Or another money pit…
Project Money Pit !
- Thread starter Stirlingmoz
- Start date
The £100 eBay ‘spares or repair’ gearbox has arrived.
It came packed in small bits of polystyrene which has got everywhere and stuck firmly to the caked on grime.
And it’s seized - definitely fits the description of ‘spares or repair’ !
Still - what did I expect for £100 ?
Time for a thorough external clean and then see if I can open it up.
It came packed in small bits of polystyrene which has got everywhere and stuck firmly to the caked on grime.
And it’s seized - definitely fits the description of ‘spares or repair’ !
Still - what did I expect for £100 ?
Time for a thorough external clean and then see if I can open it up.
Looks like there is a good casing there even if the internals are 100% shagged
Hopefully it will clean up nicely and once apart its just something simple to unseize.
Enjoying seeing the slow steady progress, keep it coming.
When I finally retire and no longer have to care for my elderly mother I've got to get myself another project bike for my sanity.
Enjoying seeing the slow steady progress, keep it coming.
When I finally retire and no longer have to care for my elderly mother I've got to get myself another project bike for my sanity.
Pottering in the garage is my sanity preserver for sure. Time stands still when I’m in there.
Enjoy the pottering almost as much as riding these days.
I had a day off today and spent some time on Money Pit.
I fitted a new big nose bearing on the crankshaft so I could in turn, fit the timing chain cover.
The timing chain cover has been powder coated and it took a while to clean and chase out all the threads. Definitely worthwhile as though not a lot - there was definitely some blasting media still in there.
Anyway, timing cover fitted,
Rotor fitted
Diode board fitted
Airbox reassembled and fitted (got a couple of small parts missing though
)
And the starter and front engine covers are on.
I need a good stator and bean can unit and I can call the bottom end pretty much done.
I’m considering putting the engine in the frame to free up some bench space
Forgot to take any photos but will sort this tomorrow
I fitted a new big nose bearing on the crankshaft so I could in turn, fit the timing chain cover.
The timing chain cover has been powder coated and it took a while to clean and chase out all the threads. Definitely worthwhile as though not a lot - there was definitely some blasting media still in there.
Anyway, timing cover fitted,
Rotor fitted
Diode board fitted
Airbox reassembled and fitted (got a couple of small parts missing though
)And the starter and front engine covers are on.
I need a good stator and bean can unit and I can call the bottom end pretty much done.
I’m considering putting the engine in the frame to free up some bench space
Forgot to take any photos but will sort this tomorrow
This is where the boat anchor starts to look a bit like it might actually work.However, it’s no longer a £100 motor with all the new and used parts / fasteners and powder coating.
It’s now a £400 motor as it sits
I do have some confidence in it now though.
I’ve got some R65 barrels and pistons that need a clean and refresh but that will have to wait until next payday to buy new pushrod tubes (and associated insertion tool) and some rings.
If it stops raining here today, I will make a start on cleaning the gearbox. You can’t even touch it at the moment without getting grease and bits of polystyrene on your clothes.
In other news I won a pair of poorly listed R65 Bings on eBay for £25 ! They look reasonable in the photos and come with rubbers, inlet elbows and fasteners.
You never know with eBay but my fingers are crossed that I can use these
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Made a start on cleaning the gearbox this morning
Before..
And after..
Just a first pass.
Discovered the gearbox has been painted silver.
Fortunately the paint seems to be coming off quite easily.
The polystyrene put up a bit of a fight but I think I’ve got it all now.
I think this may have a broken spring in the gear selector or the mechanism is partially seized. Doesn’t feel right at all.
The output shaft does turn now about a third of a turn in each direction and feels stiff.
The cap heads on the rear cover are really tight so I will need to be careful on removal.
Finally I did a little electrical work and the rolling chassis now has some working warning lights.
No mean achievement for me - being colour blind - and mixing and matching 2 wiring diagrams.
Before..
And after..
Just a first pass.
Discovered the gearbox has been painted silver.
Fortunately the paint seems to be coming off quite easily.
The polystyrene put up a bit of a fight but I think I’ve got it all now.
I think this may have a broken spring in the gear selector or the mechanism is partially seized. Doesn’t feel right at all.
The output shaft does turn now about a third of a turn in each direction and feels stiff.
The cap heads on the rear cover are really tight so I will need to be careful on removal.
Finally I did a little electrical work and the rolling chassis now has some working warning lights.
No mean achievement for me - being colour blind - and mixing and matching 2 wiring diagrams.
You’re doing a great job on that
The £25 eBay carbs turned up today.
Got to say for the money, I’m pretty chuffed.
But this is eBay of course and the seller forgot to include the rubbers and elbows.
However he has assured that these will soon follow.
Hopefully I will have time to peek inside these at the weekend, just to see what we’re working with.
Got to say for the money, I’m pretty chuffed.
But this is eBay of course and the seller forgot to include the rubbers and elbows.
However he has assured that these will soon follow.
Hopefully I will have time to peek inside these at the weekend, just to see what we’re working with.
Attachments
Fitted the alternator stator and some wiring this morning
Just the bean can to go now.
Just the bean can to go now.
The gearbox put up a fight.
With plenty of heat and shocking the bolts, 8 of the 9 came out.
There’s always 1 !
This pesky bolt is still stuck fast while I consider my options
With plenty of heat and shocking the bolts, 8 of the 9 came out.
There’s always 1 !
This pesky bolt is still stuck fast while I consider my options
And I had a quick look round the el cheapo carbs.
One of them is in really good condition and just needs a clean.
The other has the pilot jet broken off down inside its recess.
That’s going to be fun to try and get out
One of them is in really good condition and just needs a clean.
The other has the pilot jet broken off down inside its recess.
That’s going to be fun to try and get out
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Ref gearbox bolt,
Get a 6mm drill bit and drill off the cap screw head,once the casings are separated it will be dead easy to unscrew.
It’s the head of the bolt that is stuck,not the threads into the main case
Get a 6mm drill bit and drill off the cap screw head,once the casings are separated it will be dead easy to unscrew.
It’s the head of the bolt that is stuck,not the threads into the main case
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Once you’ve drilled that bolt head off,
I’m assuming you’ve removed the output flange?
Spin the box over and remove the two bolts that hold the selector camplate in place.
Get rid of the Mrs for a few hours and put the whole gearbox in the oven at 150 deg.
Once it’s good and hot ,smack it down hard on the input shaft on a block of wood,
This will pop the rear cover clear of the dowels and allow some clearance to wiggle the cover off with some tyre levers or flat steel bar.
As it’s plenty hot,the rest of the internal parts should shake out onto some old cardboard.
Easy peasy
I’m assuming you’ve removed the output flange?
Spin the box over and remove the two bolts that hold the selector camplate in place.
Get rid of the Mrs for a few hours and put the whole gearbox in the oven at 150 deg.
Once it’s good and hot ,smack it down hard on the input shaft on a block of wood,
This will pop the rear cover clear of the dowels and allow some clearance to wiggle the cover off with some tyre levers or flat steel bar.
As it’s plenty hot,the rest of the internal parts should shake out onto some old cardboard.
Easy peasy
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I should add,you’ll need some welding gloves preferably,
Do not under any circumstances use the good ladies oven mitts or you may well die a slow painful death..
The smell of gear oil in the kitchen can be explained away
Do not under any circumstances use the good ladies oven mitts or you may well die a slow painful death..
The smell of gear oil in the kitchen can be explained away
Couple of hours on it this afternoon.
I did some very careful drilling with mucho measuring but I’ve got that seized idle / pilot jet out of the carb body. Luckily the brass is really soft.
The idle jet threads in the carb body survived unscathed.
Really chuffed with that - these carbs can be saved now.
I also made a small step forward on the gearbox - in removing the hugely tight nut on the output drive flange.
A lot of huffing and puffing and scaffold tube extending the tools for more leverage but the nut gave up.
I haven’t got the output flange itself off the shaft yet.
I guess I need a decent puller for that ?
One good thing is the output shaft is now turning through 360. Feels rough though and it’s definitely in gear. Now it’s turning I will try refitting the shift lever and see if I can find neutral.
Thanks for the tips @mikeyboy
I’ve ordered a damaged cap head removal tool so will try that first. If that fails, I can get it in the drill press and drill the head off.
I’m banned from using the domestic oven for heating engine parts or the dishwasher for cleaning them.
I don’t recall the barbecue being mentioned though
I did some very careful drilling with mucho measuring but I’ve got that seized idle / pilot jet out of the carb body. Luckily the brass is really soft.
The idle jet threads in the carb body survived unscathed.
Really chuffed with that - these carbs can be saved now.
I also made a small step forward on the gearbox - in removing the hugely tight nut on the output drive flange.
A lot of huffing and puffing and scaffold tube extending the tools for more leverage but the nut gave up.
I haven’t got the output flange itself off the shaft yet.
I guess I need a decent puller for that ?
One good thing is the output shaft is now turning through 360. Feels rough though and it’s definitely in gear. Now it’s turning I will try refitting the shift lever and see if I can find neutral.
Thanks for the tips @mikeyboy
I’ve ordered a damaged cap head removal tool so will try that first. If that fails, I can get it in the drill press and drill the head off.
I’m banned from using the domestic oven for heating engine parts or the dishwasher for cleaning them.
I don’t recall the barbecue being mentioned though
A blow lamp on the gearbox cover and tapping it upwards with a wooden mallet usually works for me. But that taper really needs the BMW special tool to make it quick and painless. BMW Club tool hire? Are you a member?
I’m not a BMW club member so not able to take advantage of tool hire service.
I can confirm that the output flange has succesfully resisted my 2 leg puller.
A 3 leg puller and some heat perhaps ?
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