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Messages - craignation

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British Bikes / Re: Ariel missfire
« on: December 05, 2010, 10:01:12 AM »
There is barely any oil pressure to speak of in any roller bearing engine,,,,,,,,,,,,I agree but this plunger pump will deliver very high presure dependant on what its working against , my thinking is by offering a resistance to the return i may get more oil up top , i think this will be a trial afair as to much will cause another problem and one is enough for now . thanks again for your help

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Japanese Bikes / Re: Honda 400/4 -> 750/4
« on: December 04, 2010, 11:03:08 AM »
Quote from: rogerwilko on July 11, 2010, 01:40:37 AM
He's talking through his sphincter! Why would you want to change it anyway???
correct , even the 550 does not fit , frame is tottaly differant  your mate is winding you up

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British Bikes / Re: Ariel missfire
« on: December 01, 2010, 12:34:43 PM »

I've been giving your OHV lubrication setup some further thought" thankyou , so have i and what you say makes good sence and i will be altering the setup taking your advice . Also i now have a remote filtter , car spin on type and the T off for the rockers is After the oil has passes trough it on its way to the oil tank , do you think moving the T to before the oil gets to the filter might help deliver more oil to the rockers , Im thinking there might be more resitance before the filter and this may force more up to the rocker ? all help is welcome thankyou PS when i work out how to upload pics i will post some of the bike , its not standard but i like it .

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British Bikes / Re: Ariel missfire
« on: November 30, 2010, 08:04:51 PM »
Change back to the standard factory layout ......... the timming chest has no oil union ( must be off VB ) so standard is out for now  , but i will feed the exhurst rocker first as i think ( hope ) you may be on to somethink there , thankyou for your help , any other surgestions welcome

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Identify these bikes! / Re: MM motorcycle Blackburn
« on: November 30, 2010, 07:54:57 PM »
this is the bike i have ( not the actual one just the same model ) , but mine is fitted with a blackburn engine , this bike is a work of art and i cannot belive the build quality , i will take some pics of mine when it stops snowing as ive got to drag it out the back of the garage , cut and past link
http://www.vintagebike.co.uk/pictures/1932-mm/

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Identify these bikes! / MM motorcycle Blackburn
« on: November 29, 2010, 01:56:47 PM »
i have a italian MM from about the early 30s , its fitted with a 350cc OHV Blackburn engine ( looks factory done ) , looks like Burman gear box with Velose ( ? not sure on spealing here ) foot change conversion , i have not started restoration yet as i am still looking for information reguards this machine , any help welcome

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British Bikes / Re: 1946 Ariel Red Hunter 350 Twin Port
« on: November 29, 2010, 12:15:26 PM »
is the tank white and crome by any chance ?

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British Bikes / Re: Ariel missfire
« on: November 29, 2010, 08:25:24 AM »
you may have something here as all valves and guides are new , i will try some spare rocker boxes i have also , this bike is a bitsa and is made from Ariel ridgid VB rolling chassis with RH engine fitted , there is no regulator fitted , oil to top end is via a branch off the return from pump after spin on filter , it goes up to inlet rocker then over to exhurst where there is another branch which goes down to a pipe which drops oil straight on top of the cam ( there used to be another T here which went round and fead oil into the rear of the cylinder which i did away with during the rebuild ) , this might be asking to much of this surply , but the engine has some local race history where it performed very well prior to me rebuilding it , the tolarances now may be just to tight , i have also put a standard piston back in as it looks like it was running on Methonol or dope , thankyou again for your help and it has given me some new ideas any more are welcome ( apart from give up ) ,

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British Bikes / Re: Ariel missfire
« on: November 28, 2010, 06:19:59 PM »
tufnol spacer about half inch fitted , i was told about heat transfer from iron heads , thankyou any other ideas welcome

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British Bikes / Re: Ariel missfire
« on: November 28, 2010, 02:39:47 PM »
Quote from: JFerg on November 27, 2010, 10:00:58 PM
Try changing the HT lead and the spark plug cap.
JFerg
changed the HT twice and have no cap on now as i thought this could be problem , thankyou any other ideas

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British Bikes / Ariel missfire
« on: November 27, 2010, 11:02:41 AM »
my Ariel 500 all iron @ 1949 starts to missfire when it gets hot  , or about two miles from home , this problem has me scraching my head . things i have done , repaced mag twice , re laped valves , fuel cap breather is clear , reground head to barrel , changed carb and cheaked fuel surply . chq compresion . changed plugs at least 10 times , anyone see what i have missed here or had a simalar problem , any ideas welcome , Ive never had a problem like this that seams to go against all i know ( not enough ) and im sure be something simple but what , If it makes and odds im running a Renolds cam and concentric carb

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British Bikes / Re: Speedtwin brake problems
« on: November 27, 2010, 08:35:59 AM »
try haveing the drum skimmed with the rim ON this helps a lot , if the front brack is to good you may get some odd handling issues with forks diving , bottoming etc , thats why a lot of outfits use the earles ? type , how far are you willing to part from origional ? how fast do you want to go ?

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British Bikes / Re: T100r crankshaft endfloat
« on: November 26, 2010, 06:04:53 PM »
"Why do spares suppliers keep on punting out those awful brass bushes? it can't be that more expensive to copy the original set up"
it would be a misstake to put a brass bush here and terminal for the crank , this bush is ph/bronze and is quite OK ( on the 350 ) if oil is changed regular , my 1958 3ta has done many miles on this bush , i am very surprised to here they where still useing it in 66 on there T100r , but something new every day , by the way this bush ( as fitted origional ) has a blind spiral track machined in it to ensure oil gets to the full width of the bearing surface , i have seen some for sale with out this track and should not be fitted

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