Author Topic: Carburettor Insulators  (Read 2783 times)

Offline Deano400

  • SOHC Expert
  • Posts: 480
    • View Profile
Re: Carburettor Insulators
« Reply #45 on: October 25, 2018, 09:05:18 PM »
Nope. Still waiting, but seems an odd one as there is no obvious answer.

Offline Athame57

  • SOHC Master
  • Posts: 1122
    • View Profile
    • SeaWitch Artist
Re: Carburettor Insulators
« Reply #46 on: October 25, 2018, 09:23:58 PM »
I reckon some slitty eyed git on the assembly line damaged the mould and then filed these little grooves in to cover it up and hope people will think that's the way it's meant to be! 
I brake for animals!
1978 CB400F2

Offline Deano400

  • SOHC Expert
  • Posts: 480
    • View Profile
Re: Carburettor Insulators
« Reply #47 on: October 26, 2018, 11:18:29 AM »
I've had a look at the insulators and carbs this morning.
The head inlets are all in line, the insulators are all in line and the carbs are all in line. So the insulators are the same length and not angled.
However measuring the head, the centres between the inlets are different. Between 1 and 2 the centres are approx. 65mm, the same for 3 and 4. The centres between 2 and 3 are approx. 70mm, this is because the cam chain runs between 3 and 4. The centres on the carbs are all the same, approx 67mm.
So the insulators have to be in the right place and the right way up because they have a dogleg. Easy to see on number 2 and 3 when you look for it.
Installed with 1, 2, 3 and 4 at the top (left to right) the carbs line up with the insulators.
Installed incorrectly would definitely make it more difficult to mount the carbs. I guess also would greatly increase the risk of air leakage and poor running.

Typo, the cam chain runs between 2 and 3.
« Last Edit: October 26, 2018, 01:00:58 PM by Deano400 »

Offline Deano400

  • SOHC Expert
  • Posts: 480
    • View Profile
Re: Carburettor Insulators
« Reply #48 on: October 26, 2018, 11:19:32 AM »
Still don't get the divots though. :(

Offline Nurse Julie

  • 1977 CB550/4 Mongrel Brat. 1974 UK 500/4 K1. Honda CD250u.
  • Grogu
  • *
  • Posts: 8205
    • View Profile
Re: Carburettor Insulators
« Reply #49 on: October 26, 2018, 11:59:09 AM »
We'll done John. I will re arrange mine to fit in their correct places. I had no more trouble than usual fitting my carbs back on, they are always a bit of a bugger so no difference noticed when I did it although I had fitted the insulators in the incorrect places.
LINK TO MY EBAY PAGE. As many of you know already, I give 10% discount and do post at cost to forum members if you PM me direct.
https://www.ebay.co.uk/sch/julies9731/m.html?item=165142672569&rt=nc&_trksid=p2047675.m3561.l2562

LINK TO MY CB400/4 ENGINE STRIP / ASSESSMENT AND REBUILD...NOW COMPLETE
http://www.sohc.co.uk/index.php/topic,14049.msg112691/topicseen.html#new

Offline Nurse Julie

  • 1977 CB550/4 Mongrel Brat. 1974 UK 500/4 K1. Honda CD250u.
  • Grogu
  • *
  • Posts: 8205
    • View Profile
Re: Carburettor Insulators
« Reply #50 on: October 26, 2018, 06:47:04 PM »
Haha Ken, it doesn't really work like that in this house. I have to learn by my mistakes, the only advice Graham will give me is after I have cocked up and his usual statement is 'if you did it right in the first place, you wouldn't have to be doing it again'. Most helpful.....NOT 😀😀
LINK TO MY EBAY PAGE. As many of you know already, I give 10% discount and do post at cost to forum members if you PM me direct.
https://www.ebay.co.uk/sch/julies9731/m.html?item=165142672569&rt=nc&_trksid=p2047675.m3561.l2562

LINK TO MY CB400/4 ENGINE STRIP / ASSESSMENT AND REBUILD...NOW COMPLETE
http://www.sohc.co.uk/index.php/topic,14049.msg112691/topicseen.html#new

Offline Nurse Julie

  • 1977 CB550/4 Mongrel Brat. 1974 UK 500/4 K1. Honda CD250u.
  • Grogu
  • *
  • Posts: 8205
    • View Profile
Re: Carburettor Insulators
« Reply #51 on: October 27, 2018, 08:41:02 AM »
In that case Julie wash his pants with a load of HIS £20 and £50 notes in them, see if he's willing to let you learn by your mistakes in that case  ;D ;D
😁😁😁😁😁 I will report back Ken.
LINK TO MY EBAY PAGE. As many of you know already, I give 10% discount and do post at cost to forum members if you PM me direct.
https://www.ebay.co.uk/sch/julies9731/m.html?item=165142672569&rt=nc&_trksid=p2047675.m3561.l2562

LINK TO MY CB400/4 ENGINE STRIP / ASSESSMENT AND REBUILD...NOW COMPLETE
http://www.sohc.co.uk/index.php/topic,14049.msg112691/topicseen.html#new

Offline allankelly1

  • SOHC Expert
  • Posts: 464
    • View Profile
Re: Carburettor Insulators
« Reply #52 on: August 13, 2020, 06:36:45 PM »



Sent from my iPhone using Tapatalk

Offline Bryanj

  • Grogu
  • *
  • Posts: 10692
    • View Profile
Re: Carburettor Insulators
« Reply #53 on: August 13, 2020, 08:10:13 PM »
Wghats a 20 or 50 £ note?

 

SimplePortal 2.3.5 © 2008-2012, SimplePortal