My New High Torque Starter grinds teeth on flywheel...........

[P.R]

I purchased a new WOSP high torque starter from England ( I live in Sweden ) and I asked before the purchase if it was a good product, I have read on various forums that this type of starters are known to eat teeth on the flywheel and I was told from the dealer that there would be no problem with the WOSP starter.

It must be added that my engine has high compression and high ignition at idle making it difficult to start even though I have new battery and reconditioned Bosch original starter.

I use RSR flywhell from Patrick motorsport and Sachs lightweight pressurplate.

The new high torque starter has a drivegear that is only 8 mm wide compared to the original Bosch which has 12mm and it looks like the drivegear is passing the gear on the flywheel ( see picture ) so the interface seems to have been only about 2mm.

Now the engine and gearbox has to be taken taken out of the car to change the ring-gear on the flywheel which I am not so happy about when I suffer from an injury and has a disk hernia.


Are there any others who had problems with their high torque starters?

I still need one, what about the Pelican starter is it any good?

I know I've read about others who have similar problems but can not find those pages now, if you know any please let me know.




image is little out of focus, hope you can see anyway.

[Wil Ferch]

See post # 6 ---> High torque starter install

...you may want to see how far the pinion gear moves axially...comparing this and the old unit. That may be more important than simply how wide the gear face is.


See here also---> Starter Buzzing/Grinding

[tobluforu]

Yes, I had an issue-Installed my HT starter and sounded great for about two minutes, then it started sounding like the damn motor was about to let loose. Took it off and that was that.. The one I bought was off of ebay, I then bought the one from pelican and all has been well since.

[spuggy]

Originally Posted by P.R

Are there any others who had problems with their high torque starters?

I still need one, what about the Pelican starter is it any good?

Wow, sorry to hear of your problem there.

I fitted this unit from the UK 4 years/20,000 miles ago, and consider it a very high-quality product which has always performed flawlessly.



It's also all-new manufacture (I understand some are based on re-manufactured or reconditioned parts).

I bought it from Cambridge Motor Sports in the UK:

Porsche Starter Motors - Edge Starter Motors - Cambridge Motorsport Parts

[Bearded Viking]

Check this link too.

Post 22 - Regarding a shim that was included with the starter (Well at least from the one that was on eBay at the time).

Mini starters ??

[P.R]

Originally Posted by Wil Ferch

See post # 6 ---> High torque starter install

...you may want to see how far the pinion gear moves axially...comparing this and the old unit. That may be more important than simply how wide the gear face is.


See here also---> Starter Buzzing/Grinding

Thanks.

Yes I should have measured up the starter but I assumed that I could trust the seller and the product was new. I still think that its bad developed with a gear that is not wide enough.

When you buy a new produkt made for your Porsche I think that you should be able to thrust that it works, the solenoid throws the gear to far so the gear get past the gear on the flywheel and grinds the gear on the backside.

[P.R]

Originally Posted by Bearded Viking

Check this link too.

Post 22 - Regarding a shim that was included with the starter (Well at least from the one that was on eBay at the time).

Mini starters ??

Thanks.

There was no shim included with my starter, I would have neded alot of them.

There is a starter on that link from Hi Performance USA, the gear on that one looks better, the gear seems to be wider and there is also a flange behind the drivegear that prevents the drivegear passing the gear on the flywheel, a better design from my point of view.

This is the one

[P.R]

Originally Posted by spuggy

Wow, sorry to hear of your problem there.

I fitted this unit from the UK 4 years/20,000 miles ago, and consider it a very high-quality product which has always performed flawlessly.



It's also all-new manufacture (I understand some are based on re-manufactured or reconditioned parts).

I bought it from Cambridge Motor Sports in the UK:

Porsche Starter Motors - Edge Starter Motors - Cambridge Motorsport Parts

Sorry to say that it looks like a similar gear-design as the WOSP starter, thin gear and no flange behind the drive gear that prevent the drive gear passing the gear on the flywheel.

It may work on an original engine but is not a good design on a race engine with high compression and a lot of advanced ignition.



The 993 tiptronic starter looks nice, it's good to have support fore the axle.

I have read about an 912 with 996 Cup-engine with the 993 Tiptronic-starter
who seems to works fine.

[Porboynz]

I think the solenoid should only throw the starter dog gear forward enough to be centered with the flywheel teeth, depending on a flange to stop it overshooting is bad engineering. Maybe there is adjustment on how far the gear is activated? Also be sure to count the teeth on the starter and make sure its the same as a stock gear, that will cause issues otherwise.