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Messages - Fenderfreak
16
« on: January 13, 2019, 07:27:21 PM »
Thanks for all the feedback. Ended up getting a set of Morgan Carbtune 👍
17
« on: January 13, 2019, 04:10:12 PM »
Can anyone recommend a set of valve seat cutters suitable for a Cb250k/350k head?
Ta
18
« on: December 07, 2018, 12:31:23 AM »
Thanks Gents was considering the Sealey set 👍
19
« on: December 06, 2018, 08:23:39 PM »
Anyone recommend a reasonable reliable set of carb synch gauges?
Cheers
20
« on: November 29, 2018, 06:56:34 PM »
Hi Ash, makes perfect sense, didn’t realise the thicker part of the studs were moulded rubber. The moulding seems to be shown on the K3 as well, so may get a couple of replacements as they must be there for a purpose, perhaps to stop vibration
I’ve bought an new pump off of Frank in Germany as old one is badly scored. I was concerned about the wear to the external portion of the pump body as to what caused it. You can just see it on the outside of the pump in the photo.
Thanks again for your help 👍
21
« on: November 29, 2018, 05:24:56 PM »
Looking for a bit of advice on the oil pump for my 250k3 and cylinder studs
If you have a look at the attached photo you can see that the edge of the pump body has been worn away! Can not find any reason for this, any ideas? Also the piston and bore measure just over 19mm where as the manual states 16mm, is this the right pump?
Two of the cylinder studs in the photo are devoid of the small thicker part as shown in the parts list.
Is this correct? Was there a later mod or has the previous owner fitted the incorrect studs?
Thanks in anticipation.
22
« on: November 02, 2018, 11:09:09 PM »
Bit of an update, rolling chassis now complete, see picture, just the engine to do!
Bit of a disaster area once opened up, the cam chains at some point has given up the ghost and caused a bit of damage . Found lots of debris in the bottom and in the filter. The filter was totally clogged with aluminium fillings which appears to have come from the crank support being worn away by the cam chain, Fun this restoration lark 😀 [ Guests cannot view attachments ]
23
« on: November 01, 2018, 08:13:37 AM »
Thanks Ash,
I have the data from the manual which made me realise the cam was different, thought mine had grown 😉
Definitely have the later setup, the lobes look ok no sign of major wear or ridges , just make out the surface in the photos,so will probably leave those as they are and just get the mounting end journals reground to the specs in the manual.
If manage to find what the lobe specs for the later cam are I’ll let you know.
Thanks again cheers
24
« on: October 30, 2018, 11:14:27 AM »
Ok sorry on going saga but need specifics as going to send cam off to be plated and reground.
It would appear, according to a couple of FB groups I have a later cam🤔 Hiwever they can not tell me the STD values for the lobes or end journals of the shaft.
Are they right?
All my references just seem to give the values for the cam with 36mm lobes, anyone know what the correct values are for the larger cam?
Have attached photos of the numbers on the cam to see if it helps.
Cheers John
25
« on: October 26, 2018, 04:19:02 PM »
Thanks for the info Ash, contacted Frank and bought several bits 👍
26
« on: October 19, 2018, 07:36:12 PM »
Cheers Ash, will have a look 👍
I’ve just knocked one of the sleeves out! Looks like a piece of old copper pipe has been used!
27
« on: October 19, 2018, 04:24:47 PM »
Forgot to add can the covers be fitted with roller bearing?
28
« on: October 19, 2018, 04:18:31 PM »
Hi Ash, yep rockers are 312 and have little or no wear.
Cam shaft lift is 6.54 and 6.58. The lobes and light scoring on the journals but appear more cosmetic than deep scoring as can not feel with
fingernail
Measured both covers 3 times on x and y axis and used largest measurement when calculating clearance between journal nd cover bore ID.
L =0.43 R=0.48
The covers look to have been sleeved at some point, and are quite scored! One of the feed holes was blocked.
Looks like these will both have to be replaced 🙁
Will send hi res photos, cheers
29
« on: October 19, 2018, 03:01:57 PM »
Continuing saga of the engine strip down.
1. Cam shaft lobes measure 39.72, standard value in manual says 36.86, wrong cam shaft? Racing cam?
2. Head covers both internal bores measure 21.6, standard value 22., service limit change if more than 20, according to workshop manual! Am I reading this wrong!🤔
Answers on a post card please 😉
30
« on: October 15, 2018, 08:36:30 AM »
Great stuff, all info there thanks.
Will send photo later.
Thanks gents
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