|
Post by Ihaveadream on Jan 19, 2023 22:44:18 GMT
According to the vin plate , my engine number is 2007308.
The engine casing has no number on it....
Am waiting for the V5 to see what that says.
Britpete, I love the black engine casings. Did you use rattle cans, or a professional gun .
looks so nice.
Bob
|
|
|
Post by BritPete on Jan 19, 2023 23:11:37 GMT
According to the vin plate , my engine number is 2007308. The engine casing has no number on it.... Am waiting for the V5 to see what that says. Britpete, I love the black engine casings. Did you use rattle cans, or a professional gun . looks so nice. Bob Rattle Cans - post pic of paint tomorrow
|
|
|
Post by Ihaveadream on Jan 22, 2023 20:50:33 GMT
Does anyone know where this came from ? I know it is from the mid section or back. Thanks
To remove the motor, I will take her off the stand, lay her down on one side, remove the wheel and legs and lift the frame off.
|
|
|
Post by duffer on Jan 22, 2023 21:49:25 GMT
The "bit" is, I think, from one of the rubbers that the two 10mm bolts go through which hold the fuse box panel. I noticed you removed it. My God.... I have become a nerd 🤓
|
|
|
Post by Ihaveadream on Jan 23, 2023 17:03:53 GMT
Thanks for being a "nerd" duffer.. I appreciate it anyway.. The engine is now out , I stopped being lazy and made a frame to hold it so I could lift the frame off . Centre stand has major wear , so that will need repairing, but apart from that, it should be a straight forward. I can only spend a few hours a week on this project , so there is no rush. This is my first renovation, and I want to get it right. The forks came out by with a few inches to spare by tilting the frame back slightly.. My main bike needs a service as does the car, so the Honda will have to wait, but it will give me time to strip the engine and measure the rings and bore. Bob
|
|
|
Post by Ihaveadream on Jan 24, 2023 16:57:01 GMT
The engine is now on the bench. No play on the pistons at any where in the bore, which is a good sign. There is no lip at the top of either bore. Valves will be lapped in and new rings as necessary. The four inner head bolts were reluctant at first, but they came out to my relief. My engine predates the oil seals on the inner bolts. Perhaps this bike was regularly serviced and not thrashed . The fact that the engine revved freely and was relatively quiet, meant it was worth the money as a partial renovation , due to some work being already done. I suspect to renovate a bike from being a rusty seized heap, to showroom condition would be expensive, so I would pay very little money for it. Bob
|
|
|
Post by johnjones on Jan 25, 2023 21:03:35 GMT
Hi again, to progress with engine strip down, you need to refit the head and cam Minus the rocker arms placing bolts well cleaned and threads good into correct original well prepared holes.
Its best, if the decision has been made to strip down engine, to slacken head bolts, clutch nut and flywheel bolt before removal of engine.
May be best to fit head etc. As described, with rocker arms removed from the fitted cam carrier castings so no cam chain worries involved with flywheel bolt and clutch nut undoing with engine in frame and using its equipment.
Doing it on the bench will need an assistant,mallet, flywheel puller bolt ( pusher bolt really ), clutch peg spanner/socket and a "tool" to hold the front sprocket, the bike has a means of doing that.
Is your front sprocket worn out/ Gunna be renewed anyway ?
You have access to a welder ?
No engine number ? Evidence of it being ground off or similar ?
Frame number, frame plate and v5
|
|
|
Post by Ihaveadream on Jan 26, 2023 22:16:59 GMT
Hi John,
I was looking in the wrong place for the engine number, which is 2007320
frame number is 2007308.
The flywheel retaining nut came off using my Clarkes electric rattle gun, I will use a bolt to get the flywheel off, and use a chain around the engine sprocket to shift the
clutch castellated nut, once I have made a tool up.
Have not inspected the front sprocket yet, but it was loose , unless it is designed to have end float......
The crucial time for me is when I turn the casing over and remove the bottom cover. I shall take lots of photos and probably video when the gear cluster
comes out, especially understanding the gear selector arrangement, spacers etc. Have not done a gear box for a while. So, one small step at a time.
Why the question about a welder?
Thanks for the input.
Bob
|
|
|
Post by BritPete on Jan 26, 2023 23:01:05 GMT
Hi John, I was looking in the wrong place for the engine number, which is 2007320 frame number is 2007308. The flywheel retaining nut came off using my Clarkes electric rattle gun, I will use a bolt to get the flywheel off, and use a chain around the engine sprocket to shift the clutch castellated nut, once I have made a tool up. Have not inspected the front sprocket yet, but it was loose , unless it is designed to have end float...... The crucial time for me is when I turn the casing over and remove the bottom cover. I shall take lots of photos and probably video when the gear cluster comes out, especially understanding the gear selector arrangement, spacers etc. Have not done a gear box for a while. So, one small step at a time. Why the question about a welder? Thanks for the input. Bob There is a float on the front sprocket
|
|
|
Post by johnjones on Jan 27, 2023 0:20:26 GMT
Flywheel retaining bolt
Rattle gun, I hope the flywheel was prevented from turning and the cam chain was not bunched up around the crank
Welder....using a knackered front sprocket, teeth wise, and a suitable knackered half inch drive socket, I made an output shaft locking tool with the aid of a long breaker bar and assistant.
Sounds like your making a chain wrench method
You have a manual ?
CMSNL shows positions of parts well
Flywheel puller ( pusher ) bolt same size and thread as oil filter bolt. DONT use that but take to bolt supplier, or measure, and approach bolt supplier for suitable long bolt.
|
|
|
Post by Ihaveadream on Jan 27, 2023 17:41:15 GMT
Hi John,
A holding bar held the flywheel whilst using my rattle gun, but I have decided to get the proper tools . More money , but hey ho I got the bike cheap enough.
Back in the day, I had a cb750 F1 which I loved, so perhaps that might be next if the price is right.
Haynes manuals are okay, but the on- line manuals are good too, and of course you tube.
When I rebuilt my BMW k100 , I printed off all the exploded parts from each section, to ensure correct assembly.
One question, is the clutch nut re-usable .
That will be all for a while, main bike needs a service and that money has just been spent on heated pants.. feeling the cold , I must be getting old.
Bob
|
|
|
Post by buster on Jan 27, 2023 19:40:58 GMT
the clutch nut is reusable (assuming no ones been at it with a hammer and punch) the washer behind it is quite critical, it has outside stamped on it and its amazing how often you find them the wrong way round, then they wedge themselves into the clutch basket...
looking forward to seeing how the build goes
some cable ties can be useful for the gear box shafts, if you slide the needle roller bearings of and put cable ties on the ends of the shafts then you can inspect and clean the components without losing the order. if bits do slip off then cms have some great diagrams...
|
|
|
Post by johnjones on Jan 27, 2023 20:50:00 GMT
BMW, heated pants you lucky bugger
Hope those fragile stator windings have not been damaged
Outside
And which way round was the clutch nut ?
Flywheel extractor and clutch nut peg spanner/socket are the only two "special tools" needed to work on these engines
Picture of clutch nut
Having trouble removing the cylinder ?
Just free/tear the base gasket to unstick it, but leave cylinders on for now, you will see why in a bit
Two head bolts and spacers or some suitable length threaded rod. You have any spare main bearing bolts ?
B and D workmate, the mgb type
With Genny and clutch side apart, engine upsidedown, sump off
How was balance system DOT
CMSNL is a brilliant free resource
Just take your time
If your using violence your doing it wrong
Post lots of pictures
|
|
|
Post by Ihaveadream on Jan 27, 2023 21:47:23 GMT
Heated pants were never a necessity on my bmw k100lt , the tank was ally and got nice and warm from the returning fuel. Great , apart from hot days when your legs got cooked.
Riding my r1200rt , I get cold thighs, maybe a result of the screen shape.
I have tried different base layers, but then I feel like a sumo wrestler trying to get on the bike, hence heated pants. As you get older you do feel the cold more.
My wife has a heated jacket and loves it. Got to keep the pillion happy...
To business.
The flywheel is still in situ.
The clutch nut has the chamfer facing out.
I have not tried to lift the barrels yet. What is the issue with leaving them on for now?
The balance system dot was at 9 oclock if I remember, but where ever I set the tensioner, the chain was very slack, and with the mileage at 43k, time for a new one.
CMSNL is great, and will be a useful source of info.
Am lucky to have a big work bench and lots of shelving to collect plastic cups marked with what and where from...
As I need to spend money on the 1200 service, I will remove the valves and post pics .
Thanks for the guidance.
Bob
|
|
|
Post by johnjones on Jan 28, 2023 7:24:58 GMT
Yes, keeping swmbo happy is really important.
Balance system worn out, haven't come across a really bad crank sprocket, yet.
Clutch has been off before then due to clutch nut.
Releasing cylinder base gasket can be problematic sometimes. Find dowel location ( CMSNL ), pistons at BDC and good fit round long wood "levers" would help save fins.
Pictures...
|
|