Show Posts

This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.


Messages - AshimotoK0

Pages: 1 ... 333 334 [335] 336 337 ... 440
5011
Misc / Open / Re: Honda drum brake steel liner
« on: June 24, 2015, 07:43:08 AM »
I have a feeling that the hub is cast round the liner so swoppingone to another won't work, but on here somewhere is the address and number for a man in huddersfield who will machine out the old liner and shrink in a new liner then machine to size---he did several 500/550 rear for me quite cheap as i was in no rush.

I would not do this for a "Racer" as its possible for the liner to move if got very hot but i doubt very much you will do that to yours Ash

Found it

Paul Jackson Huddersfield near Junction 23 M62

01422 378100



Cheers Bryan.. you have answered another question as there is alloy flashing around the exposed circumference of the liner so yes cast in.
Will weigh up the pros and cons of drilling blind holes versus  repair of K0 one. Yea not much likelihood of me doing any racing  :D

There used to be a guy I dealt with for medical flow straighteners for air, based  in Leicestershire, I think,  and his sideline was replacing Honda drum liners .. can't remember his name though and that was about 18 years ago! His surname may have been James.
Ash

5012
Misc / Open / Honda drum brake steel liner
« on: June 24, 2015, 01:20:32 AM »
Got three of the CB250/350 K front drum hubs  with the extra 'blind' spoke holes in, specific to K0/K1 models plus one later one without 'blind holes'. Problem is one K0 one has a cracked liner. Anyone know how to remove the cracked one and is it possible to swap them, as the later front hub one is fine. I do have access to a lab oven that goes to 450 degrees Centigrade . Other alternative it to CNC the 'blind' holes in the later one. You can spot that the drum is incorrect a mile off on a K0/1 . I think cracking was a common problem, I know my 250K2 suffered it back in the day. That K0 on 'Man Lab' that James May swapped with DS for his museum has the wrong front hub fitted BTW, probably for that reason.

Ash

Here is a library picture of the hub with 'blind holes'

[ Guests cannot view attachments ]

5013
CB750 / Crankshaft bearing selection bulletins/ADVICE NEEDED
« on: June 24, 2015, 12:40:04 AM »
Trying to sort out new bearing shells for my 750K0 and dug out the old Honda Service Bulletins... I have probably put these on before but for anyone who has not seen them before,  here they are.

Ash

[ Guests cannot view attachments ]
[ Guests cannot view attachments ]


5014
CB350/400 / Re: Pattern part rims from DSS
« on: June 23, 2015, 10:16:17 PM »
Cracking deal on later style 400/4 DID rims from Yamiya via Saisei (same as DS flogs but way cheaper). would be worth him sea freighting a batch in as I gather from James that the airfreight is quite expensive. Personally, I hate the side scripting on those later style DID rims but I am just a picky, obsessive b*gger and nowt wrong with them in all honesty..

5015
Misc / Open / Re: Finish on Honda Auto -advance units
« on: June 23, 2015, 09:00:13 PM »
They were probably just passivated zinc plated

Hmmm can't see any form of zinc plating on any of mine.

5016
CB350/400 / Re: Pattern part rims from DSS
« on: June 23, 2015, 08:41:21 PM »
"David Silver Spares wrote: "Hi Ashley Derrick, cannot seem to log in, have registered and been accepted. Here is my Resonse : DID rims; definetely the Rolls Royce of wheel rims and suppliers to Honda as original equipment rims. Of course, these are the most expensive but we stock them for all SOHC's. Union Cycle rims; Made in Thailand, quality OK, have had some CB400F's where the holes needed reaming out slightly. OK for a wheel builder to build, tricky for individuals if this is found. Only available for smaller bikes up to CB400F, have used them many times on our own CB400F restorations. Sumitomo rims: The 'Lada' rim, fits, works but the joins are crude (agricultural) and the chrome is not the best. Chinese made but to be fair, a price to match and if you don't intend to fit it to a show bike but one that will get occasional use in Summer, this rim will be fine. Only available for CB500-750's. As the saying goes, you get what you pay for and by keeping 3 brands we are trying to suit all requirements and pockets."

That was from January 2014.

Rechroming old rims is around 100-> 110 GBP each.

Ash

5017
CB350/400 / Re: Yamiya Exhausts
« on: June 23, 2015, 04:27:51 PM »
Betcha they turn out to be double-skinned like the 750 no.no. ones. Those crafty b@ggers at Yamiya obviously can source from the original manufacturers. Like the wrinkle tanks that supposedly have the same wrinkle patterns as OEM. Not so good news for Ian at Motad though, if they are double skinned. He's put a lot of effort into their repro 400/4 system and a nice bloke to deal with.
Wonder why Yamiya told me they had no plans to reproduce, no so long back (pipes I mean)  :D

They are now selling original style  400/4 sprockets too ... bikepusher is gonna have to find a new money making scheme :D

http://www.yamiya750.com/index.php?main_page=product_info&cPath=179_274_193_225&products_id=3133&language=en


APRIL THIS YEAR ON FACEBOOK !

Ashley Derrick Great to see you are now selling CB400F parts. Will the original Sankei front exhaust pipes ever be re-manufactured please? Kind regards .. Ash (UK)
Like · Reply · 5 April at 19:49

Motorcycle Yamiya 闇矢屋 Ashley Derrick Sorry for our late reply. We're afraid we don't have a plan to re-manufacture the original Sankei front exhaust so far. However, we will have more and more spare parts for CB400F.
Like · Reply · 18 April at 03:22
Ash

5018
Misc / Open / Finish on Honda Auto -advance units
« on: June 23, 2015, 11:06:59 AM »
Put a couple of auto advance units into the Ashimoto patent vibratory polisher and they came out looking pretty nice. I don't think these were ever plated, so what does everyone think about final finish to match original? Spray with WD40 maybe or was there a surface finish? They are Nippon Denso (ND) and Hitachi manufactured.

Ash

5019
CB350/400 / Re: Yamiya Exhausts
« on: June 23, 2015, 11:01:31 AM »
It was only a simplistic calculation  David. I am sure whatever price you come up with,  you will giving us the best deal anyway, particularly over your namesake  :D
Can you ask Yamiya if the headers are double-skinned please and also if they have any plans for CB500F pipes ( I believe originally HM323, as some members need them).

Keep up the good work and I hope everyone here is going to support you !

Ash

5020
CB500/550 / Re: Well worth the money
« on: June 23, 2015, 08:48:33 AM »
Are those my old exhausts on there Graham?

No mate, the exhausts on the black one have been re-chromed. Yours are on the gold one.

What did you pay for re-chroming Graham and who did it?

Gorgeous looking bikes BTW

5021
CB750 / Re: Starter Motor
« on: June 22, 2015, 08:52:29 PM »
Don't worry about it, we all do it.
You need the Ashimoto patented low voltage protection device. B8stards I worked for let the patent lapse so you can copy it. :D

http://www.google.co.uk/patents/US5604656




[ Guests cannot view attachments ]

5022
CB750 / Re: Starter Motor
« on: June 22, 2015, 02:44:35 PM »
Hi,
     Thank you Very Much for those replies and especially the pics ,I am doing the test as Honda has shown on the field coil as we speak . Will appraise later . Thanks again , Alan .

I know I keep banging on about it but the information is here in bucket loads in my Dropbox.... 125 meg download though so be warned  ;D

https://www.dropbox.com/s/anpzqn2r55f1o9k/CB750%20Mega%20Parts%20Service%20and%20More.pdf?dl=0

5023
CB350/400 / Re: Yamiya Exhausts
« on: June 22, 2015, 02:40:36 PM »
Well sod that, when are they going to do a system for the 500-4?

Don't forget it was only a few weeks ago I asked Yamiya if they indented doing the 400/4 ones and they said no. Bet they have access to the supplier who last sold genuine 500/4 pipes to Honda.

BTW the guy who cleared out 'Queenies' said he found a no.no. original 750 pipe tucked under a radiator. That place must have been an amazing place. Only ever saw the sales counter...friendly bunch though, as I remember.

5024
Misc / Open / Re: Whatever happened to quality ?
« on: June 22, 2015, 09:13:01 AM »
Happy for you Ash but no idea what it is

Stanley rear lamp housing .. as fitted to early UK bikes (CB750K0/K1, CD175 sloper, CB250/350 K0,K2, C50). (not 400/4 though Tom).. They always pit the chrome at the top where the 'Stanley bla bla text is stamped. There was also one sandcast 750 fitted with one ... the Gold 'Brighton Show' PP bike.

5025
CB750 / Re: Starter Motor
« on: June 22, 2015, 08:26:47 AM »
Field is virtually short circuit anyway. Best way to check is connect 12v in series with an 18 watt bulb and the field winding. The 1.5 A series current, should magnetize the pole pieces . Check that both fields have approx. same magnetism. Identify with an ohm-meter the pairs of segments on the commutator  relating to each armature coil, in turn  and pass the 1.5 A(using the bulb)  through each in turn and check for magnetism with a screwdriver on the laminations. If all OK with approximately the same magnetism, suspect the commutator is faulty or a sticking brush or brushes not contoured to the curvature of the comm. Clean up the comm as described by Trigger. If its badly scored or worn have it skimmed. The 'undercut'  of the mica between segments of the comm should be more than 0.2mm (I think but will check). As Trigger says, clean out with a toothpick and cleaner.. also Check that there is infinite resistance between the copper segments and the armature laminations and also the field coils and the tubular casing. If you can find an old motor shop with a 'growler' they can check the comm magnetics but my method above works for me.

Bet you can fix it if you do all of above or at least convince yourself that it is indeed sha**ed but as Trig says, they are normally very reliable.

The original shop manual gave very little .. My 1968 CB250/350 manual was the best on it.

Below is the '77 CB750 offering from Honda but I would still use my method in the absence of a Service tester (basically used as an Ohm-meter anyway in this test)

I do have a spare motor but I won't let it go until I have rebuilt my K0.



[ Guests cannot view attachments ] [ Guests cannot view attachments ] [ Guests cannot view attachments ]
Ash

Pages: 1 ... 333 334 [335] 336 337 ... 440
SimplePortal 2.3.5 © 2008-2012, SimplePortal