550 F2 started!

[McCabe-Thiele (Ted)]

Great links Phil.

[Oddjob]

This fecker.

Good find Phil, I looked but it was using the correct terminology that I suppose counts. First pic though and he leaves the oil pump oring just hanging off the case, along with one of the dowels and it's oring, why?

I knew I'd seen it.

[Oddjob]

Roo, on the off chance you might need them I'll throw in a complete primary drive hub as well as the starter motor end caps.

I'll check the hub first to see if the springs and rollers look ok as well as the surface where they engage.

[Bryanj]

Not sure if i read it right but the big gear you see through the hole the starter fits in is supposed to spin free one way and lock up to turn the engine the other, thats how the sprag clutch works

[Sesman]

That’s as I understand it. The engine speed overcomes the stater rotation speed overtaking and disengaging the starter drive. A nasty noise will arise if the drive mechanism is slow to release, but release it must…eventually. I’m crossing my fingers for Roo hoping it’s just a bit of float in the starter shaft causing a suboptimal engagement under load. I do fear however that’s it’s the drive mech. It’s all guess work on my behalf mind.

[Laverdaroo]

Reet, I’m bits, liking at the starter motor first…..


Had it apart again and notice there’s a good 2.5mm of end float laterally on the brass bearing so think that’s shot but I’ll bob
 it back together and see if it replicates after another ‘nanny’ and a re oil.

Now, never noticed this before (probably due to the years of cack which is cosmically attached via nuclear fusion through no cleaning over 40 years) but behind the bushing in the starter cap there’s a felt washer……….who knew?

Re-doused with oil and I’ve put the old brushes and original springs, I’d taken the stings off a knackered unit as they were in better nick and bought new brushes,  so just in case the profile is causing the vibration I e put the original ones back in to test. They’ve loads of meat on them but are worn in so maybe make it spin with a bit less friction???

Interested to see anyhow


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[Laverdaroo]

This is the order it came out when originally split as I have photos, but just thought, is this the right order of shims?

Potential issue?


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[Oddjob]

Thought there was some shims on both ends not just one.

[Laverdaroo]

That’s all that was in there bud, crap photo this was on the other end….


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[Laverdaroo]

Times 3 stuck to end of shaft!!!


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[McCabe-Thiele (Ted)]

So Roo might it be the starter motor shaft float?

[Laverdaroo]

’Cest possible’ (said with a galic shrug and in an ‘Allo Allo’ accent).


From posted gubbins and trawling the t’interweave after the hosp this arvo that’s what it’s pointing at.

The Parp on shut down is another story Ted. More research required I feel before starter clutches are removed via keyhole sergery but it’s looking that way or split the lit. Boooo!‍

It is what it is, I’m totally annoyed but got bigger things to sort at the min, full tooth removal with the worst toothache I’ve ever had plus solicitors being dicks on a property I’ve been trying to get on for the last 12months. Think we’re there with the site today but not counting chickens, or indeed carp, yet!

Anyway progress tonight so that’s good and one thing to potentially sort as found to be an issue but not there yet I feel!

 


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[Laverdaroo]

Forgot to mention as well, cheers Ken,  for the bits that would be smashing mate


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[Laverdaroo]

With said bits potentially on their way soon from Uncle Ken, I’ve bobbed it all together again and cannot replicate the park at all, I’ve tried it and counted 40 goes at various spinning times up to 30 seconds and can’t get the Parp to return. Going to put it back in and try it against the engine inertia to see if it parp’s spinning it up with the screwdriver back inas the top cam sprocket. If not I’ll tentatively start the top end reassembly.

It would only do it after the engine had run on shutting down indicating that the motor was spinning as the motor was, not good?! Either way that means cam back in, sprocket and the lid and try a brief fire. I’ll report back.


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[Laverdaroo]

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