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CMSMJ1
Forum Veteran
United Kingdom
3623 Posts |
 Posted - 23/07/2007 : 12:39:10
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Probably the right place for this..
basically I have bought a new RWB NC30 and I want to trace the prev owner.
I bought it from Jonnyvfr's mate, Gary, in Hartlepool. It was not running due to an electrcal issue which I have now sorted out.
Thought people might know of this bike and may give me some info about it. It was sitting for 4 months wih Gary and for sometime before that with the prev owner, from Yorkshire, and this is who I am looking to speak too.
The pulse generator wire was *possibly* snipped/snapped at the bundle by the rear light connector and so no spark.
Once I fired it up it sounded OK but then with a sniff of revs it became apparent that the motor was not healthy. It fires on 3 and clatters in a huge way at anyting above 1000 revs. I heard Jack Lead's bike last week - that was nasty..but this is nastier! rised with revs - sounds like one of the cam lobes has a flat edge and it is whack whack whacking something in there. I have a spare motor that I wil fit so not overly bothered about this right now....
But - The prv owner apparently serviced it before he went away on some holiday, came back and it did not run so it was stuck in the shed, then sold to Gary who had it 4 months and did not manage to make it run. The conspiracy theory in me says the pulse generator wire was snipped so that it could be sold as electrical, rather than a tractor sounding dead motor.
Other that this - it is in top nick, better than my current bike.lol
err..ramble over..but I hope you get the point! Any one who recognises an NC with Gxxx XTC for reg let me know! |
89 NC30 my mate Number 9
IMPERATOR REX ANGLORUM |
Edited by - CMSMJ1 on 23/07/2007 13:50:05 |
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iftnfs
Senior Member
United Kingdom
2257 Posts |
Posted - 23/07/2007 : 12:43:04
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| Sounds like the shell bearings have gone. Stick the spare engine in and don't run it again until its fixed as the top ends and other bits are probably still ok in the knackered engine. Have fun with the engine swap, 6 hours of your life wasted. |
World Famous in Barnsley |
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CMSMJ1
Forum Veteran
United Kingdom
3623 Posts |
Posted - 23/07/2007 : 13:50:42
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it sounds very top endy and front bank though. nothing like Oz's bike sounds.
I am arranging a garage for it and should be around with it tonight and begin the stripdown. Saying that, I still need to collect my spare engine from mates house and put the heads back onto it..fun fun fun.
It will be OK I reckon...6hrs in Tim time..more like 10 hrs of Mark time..lol |
89 NC30 my mate Number 9
IMPERATOR REX ANGLORUM |
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vfrman
Moderator
USA
8005 Posts |
Posted - 23/07/2007 : 14:42:33
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6 hours! HA! I can swap a motor on three! Probably because I have done it twice now...  |
91 VFR400R
Hill AFB, Utah
USA |
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CMSMJ1
Forum Veteran
United Kingdom
3623 Posts |
Posted - 23/07/2007 : 14:45:19
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OK smartass!! lol
Some people don't blow their engines after expensive rebuilds hey! :-P
is 3 hrs including full bike to nothing t full bike again? Or just the in and out of the engine? |
89 NC30 my mate Number 9
IMPERATOR REX ANGLORUM |
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grandpanot
Senior Member
USA
1143 Posts |
Posted - 23/07/2007 : 15:37:31
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With one hand tied behind his back and his eyes closed and after 5 martinis and no sleep in eight days! LOL
Of course if I were "helping" it would take 23 hours. |
Hello, my name is Jeff and I am a Trackaholic.(EVANSTON, Illinois) |
Edited by - grandpanot on 23/07/2007 15:39:21 |
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viper_biker
Administrator
Ireland
7563 Posts |
Posted - 23/07/2007 : 15:45:49
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I don't envy you Mark for the engine swap. I'm re-framing my track bike shortly (might do it this weekend) and I really can't be arsed. A few mates round and the kettle on the boil ant it'll be done in no time  |
Social worker: "Glen honey, I got a question for you. What do you do for a living?
Quagmire: "I got a question for you. Why are you still here?" |
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viper_biker
Administrator
Ireland
7563 Posts |
Posted - 23/07/2007 : 15:47:15
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quote:
Originally posted by grandpanot
Of course if I were "helping" it would take 23 hours.
I have mates like that too |
Social worker: "Glen honey, I got a question for you. What do you do for a living?
Quagmire: "I got a question for you. Why are you still here?" |
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Royster81
Left handed surfer
Ireland
3914 Posts |
Posted - 23/07/2007 : 15:49:46
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quote:
Originally posted by viper_biker
I'm re-framing my track bike shortly (might do it this weekend)
now that will be surprising
quote:
Originally posted by viper_biker
A few mates round and the kettle on the boil and it'll be done in no time
and i'm only coming round if you have some diggy jiggies to go with that cuppa tea...
you need any other bits  |
400R,loud proud and modified. |
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CMSMJ1
Forum Veteran
United Kingdom
3623 Posts |
Posted - 23/07/2007 : 16:00:53
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Yeah..going to need loads of tea, loads of those Irish Diggy Jiggies (plain choco for me I think) and even some beer for the celebration when it roars into life after the surgery.
I will strip it to bare bones tonight, then have the replacement motor brought over and introduced and leave them alone for the night. football on weds means engine out and new one in for thurs/friday and hopefully some tidying up of the wiring etc before all systems go for the weekend.
bring it on....sort of!! |
89 NC30 my mate Number 9
IMPERATOR REX ANGLORUM |
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Royster81
Left handed surfer
Ireland
3914 Posts |
Posted - 23/07/2007 : 16:16:55
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lots of pics mark mate and start a topic for it too,i'd like to see this all done in great detail
good luck and remember not to dunk the diggys too long in the tea or they break up |
400R,loud proud and modified. |
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viper_biker
Administrator
Ireland
7563 Posts |
Posted - 23/07/2007 : 16:18:35
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quote:
Originally posted by castroljc
and i'm only coming round if you have some diggy jiggies to go with that cuppa tea...
you need any other bits
Diggy jiggys are already stocked up, lunch (and possibly dinner, depending on how long we're at it (building the bike that is)). I'm off on Friday but out with work on Friday night so I'll get started then.
Royst, I'm gonna need the swing-arm removal thing and my BIG ratchet set too. So are you confirmed for the weekend then? (just waiting on a reply from Stu and I'll give Chris a shout about wiring in the Acewell too) |
Social worker: "Glen honey, I got a question for you. What do you do for a living?
Quagmire: "I got a question for you. Why are you still here?" |
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iftnfs
Senior Member
United Kingdom
2257 Posts |
Posted - 23/07/2007 : 16:23:25
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| And remember its possible to swap engines without displacing any of the hard earned dirt encrusted onto if you're really carefull! |
World Famous in Barnsley |
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giff
Senior Member
United Kingdom
1414 Posts |
Posted - 23/07/2007 : 17:35:42
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| That broken wire was rather convenient... |
Giff |
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CMSMJ1
Forum Veteran
United Kingdom
3623 Posts |
Posted - 23/07/2007 : 18:13:00
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quote:
Originally posted by giff
That broken wire was rather convenient...
yeah> that is what I thought too.
took me 90 mins to eliminate everything up to the pulse genny wiring..then voila. clean cut too...
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89 NC30 my mate Number 9
IMPERATOR REX ANGLORUM |
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CMSMJ1
Forum Veteran
United Kingdom
3623 Posts |
Posted - 24/07/2007 : 09:46:11
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check this too...just so happens the cdi wires were snipped too..
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89 NC30 my mate Number 9
IMPERATOR REX ANGLORUM |
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viper_biker
Administrator
Ireland
7563 Posts |
Posted - 24/07/2007 : 10:12:52
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Mmm, that's a bit suspect. Cuts are very clean. Previous owners g/f take a hissy-fit???  |
Social worker: "Glen honey, I got a question for you. What do you do for a living?
Quagmire: "I got a question for you. Why are you still here?" |
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CMSMJ1
Forum Veteran
United Kingdom
3623 Posts |
Posted - 24/07/2007 : 10:43:10
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yep - too clean mate..
exactly the same cuts as on the pulse generator wiring too. I was lucky I had already swapped CDI from no9 to see if that was the cause...
oh well - it gets taken to the garage tonight and the stripdown begins. |
89 NC30 my mate Number 9
IMPERATOR REX ANGLORUM |
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jonnyvfr
Settled In Member
United Kingdom
169 Posts |
Posted - 24/07/2007 : 23:22:34
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What a *Censored*, no wonder we couldn't get it going, i was blaming the plugs , thought coils where aright cos the supressor caps all give you electric shocks(crude way of testing but works lol)
at least you have all the bits to get it going i guess, hope the engine transplant goes smoothly. |
2001 Gasgas 250 Supermoto - Phast As Phuck
1985 Kawasaki KX500 B1 - Team Green Mean Machine
1988 Honda CBR400 NC23 - Uber Cheap And Loud
1991 Yamaha TZR250 3XV - Yeah Nigga! |
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CMSMJ1
Forum Veteran
United Kingdom
3623 Posts |
Posted - 11/09/2007 : 11:25:51
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well..another update.
My spare engine has got a snapped camshaft (sucky)...so I have been fiddling with the engine in this bike to make it work.
The no4 cyl was not firing and so checking the clearances shows me to have zero gap between rocker and shim on the inlet side..... The shim is a 2.18 and a 2.15 so this is stupidly tight... cannot get sod all in there at all so suspect this is the reason the engine sounds nasty and this cylinder does not work.
Exhaust is 0.15 and 0.13 so very very tight too..
am collecting some skinny shims at dinner time but wanted to confirm that clearance this tight is likely to be causing poor compression and hence no firing in this cylinder?
Overall, all the clearances are too tight (0.10 avg inlet and 0.21 or so avg exhaust.
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89 NC30 my mate Number 9
IMPERATOR REX ANGLORUM |
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CMSMJ1
Forum Veteran
United Kingdom
3623 Posts |
Posted - 30/10/2007 : 17:53:54
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lol - just found this, not quite got the thread writing skills of Craig.. :-D
the bike has now got a spare engine installed with the clearances all sorted. I fired it up and it ran on 4 for a bit and sounded sweet. Left it to warm up and gave it a few blips..all good. was happy, drank beer..
Nxt time it made a bit of a ticking nose and dropped to a triple. it will fire and idle smoothly but just about fails to fire on the front right hand cylinder (strangely the same as in the other engine that was knackered) Carbs might not be installed super tightly..need to check
Have ran out of time and patience to strip the bloody thing again but I will and am going to swap in a whole fresh head.
The only common part beween the two engines is the cam from the broken one to replace the snapped cam in this one..stranger than fiction!
so..bored of bike building and well pi$$ed off with it... I will let you know when it does work...because the fooker will work or I will nuke it. (or flog it on here for £500 and let some sod fix it with a magic hammer tap...)
ramble ramble...lol..
NC's rule
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89 NC30 my mate Number 9
IMPERATOR REX ANGLORUM |
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