Argh! Briggs Recoil

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craig2

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• Jun 3, 2019 / Argh! Briggs Recoil

• #1

I have a Briggs 28B702 on an Exmark Metro 32". I had a ton of trouble with the original ball bearing recoil clutch mechanism. No matter what parts I replaced and type of oil I used, the clutch would jam up and mess up the recoil spring every couple of months of weekly mowing. After replacing every part and still having the same issue, I gave up and replaced the entire starter with a new one with retracting pawls. And now those plastic pawls are busted after a two month's worth of mowing.

Are there any Briggs recoil mechanisms that actually work for an engine this size? I can't keep fixing this!

Thanks!

 

Fish

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• Jun 3, 2019 / Argh! Briggs Recoil

• #2

So you had to cut off the shaft for the pawl starter, I am assuming?

 

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craig2

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• Jun 3, 2019 / Argh! Briggs Recoil

• #3

Yes I did. That part threads into the crankshaft, so I didn't mind cutting it knowing I could replace it.

 

Fish

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• Jun 3, 2019 / Argh! Briggs Recoil

• #4

craig2 said:

Yes I did. That part threads into the crankshaft, so I didn't mind cutting it knowing I could replace it.

Click to expand...

So you still have it?

Go back to the old style starter.

 

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craig2

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• Jun 3, 2019 / Argh! Briggs Recoil

• #5

I would have to order a new crankshaft extension to go back to the old style.

Thoughts on how to keep the clutch properly lubricated so that it doesn't jam up and eject the starter rope and mess up the spring? As noted in my first post, I've replaced every part and tried different oils, but every 2 months it was back to taking the whole thing apart again.

 

Fish

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• Jun 3, 2019 / Argh! Briggs Recoil

• #6

craig2 said:

I would have to order a new crankshaft extension to go back to the old style.

Thoughts on how to keep the clutch properly lubricated so that it doesn't jam up and eject the starter rope and mess up the spring? As noted in my first post, I've replaced every part and tried different oils, but every 2 months it was back to taking the whole thing apart again.

Click to expand...

No oil is suppossed to be used. It just collects dirt.

So you removed the old crankshaft extension and threw it away?

 

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craig2

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• Jun 3, 2019 / Argh! Briggs Recoil

• #7

Old crankshaft extension had to be cut to make way for the new pawl cup.

I know there should be no oil where the ball bearings go, that just collects dirt and prevents clutch engagement. But shouldn't there be a small amount of oil on the crankshaft extension where it goes inside of the square part below? The crankshaft extension spins at 3600 rpm inside of the square part once the engine is started.

 

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Fish

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• Jun 3, 2019 / Argh! Briggs Recoil

• #8

How can you install the crankshaft extension back on?

 

Fish

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• Jun 3, 2019 / Argh! Briggs Recoil

• #9

Older shortblocks came with a threaded crankshaft extension, so it could be used on both version engine applications, but not meant to be able to use it on cut crankshafts.

 

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craig2

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• Jun 3, 2019 / Argh! Briggs Recoil

• #10

Right, I have a threaded crankcase extension which I cut. It's no problem to buy another one for $20.