Bendix Gear

[Rob Frankham]

Only half of the ring gear will show wear as the engine usulllay stops in two different spots, about half way up the compresion stroke on one or the other cylinders.

On a point of order...

doesn't make much difference but, in fact, there will normally only be one area of extra wear on a Boxer ring gear. The crank tends to stop at roughly the same place no matter which cylinder is on the compression stroke. This is true of any 2 cylinder engine where the cylinders fire at equal intervals. A 4 cylinder engine will have two areas, a 6 cylinder engine 3 areas and so on.

Rob

[Major Softie]

Only half of the ring gear will show wear as the engine usulllay stops in two different spots, about half way up the compresion stroke on one or the other cylinders.

On a point of order...

doesn't make much difference but, in fact, there will normally only be one area of extra wear on a Boxer ring gear. The crank tends to stop at roughly the same place no matter which cylinder is on the compression stroke. This is true of any 2 cylinder engine where the cylinders fire at equal intervals. A 4 cylinder engine will have two areas, a 6 cylinder engine 3 areas and so on.

Rob

Well, he was still mostly right: the engine usually stops in one spot: "about half way up the compression stroke on one or the other cylinders."

Or is that only 1/2 right?

[Garnet]

Only half of the ring gear will show wear as the engine usulllay stops in two different spots, about half way up the compresion stroke on one or the other cylinders.

On a point of order...

doesn't make much difference but, in fact, there will normally only be one area of extra wear on a Boxer ring gear. The crank tends to stop at roughly the same place no matter which cylinder is on the compression stroke. This is true of any 2 cylinder engine where the cylinders fire at equal intervals. A 4 cylinder engine will have two areas, a 6 cylinder engine 3 areas and so on.

Rob

Well, he was still mostly right: the engine usually stops in one spot: "about half way up the compression stroke on one or the other cylinders."

Or is that only 1/2 right?

Hey, 1/2 right is close to a 50% improvment for me.

[Bob Bennett]

Good news, she's startin great, any time, any where. Thanks everyone for your help.

Just for the record, wirewrkr was spot on, I didn't realise that there were bushes in the bendix shaft,
if I had it would have been a lot cheeper than buying a whole bendix, in my defence though there is no
sign of any bush or part thereof in the original bendix, the PO was obviously a %$#$#@, you can see all
in the photo.


Thanks again to everyone for your help.

[Major Softie]

the PO was obviously a %$#$#@...

Hasn't anyone ever told you? The PO is ALWAYS a %$#$#@.

Well, even if only because of the missing bushing, it was worn enough that replacing the whole thing was wise.

[Sibbo]

So ,it would have been tilting and jamming under load ? Why only when hot ?

[Bob Bennett]

G'day Sibbo, maybe the tube expanded just that bit extra causing more slop, or the grease on the
spline was hard enough when cold to keep it straight enough when cold, I dunno!
The problem started before Guyra and it started OK up there in the morning didn't it?

[Bob Bennett]

Major, Maybe it wouldn't be so worn, and buggered the ring gear, if he had left some bushes in it.

[Sibbo]

G'day Sibbo, maybe the tube expanded just that bit extra causing more slop, or the grease on the
spline was hard enough when cold to keep it straight enough when cold, I dunno!
The problem started before Guyra and it started OK up there in the morning didn't it?

Yep perfectly , but it was cool .The hard grease makes sense ,but there can't be much tilt in it .How did it feel when you cleaned it up ?... the old one .

[Major Softie]

Well, even if only because of the missing bushing, it was worn enough that replacing the whole thing was wise.

Major, Maybe it wouldn't be so worn, and buggered the ring gear, if he had left some bushes in it.

Uhm, that was my point. I mean, I put the word "because" in italics and everything.