Resend my activation email : Register : Log in 
BCF: Bike Chat Forums


Float bowl hard to shift - tips?

Reply to topic
Bike Chat Forums Index -> The Workshop
View previous topic : View next topic  
Author Message

A100man
Crazy Courier



Joined: 19 Aug 2013
Karma :

PostPosted: 10:31 - 10 Jul 2018    Post subject: Float bowl hard to shift - tips? Reply with quote

Trying to clean the carbs on a long-standing GT250A.. float bowl screws came out OK and also the drain screw BUT the bowls themselves are stuck fast. Been tapping them (cautiously) with the butt end of a hammer but nowt. was thinking of trying to lever off by inserting something in the threaded drain hole but that also gives me the jitters in case I crack something.

Any tips out there?

Ta
____________________
Now: A100, XJ598, FZ750

Then: Fizz, RS200, KL250, XJ550, Laverda Alpina, XJ600, FZS600
 Back to top
View user's profile Send private message You must be logged in to rate posts

chris-red
Have you considered a TDM?



Joined: 21 Sep 2005
Karma :

PostPosted: 10:46 - 10 Jul 2018    Post subject: Reply with quote

Crack it with the metal end of the hammer, the sharp tap with that would be more effective than the duller one with wooden end.

Failing that I'd put the bowl into a vice with wooden jaws and wiggle.
____________________
Well, you know what they say. If you want to save the world, you have to push a few old ladies down the stairs.
Skudd:- Perhaps she just thinks you are a window licker and is being nice just in case she becomes another Jill Dando.
WANTED:- Fujinon (Fuji) M42 (Screw on) lenses, let me know if you have anything.
 Back to top
View user's profile Send private message You must be logged in to rate posts

Teflon-Mike
tl;dr



Joined: 01 Jun 2010
Karma :

PostPosted: 11:22 - 10 Jul 2018    Post subject: Reply with quote

Double check the float-bowl attachment before anything.

The Amal on the Cota, has the usual four-screws in the corners of the float-bowl, but its also held on by a central brass screw through the bottom of the bowl around the main-jet; I suspect many older carbs may have similar arrangements.

Then I would be loath to apply gross persuasion to a float-bowl, especially an old one; often high-zink monkey metal, risk of cracking it would be high; and replacement parts likely unobtanium.....

I'd try and crack the gasket seal by twisting as a start; then pondering thermal shock... and considering the prudence of putting a blow-lamp on something that contained petrol.... or low melting point zink alloy! and wondering about whether a hair-dryer might be a little more 'gentle', then popping in the fridge and dropping into a bucket of kettle-hot.

THEN.. after lots of faff... ~I would probably resort... tentatively to some gross force.....

Or like that stubborn jar in the kitchen... asking ham-fisted Snowie to have a go....
____________________
My Webby'Tef's-tQ, loads of stuff about my bikes, my Land-Rovers, and the stuff I do with them!
Current Bikes:'Honda VF1000F' ;'CB750F2N' ;'CB125TD ( 6 3 of em!)'; 'Montesa Cota 248'. Learner FAQ's:= 'U want to Ride a Motorbike! Where Do U start?'
 Back to top
View user's profile Send private message Visit poster's website You must be logged in to rate posts

MCN
World Chat Champion



Joined: 22 Jul 2015
Karma :

PostPosted: 16:02 - 10 Jul 2018    Post subject: Reply with quote

The rubber gasket will have vulcanised the bowl to the carb body. Violence is golden.

But as Tefers eloquently suggests, thermal attack.

Pour a kettle of hot water over them. It may soften the rubber and allow you to move them a bit.

I wouldn't hit them anymore. There no control of the force you put on them. Breaking will ensue. And you'll be on here asking some advice to weld pot-metal 😂
The secret is patience and time.
____________________
Disclaimer: The comments above may be predicted text and not necessarily the opinion of MCN.
 Back to top
View user's profile Send private message Send e-mail You must be logged in to rate posts

A100man
Crazy Courier



Joined: 19 Aug 2013
Karma :

PostPosted: 16:45 - 10 Jul 2018    Post subject: Reply with quote

Thanks chaps. will try a combinational approach I think..

Kettle of water followed by clamping into my work-mate (err Black and Decker kind) and a wiggle..

UPDATE - That did the trick - thanks for all the suggestions.
____________________
Now: A100, XJ598, FZ750

Then: Fizz, RS200, KL250, XJ550, Laverda Alpina, XJ600, FZS600
 Back to top
View user's profile Send private message You must be logged in to rate posts

A100man
Crazy Courier



Joined: 19 Aug 2013
Karma :

PostPosted: 10:08 - 11 Jul 2018    Post subject: Uuurghh.. Reply with quote

About 1/8" of sludge in the bottom of the bowl on this one - oh goody.
Not seen that float arrangement before either (two independent floats sliding on pillars Confused) any advantages/disadvantages I wonder..


https://lh3.googleusercontent.com/xP5LXa9aacCgKjVjSMMRdWUAG3Je87dgdwDqDC73zjcP_xLAKRQLkm_3xjS4s_at0tinEvPGIwr9cQMX34zB1DKoMVkP5KrPkLbX_Ed3keduMhyLmrecOfei29WnJE45VN4MSB2XO1tDdw2hlBWX7Fy0Bf8s4XUTHaNqQXkL3oYfVnAboD-pTj89TlVgLD94icCxlvd4sID2tUOTvc6JkgEzmnl1gcazokIujkijbssyBANvqddASAT3sPuXsQl5hN4EpPPpG-x39oicEj2KRq0S17UAZyBgTragVpkcWUeE1y8CKs1q-BcBUuJDY0Kyj2a0muYeY2qwsrYvUjXxCEM6Xqo59LnaApu_zWfS_PDnqfvaV7BvfGIogqQ5s6wl4jpnUJdpCaQ20rK74T7RBPvmjcHpXzh1iN7NJL6rnwiLNiTAhUdVi56dkc4S28Hzoq0wpB2NMB2TvfRUgWuOwsLbk_qyKSR9HUfMJWB608MKKkLuNS9j5a96aj4Tf1zphtbUtYd5KjksJWPYvM32OtX6Fd_2ohxpddUi4tvF4dvW08juzxmqAjlTiPaLSjU14_TE_05X5ab1u2p1EHjxSpII7RokQ9ZgTtCTjTU=w731-h974-no
____________________
Now: A100, XJ598, FZ750

Then: Fizz, RS200, KL250, XJ550, Laverda Alpina, XJ600, FZS600
 Back to top
View user's profile Send private message You must be logged in to rate posts

Riejufixing
Spanner Monkey



Joined: 24 Jun 2018
Karma :

PostPosted: 21:34 - 11 Jul 2018    Post subject: Reply with quote

I looked at your carbeurettor bowl pic this morning. Eurgh! Now I come to look again, and I can't see it (I get a monochrome "no entry" sign).
 Back to top
View user's profile Send private message You must be logged in to rate posts

A100man
Crazy Courier



Joined: 19 Aug 2013
Karma :

PostPosted: 12:57 - 12 Jul 2018    Post subject: Reply with quote

Riejufixing wrote:
I looked at your carbeurettor bowl pic this morning. Eurgh! Now I come to look again, and I can't see it (I get a monochrome "no entry" sign).


That's happened before on a different forum - some google photos sharing nonsense I think - still visible to me so thanks for letting me know..
____________________
Now: A100, XJ598, FZ750

Then: Fizz, RS200, KL250, XJ550, Laverda Alpina, XJ600, FZS600
 Back to top
View user's profile Send private message You must be logged in to rate posts
Display posts from previous:   



Other Hand Tools

9.95 - Buy It Now

Other Hand Tools

3.95 - Buy It Now

Other Hand Tools

2 - Buy It Now

Other Hand Tools

10 - 0 Bids

Other Hand Tools

19.29 - Buy It Now

Other DIY Tools & Workshop Equipment

30 - Buy It Now
Post new topic   Reply to topic    Bike Chat Forums Index -> The Workshop All times are GMT + 1 Hour
Page 1 of 1

 
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You cannot download files in this forum

Read the Terms of Use! - Powered by phpBB © phpBB Group
 

Debug Mode: ON - Server: discovery (www) - Page Generation Time: 1.35 Sec - Server Load: 1.16 - MySQL Queries: 16 - CDN Objects: 35 - Page Size: 61.31 Kb