Post by metricmike on May 6, 2017 20:21:24 GMT 1
Hi Everyone,
So I'm in the process of tearing down my NTV 650 P engine.
I'ts out of the frame on a bench, and have gotten it stripped down as far as both cylinder heads are off.
In order to remove the cam chains on both front & rear cylinders I need to remove the alternator rotor and stator, and also the clutch/pre-spark.
Kinda tricky without the genuine honda tools. I've succeeded in removing the left hand threaded nut on the alternator rotor using a boa strap and cracking the nut with a swift wack from my trusty hammer on my 17mm spanner, whilst holding the strap in my other hand. Result! Without the rotor extraction tool though. I'm kinda stuck. Having seen the part in the Haynes manual picture (page 9.22 - illustration 33.5b) and also found pattern tools online it looks like a fairly large bolt. In an attempt to overcome this today, I picked up a 50mm M16 bolt (it was the largest on the shelf). Unfortunately, not big enough. Does anyone know the thread size? Could it be M20? And once I do have the right size part/tool. Is it just a case of winding it into the the thread and pulling the rotor off of the shaft???
Secondly. And considerably more frustratingly. Again due to the lack of Honda service tools, I attempted to remove the clutch. Improvising with a piece of 30x4 flat bar, I drilled 2 holes on 44mm centres to match that of the clutch. Ground out a curve to allow my socket to have clear access to the clutch shaft nut. Great! Using a couple of M6 bolts it fits nicely on to the threads the pressure plate bolts came out of. Take the strain on my improvised tool whilst also using my socket to try cracking the clutch shaft nut. Yes! It moved. Erm.... No it didn't. My improvised tool came away in my hand along with the 2 threaded sections from the clutch basket casting it was bolted too!!!!! Clutch shaft nut still fixed solid. I'm now really backed into a corner... Any suggestions anyone? I don't dare try using my improvisation again through fear of the same thing happening again on the other 2 bolt holes of the clutch basket casting. On the other hand, even if I wanted to use the genuine honda clutch holder tool, I cant because 2 of the points it picks up are now broken. I cant use the gearbox to engage any gears, and hold a spanner on the UJ on the output shaft to lock the clutch as its all in bits, plus I cannot get the shifter to engage anyway. I pretty stuck now with absolutely no clue what to do.
Any suggestions would be greatly appreciated. Thank you
So I'm in the process of tearing down my NTV 650 P engine.
I'ts out of the frame on a bench, and have gotten it stripped down as far as both cylinder heads are off.
In order to remove the cam chains on both front & rear cylinders I need to remove the alternator rotor and stator, and also the clutch/pre-spark.
Kinda tricky without the genuine honda tools. I've succeeded in removing the left hand threaded nut on the alternator rotor using a boa strap and cracking the nut with a swift wack from my trusty hammer on my 17mm spanner, whilst holding the strap in my other hand. Result! Without the rotor extraction tool though. I'm kinda stuck. Having seen the part in the Haynes manual picture (page 9.22 - illustration 33.5b) and also found pattern tools online it looks like a fairly large bolt. In an attempt to overcome this today, I picked up a 50mm M16 bolt (it was the largest on the shelf). Unfortunately, not big enough. Does anyone know the thread size? Could it be M20? And once I do have the right size part/tool. Is it just a case of winding it into the the thread and pulling the rotor off of the shaft???
Secondly. And considerably more frustratingly. Again due to the lack of Honda service tools, I attempted to remove the clutch. Improvising with a piece of 30x4 flat bar, I drilled 2 holes on 44mm centres to match that of the clutch. Ground out a curve to allow my socket to have clear access to the clutch shaft nut. Great! Using a couple of M6 bolts it fits nicely on to the threads the pressure plate bolts came out of. Take the strain on my improvised tool whilst also using my socket to try cracking the clutch shaft nut. Yes! It moved. Erm.... No it didn't. My improvised tool came away in my hand along with the 2 threaded sections from the clutch basket casting it was bolted too!!!!! Clutch shaft nut still fixed solid. I'm now really backed into a corner... Any suggestions anyone? I don't dare try using my improvisation again through fear of the same thing happening again on the other 2 bolt holes of the clutch basket casting. On the other hand, even if I wanted to use the genuine honda clutch holder tool, I cant because 2 of the points it picks up are now broken. I cant use the gearbox to engage any gears, and hold a spanner on the UJ on the output shaft to lock the clutch as its all in bits, plus I cannot get the shifter to engage anyway. I pretty stuck now with absolutely no clue what to do.
Any suggestions would be greatly appreciated. Thank you