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Home > How To > Rebuilding your Carb

richminiturbo.

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2370 Posts
Member #: 719
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Horndean - Near Portsmouth

Hooraaah!

Had another go:



Looks right to me!!

Just going to soak my thumb in some hot water now, ouch*surprised*


turbominivanman

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1105 Posts
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Westbury, Wiltshire

Guys.

Does anyone have any experience with what happens when you take the dashpot (complete with needle etc) off the carb body and apply fuel pressure to the carb ?

Should the rising action of the float and the closing of the needle valve in the base of the carb close off the flow of fuel to the jet holder or will fuel shoot up from the jet ?

It's just that mine does the latter and I'm wondering if my needle valve is not working properly before I go taking the carb off to check.

Also, does anyone have any experience with the Nylon needle valve conversion (as a replacement for the brass needle) ? Is this something that you would include when re-building your carb for example ?

Cheers.

Richard.

Minivanless, but reluctantly happy living with the decision. There'll be another one day.
http://www.youtube.com/profile?user=minimadmotorman#p/u


hario

444 Posts
Member #: 2885
Senior Member

Duno man.

I will be attempting rebuild v.soon using this sweet guide.


Brett

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9502 Posts
Member #: 1023
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Doncaster, South Yorkshire



On 30th Oct, 2008 turbominivanman said:
Guys.

Does anyone have any experience with what happens when you take the dashpot (complete with needle etc) off the carb body and apply fuel pressure to the carb ?

Should the rising action of the float and the closing of the needle valve in the base of the carb close off the flow of fuel to the jet holder or will fuel shoot up from the jet ?

It's just that mine does the latter and I'm wondering if my needle valve is not working properly before I go taking the carb off to check.

Also, does anyone have any experience with the Nylon needle valve conversion (as a replacement for the brass needle) ? Is this something that you would include when re-building your carb for example ?

Cheers.

Richard.


the needle valve should be able to hold hold back the fuel, and with the dashpot and needle out, the fuel should not squirt out the jet, there is a good guide in the Haynes manual about setting the float bowl level, i found it usefull *wink*

Edit: lol just seen when his post was made*surprised*

Edited by Brett on 18th Jan, 2009.

Yes i moved to the darkside *happy*

Instagram @jdm_brett


hario

444 Posts
Member #: 2885
Senior Member

dig dig dig.. lol


turbominivanman

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1105 Posts
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Westbury, Wiltshire

No matter about the date.

Cheers for replying Brett. Confirmed my thoughts. Thanks.

Minivanless, but reluctantly happy living with the decision. There'll be another one day.
http://www.youtube.com/profile?user=minimadmotorman#p/u


Adam_R

603 Posts
Member #: 1938
Post Whore

near Dundee

the seal for the dashpot to carb body. does anybody have a picture of how its located on the body?
so i can get a n/a carb machined to fit it

cheers
Adam


richminiturbo.

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Horndean - Near Portsmouth

Sorry to bring this thread up again but thought I just aswell other than making a new one.

How do you go about setting the float level on a hif44?

I did have the instructions, i'm sure I set it right but want to make sure, but cant find the instructions!!

I know it involved a straight edge acros the top and bending the needle valve contacting tab to alter the float level but cant remember what the height should be, any ideas?

Cheers


richminiturbo.

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Horndean - Near Portsmouth

Not to worry, just found it in my metro haynes.


With the carb invered (upside down), and with the float hodling the needle valve closed, place a straight edge across the centre of the of the float face (from front to back).

The centre section of the float must be between 0.5+1.0mm lower than the straight edge.

Bend the brass tab accordingly to set this gap.


gdowle

47 Posts
Member #: 9534
Member

Toronto, Canada

just used your instructions. Worked a treat, thanks


Turbo This..

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1767 Posts
Member #: 9165
Previously josh4444

Australia, brisbane

i have got some question that some of you might be able to help me with also some pics that may help others
first is this crack in the brass collar/sleeve thing for the choke mechanism going to affect the operation of it?


second the SU exploded diagram in the box/kit shows no seal between parts 37 and 38 so how is flue held in this valve thing? i take it seal 44 is what keeps flue getting out completely





is this port/barb right with a reduce thing in it?


some pics of setting the float


Liam1288

2 Posts
Member #: 10592
Junior Member

How do you mean when replacing the choke spindle seal with the lip inwards?
Is it the tapered end towards the carb?
Also is it meant to just push up to the spindle or actually squeezed inside?
Is the spindle meant to move in and out slightly?


Liam1288

2 Posts
Member #: 10592
Junior Member

Just a pic of each way the seal can go as I'm not sure...


Attachments:


larry1275gt

14 Posts
Member #: 11180
Member

HI, this order to o'ring set its correct?

thks and regards from Chile


On 9th Jun, 2013 Turbo This.. said:

second the SU exploded diagram in the box/kit shows no seal between parts 37 and 38 so how is flue held in this valve thing? i take it seal 44 is what keeps flue getting out completely


larry1275gt

14 Posts
Member #: 11180
Member

nothing?

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