Gearbox overhaul
Re: Gearbox overhaul
Have the detent plungers flown across the workshop yetHurtzberg wrote:Oh dear, I started taking it apart.
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Re: Gearbox overhaul
You warned me about those which is why mine is still wrapped and untouched!!
"If you're driving on the edge ... you're leaving too much room!"
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Cars: "Project 757" '59 A35 2-door bought in 1971 & Subaru BRZ SE LUX Auto plus "family fleet": Alfa MiTo, Peugeot 206, (Ex '98 Alfa Romeo 156 2.0 TS)
Club WebEditor.
Cars: "Project 757" '59 A35 2-door bought in 1971 & Subaru BRZ SE LUX Auto plus "family fleet": Alfa MiTo, Peugeot 206, (Ex '98 Alfa Romeo 156 2.0 TS)
Re: Gearbox overhaul
Probably should have turned the music off so I had some chance of hearing if that happened.
Andrew
1957 A35
1957 A35
Re: Gearbox overhaul
You wont hear plunger or spring fly through the air, never to be found again...
Re: Gearbox overhaul
It all looks very clean in there. The laygear had no play at all - couldn't get even a .0025 feeler gauge in. Layshaft looked very good too. Wouldn't be surprised if this was rebuilt fairly recently.
Having said that, there was a fair bit of movement from the 1st and 3rd shafts but I don't know what is considered excessive. Is that cured with just new bearings or do these get shimmed too ?
Having said that, there was a fair bit of movement from the 1st and 3rd shafts but I don't know what is considered excessive. Is that cured with just new bearings or do these get shimmed too ?
Andrew
1957 A35
1957 A35
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Re: Gearbox overhaul
You're probably worrying about nothing as the first and third motion shafts are supported at both ends once the gearbox is part of the drive train...
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A30/A35 Club Member A191 (since 1972)
Father of the club's only love child
A30/A35 Club Member A191 (since 1972)
Father of the club's only love child
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Re: Gearbox overhaul
That is first gear of course and as long as you are fairly gentle with take offs it will last a long while, if a bit noisy - but aren,t they all ?
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Re: Gearbox overhaul
"Fairly gentle"Dave Clark wrote:That is first gear of course and as long as you are fairly gentle with take offs it will last a long while, if a bit noisy - but aren,t they all ?
Next time I will bring cake Andrew
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Re: Gearbox overhaul
That tooth damage is much worse than just pitting - I'd be inclined to have a spare gearbox ready to fit before the inevitable happens...Hurtzberg wrote:A fresh pair of eyes saw this pitting on the laygear
Alternatively don't select first or reverse gears...
Re: Gearbox overhaul
It looks like it might have some foreign body jammed between the teeth perhaps? The edges of the teeth look surprisingly good, so it's shame it has that damage.
Re: Gearbox overhaul
Don't think so...beko wrote:It looks like it might have some foreign body jammed between the teeth perhaps?
Looking at the second gear tooth from RHS of photo, there is damage starting on the contact face. This is caused by wear breaking through the tooth's hardened external surface. After this outer surface becomes damaged, the tooth will wear very rapidly.
That's happened already to the first tooth from RHS. It's simply further along the wear path. At that advanced state of damage, I would expect shear failure imminently.
Usually trapping any hard debris results in immediate catastrophic tooth failure not localised damage