gear to compare with, or even attempt to swap on?

One gear metal and is the other plastic?

The gear looks metal I have attached a photo.





I dont have the original any more the engine details are

The tooth pitch look alright from here. Frankly, you can see better that I can, 'cause you're staring at it, while I get a pic. Now- while I'm still unsure on the metal/plastic think mentioned above, I DO know that there were a few different starter body lengths, and a couple of different Bendix drive designs. I see that you currently have the "snap-ring" style. Perhaps you originally had the "roll-pin" style.

If you REALLY play with it, can you see what's hanging? Could you (maybe) shim between the starter and the block to gain a wee bit of clearance?

I have a metal gear Briggs starter, but it is the wrong number of teeth, doesn't fit any of my engines.

Strech are you saying mine has the wrong number of teath. Do or does anyone have the number teath of flyweel starters cogs or is this irrelevant

Doc what is this "Perhaps you originally had the "roll-pin"

I am referring to two distinct styles of the Bendix drive mechanism on Briggs starters. I do NOT know for sure if they are interchangeable. If you look at your starter's pinion gear, it is held on with a snap ring or circlip. There's another type that is retained with a roll pin, and it looks different. While the actual retaining method makes no difference from a functional perspective, I cannot help but wonder if the shaft length or diameter might be different, or the effective throw, or something that may cause your issue.

Is there a fault finding method for starters as it looked like it threw the gear up to flywheel but jammed not starting it.

Thankyou

Does anyone have any ideas matching starters gears to fly wheels please can still not get this working?

Bought a Briggs part had both gear and starter gear in it fitted a treat . Was amazed it came all the way from Australia for £3.95 postage. Back on works fabulous . Am so used to having it apart have forund another reason ;-) PTO

Here what I fitted