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 - Laverda Dave

Pages: [1] 2 3 ... 173
1
CB350/400 / Re: Transmission output shaft bearing removal
« on: Today at 08:11:46 PM »
A stupid question but is the roller bearing damaged and worn? The gearbox on Ratty had over 45k on it (probably over 50k as the PO had fitted a mini Speedo on the bike at some point). When I checked the roller bearings they were fine, no play, no nasty rumbling and no tight spots. The rest of the engine was in a terrible condition as a result of the PO blasting it with a sand gun. The roller bearing was good to go again but unfortunately the shaft was worn beyond repair and I purchased the two gear shafts from Ted. I have no idea how many miles were on that gearbox but again the roller bearings were absolutely fine.

2
CB350/400 / Re: Transmission output shaft bearing removal
« on: Today at 05:15:24 PM »
I would be tempted to get some local heat onto the spacer (not the shaft itself) followed by some gentle taps with a suitable thin and flat wooden wedge GENTLY inserted between the spacer and the bearing going slowly all the way round, these things usually let go with heat and gentle persuasion. If the wooden wedge doesn’t work get that old flat blade screwdriver out that you use to stir paint with! Good Luck.

3
SOHC Singles & Twins / Re: First start up
« on: Today at 05:06:48 PM »
I've just noticed the oil seal is not on the end of the camshaft, did it fall off when you took the rocker cover off?

4
SOHC Singles & Twins / Re: First start up
« on: Today at 05:04:24 PM »
I would expect to see a bit more oil in the oil bath below the cams if the engine has been running for 3-4 minutes. Did the top end sound rattly when first started and did it quieten down after the oil began to circulate or did it sound the same? I am not really experienced with these engines but if one side of the head has more oil than the other I would be concerned the oil jet on one side is restricted and not delivering the correct amount of oil to that side.

The cam chain is picking up oil from the bottom of the engine as it goes around the crankshaft sprocket and it could be splashing oil at the top end as it comes back up to the camshaft. The oil filter is also in the bottom end where oil pressure is likely to be unrestricted.

It will be very messy but I’d be tempted to run the engine on the starter motor in short bursts with the rocker cover (and fuel tank) taken off and see if the oil is reaching the top end.

5
CB500/550 / Re: CB500K2 carb bit
« on: Today at 02:54:12 PM »
But of course he's going to be buying the whole assembly from you Ash so he doesn't need to remove them  :)

6
CB500/550 / Re: CB500K2 carb bit
« on: Today at 02:52:51 PM »
And are those retainers with felt between them and the housing? If they are they look really difficult to remove as they appear to be staked!

7
CB500/550 / Re: CB500K2 carb bit
« on: Today at 12:48:20 PM »
The retainer for the felt washers go on the carb bodies though, nothing to do with the carb rail spindle (assuming it is a similar arrangement to the 400/4).

8
CB500/550 / Re: CB500K2 carb bit
« on: Today at 12:46:32 PM »
Pretty sure they are.
Ted had an issue with his breaking up during his carb rebuild and posted photos of them. They become damaged when removing the locating dowl by drilling it out and puncturing right through the bush cracking it or when drilling the carb rail to insert a crub screw to hold the lifter rod in position to replace the dowl pin.

9
CB350/400 / Re: 50th Anniverasry CB400/4 Feature in CBG
« on: Today at 12:01:08 PM »
I do agree with you Ash, the articles are always a rehash of what has been said many times before with the same old issues being highlighted of cam chain wear and sticky tensioners etc.

What does grate a bit is every time a magazine writes a feature about a CB400/4 (or any other sohc) they always go to the expert, David Silver for spares advice and of course he's going to plug his own company in the article and state what is available to buy from his company. Don't get me wrong as no doubt without DSS a great deal of spares would be unavailable and I know he is in business to make money but it would be a nice gesture if he gave a discount to VJMC or forum members especially considering all the free publicity he recieves from the articles and the people who restore the bikes using his parts! Maybe a 10% sale of parts in January when we are all busy getting on with our restorations, just something would be nice (and I don't mean free P&P!). There are other people who can supply parts, Nurse Julie for starters and then theres all the invaluable advice and help given on this forum without which most restorations would be impossible or very difficult to complete, its a shame the magazines fail to mention the other alternative suppliers and just stick to the same old people such as DSS and CMSNL. CBG have however spoken to the owners of the three bikes in the feature (all three bikes have stayed in the same family) and this does give the article some real life perspective.

Thanks for posting the restoration articles, I'll be reading those  :)

10
Out & About / Re: OUT AND ABOUT 2024
« on: May 25, 2024, 11:58:22 AM »
Get down there George, it's a great show with a great atmosphere 👍

11
Out & About / Re: OUT AND ABOUT 2024
« on: May 25, 2024, 10:42:41 AM »
Norton were there showing three bikes, the new Commando (special deal of that, a £2k off deal, only now £13K!!). The V4CR was dessed in the 125th anniversary colour scheme, yours for £49K. They also had a V4 in the colours of the Steve Hislop White Charger that won the IOM in 1992 and not for sale.

12
Out & About / Re: OUT AND ABOUT 2024
« on: May 25, 2024, 10:38:56 AM »
I visited the Bike Shed Show in Shadwell (or The Bike Beard Show) in East London last night. To me this is the best motorcycle show as its all one-off builds and some of the ingenuity has to be seen to be believed.

One particular bike was based on a 650 V-Twin Honda and it is a Steam punk build called Isambard. It was built as homage to Brunel and is based on one of his locos. When you first see it looks ugly but looking at it closely the build is pretty special especially the copper work for the water cooling and the sight glass used for the fuel tank level. The cockpit resembles a steam train as do the front forks and the throttle cables!

Some other really nice bikes were there as well including a really neat 500 Honda and a unique Kawasaki Z900 for those who want to keep biking on four wheels when they can no longer manage two!

The show is on over the next two days and really worth a visit. They show the MGP in the cinema, there are live bands, craft beers, food and a really nice vibe.

13
CB350/400 / 50th Anniverasry CB400/4 Feature in CBG
« on: May 25, 2024, 09:36:55 AM »
This month's CBG has an 11 page feature on the CB400/4 to celebrate its 50th Year.

14
Out & About / Re: OUT AND ABOUT 2024
« on: May 25, 2024, 09:25:39 AM »
Nice photos. I've always like the colour blue and the 750 is a great colour combination. The gold and black of the 500 tops it though👍.

15
CB350/400 / Re: My New Project arrives after a 44 year wait!
« on: May 24, 2024, 09:18:56 AM »
Thanks all for the kind comments. I had a good day in the man cave yesterday, still slow progress with lots of fettling and tweaking but getting there and enjoyed it again.

Roo, the exhaust headers are the originals so double skinned. The chrome was good once the rats urine and poo had been removed (I actually thought it was rust in some places!). It still took a large tub of elbow grease to clean them up but worth it in the end.

Ash, I have attached the wiring route diagrams, these should help you with the cable routing at the headstock (control cable routes as well). I can confirm the silencer is a Burito item and funnily enough it is cheaper to buy them from The Classic Bike Shop than directly from Joe!

Magpie, seriously get yourself a bike lift, it’s a no brainer. It will save your back and your knees. There were two used ones for sale a few months ago in Classic Bike Guide.

Off to the Bike Shed Show later today, I forked out for a press/VIP ticket as it has become so popular now it is crowded at weekends. Some seriously fantastic one-off builds. I need to apply some beard oil and get a flat cap before I go. I’ll take my own jam jar for my beer  :).

Pages: [1] 2 3 ... 173
SimplePortal 2.3.5 © 2008-2012, SimplePortal