Recent Posts

Pages: 1 [2] 3 4 ... 10
11
SOHC Singles & Twins / Re: First start up
« Last post by Laverda Dave 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.
12
SOHC Singles & Twins / Re: First start up
« Last post by Craizeehair on Today at 04:15:16 PM »
Well I convinced myself that I wasn’t getting any oil to the top end. I tried with the white paper for a couple of minutes but didn’t get any splashes. I’ve whipped the rocker cover off and I did have some oil up there.

As you can see the right hand oil bath has oil covering the bottom all over, the right hand bath has some oil but not as much. There are signs of oil on the tensioner bolt head and the valves but to be honest, I was expecting more, there is oil in the centrifugal filter as well and the rockers have a layer of oil on them.

The bike has probably run for around 3-4 minutes or so I guess, would this be about normal for a short start up after a rebuild?

Is the fact that there is some oil up there a good enough sign to put it back together and run it until winter?

I’m getting myself in a bit of a tizz as I know how weak these engines are regarding the oil delivery and camshaft and journals.

Any opinions would be welcome.









13
CB350/400 / Transmission output shaft bearing removal
« Last post by Dolomite_ on Today at 04:13:54 PM »
More bearing headache. I managed to get one of the 5205hs bearings off easily but the other one has a spacer type thing that closes of the hole where the output sprocket it. because its been exposed and dirty and wont budge. I cant get my bearing puller behind the bearing and I don't want to risk trying to pull the bearing and spacer off by the gear sprocket. Has any had any luck removing it?

14
CB500/550 / Re: CB500K2 carb bit
« Last post by McCabe-Thiele (Ted) on Today at 03:14:41 PM »
It would be good if someone makes the two bushes for the main carb spindle.
15
CB500/550 / Re: CB500K2 carb bit
« Last post by AshimotoK0 on Today at 03:13:02 PM »
Quote from: Laverda Dave 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  :)

Not sure  Dave ...people often ask but don't end up buying.

When I got that out I found a whole bunch of 400 carbs stuff and set of yellow pass plated parts so I think I will put myself together another spiffing set of spare 400 carbs.
16
CB500/550 / Re: CB500K2 carb bit
« Last post by Laverda Dave 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  :)
17
CB500/550 / Re: CB500K2 carb bit
« Last post by Laverda Dave 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!
18
CB500/550 / Re: CB500K2 carb bit
« Last post by AshimotoK0 on Today at 02:03:09 PM »
Looking at the part with my camera microscope app ... I think this is what he means ..in which case the bushes are OK

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

19
Project Board / Re: Doms CB550F1 project
« Last post by Laverdaroo on Today at 01:52:10 PM »
Well done Dom, nice to hear some progress.
Good to fettle unexpected problems, it’s why we do it. If you ever do another just think of the confidence and knowledge you’ve accrued

Very satisfying, well done mate


Sent from my iPhone using Tapatalk
20
Project Board / Re: Doms CB550F1 project
« Last post by Johnny4428 on Today at 01:30:43 PM »
Great Dom there on the bracketery! Nice to chase the Gremlins too.
Pages: 1 [2] 3 4 ... 10
SimplePortal 2.3.5 © 2008-2012, SimplePortal