theres a trick to setting it, i need to find out what it is too???? somthing about a 5mm drill bit?
theres a trick to setting it, i need to find out what it is too???? somthing about a 5mm drill bit?
can the pressure of the accel pedal be adjusted??
Blimey and I thought my carb was in need of a clean!
Just reading one of the articles on the carb and it mentions removing the choke flap? is that worthwhile doing then while it's in bits?
I didOriginally Posted by tiff_lee
Blimey and I thought my carb was in need of a clean!
Just reading one of the articles on the carb and it mentions removing the choke flap? is that worthwhile doing then while it's in bits?
treat yourself to nice new throttle return spring to
I totally forgot there is a sand blaster tucked away in the corner on base, had a quick go today on a spare carb and it brought it up like new!
Any pics dude???
I'll get some before, after comparison pics up later this evening.
Ok some pics....
First I did a test on a small area
Then as it was...
and how it looks now
It is still not perfect but as you can see a definite improvement.
anyone shed some light on how this should be set???
What does this spring do??? Is there a recommended setting when screwing back on???
Come on you guys someone must know
Lee that carb looks slicker than your average
See my diagrams attached they should explain what needs adjusting (it has been some time since I have played with a carb) any questions please ask
nice one makes sence now
talking sandblasting what do you guys think of this little extra http://cgi.ebay.co.uk/AIR-SANDBLASTE...3A1|240%3A1318
Adey, sorry I didn't get round to calling you back matebut as per the pictures that James posted, you'd use a 5mm drill-bit & position it inside the venturi as such, so that it holds the throttle plate 5mm open. With the bit still in situ, you then adjust the acc' pump rod nut so that the pump lever is fully pressed in.
When the drill-bit is removed, you should be able to move the throttle (plate) to approx 5mm open, with the acc' pump lever fully depressed, and then be able to move the throttle further so that the plate itself opens fully.
Using a smaller drill-bit to set the gap will cause a quicker/larger squirt of fuel to be present each time you come back on the gas, and using a larger drill-bit will cause the opposite to happen; eg, if you find your afr's are way too rich when coming back on throttle (after a gear change, say), use a larger diameter drill-bit to 'lengthen' the time the acc' pump jet is fuelling.
i need to have a look at my carb and see what jet i have,when i give
it lots of throttle an rev it to 6 and a half....it flat spots..like i have emptied
all the fuel and it takes a second or so to regain itself if you understand
me???
nice one cheers martski, think my problem lies elsewhere now, as i tried to adjust the idle mixture and even with the needle all the way it was still slightly lean on the mot testers machine major air leak somewhere. got a carb overhaul kit on the way, will rebuild it all and go from there.
Just found out that the shop 2 doors down from me has a sand blaster and kindly let me use it so i had a quick go on a spare carb......It's defo a good look
Guess you won't be needing my help anymore thenJust found out that the shop 2 doors down from me has a sand blaster and kindly let me use it so i had a quick go on a spare carb......It's defo a good look
On another note was stripping two carbs down last night and there was a slight difference on the rear of them, one was blanked off where as the other appeared to have a brass screw in it just wondered why this was?
That screw is used for holding the aux venturi in situ.
Oh right, so how is it held on the other one?
The screw (and spring) pushes against the venturi so it's held in place by force as such (against the emulsion tube outlet hole) on the opposite side.
Nice one thanks for the info
NP
mini pic hijack....
dremel and wire wheel to clean up a carb FTW
hey does anyone know if the carb is always a bit tight after replacing the green seals?
thats a polished carb alright!!
Mine was a little
Now thats the shoot i'm talking about!!!! Wanna do mine??mini pic hijack....
dremel and wire wheel to clean up a carb FTW
Been having a few of the same problems with re-furbing my carb, some of the gaskets had holes in them so replaced all them.
Started the car up fine and ran perfect, but went to start it up a couple of hours later and it sounded rough and kept cutting out.
The mixture screw does has soon play in it
And there was me thinking that the carb would look nice, clean and shiny with a little clean up when they look that dull when new/ish anyway
I wouldn't mind one of these BNIBAnd there was me thinking that the carb would look nice, clean and shiny with a little clean up when they look that dull when new/ish anyway
I wish I had that much spare time, top job looks good if your into that sort of thingmini pic hijack....
dremel and wire wheel to clean up a carb FTW
probably spent an hour on it tops..
sorry mart im blind. am i doing this correct? also does the white little plastic thing that the spring presses up against sit tightly in the acc pump part?
cheers
Hi Tom,
Those pic's are a bit hard to make out on my display, but in short, the (5mm) drill-bit should be sitting in-between the edge of the throttle plate & venturi wall. You then adjust the lock-nut on the pump rod/lever so that the lever (and thus the diaphragm) is fully pushed in @ that 5mm throttle plate gap.
You'll then find that when you move the throttle further/more open, the accelerator pump lever itself won't move (in) any more, yet the rod will 'push through' as such - That's perfectly normal and exactly what you're looking for.
okie dokie, i will have to do that then. ive just put the carb on how i done it. and ive had fuel come out of the acc pump....
also is the white plastic part with the spring suppoused to be stuck inside the acc pump part? as mine isnt.
Last edited by tom t; 29-03-2009 at 17:50.
Thinking of spraying one of my carbs what would be the best to use??
I'm going to have a go at spraying a carb too.
I got some 'very high temperature' paint from halfords. They do a few flavors in spray and pot type
I thought about using radiator primer too. I used it on my charge pipe and its been gravy so far.
You not got a dremel to give it a polish? I gave it a blast on the polished at work and although the wheel is too big for the carb to get in the awkward bits what it did touch came up instantly!
Also got my re-zinc'd linkages and bits back today
Lets see some pics then lolYou not got a dremel to give it a polish? I gave it a blast on the polished at work and although the wheel is too big for the carb to get in the awkward bits what it did touch came up instantly!
Also got my re-zinc'd linkages and bits back today
dont suppouse any body has any ideas as to why i have fuel coming out the side of the acc pump? or any ideas as to what i could have done wrong to make this happen? cheers
Diaphragm split, or you've cracked the pump cover by over-tightening the screws.
here you go mate,i never used the stuff but looks ok,this sites good for
odds an sods be babber...
http://auto.frost.co.uk/search?w=carb+renew
Cheers mucker
i will have to take that part of the carb apart on tuesday and have a look, i cant see how it can be the diaphragm as its new be a bugger if it was. as i suppouse you can only get them in the kit?
could it be possible to get two diaphragms in the kit muddled up? and put them in the wrong place? (or maybe theres no chance as they wudnt fit)
dont think its the pump cover though as its coming out of the middle where the bracket goes in...
thanks
Did you refit the spring that sits behind the diaphragm?
Thinking about it, that wouldn't make a difference as the diaphragm would still 'seal' the fuel in as such.
Either the diaphragm isn't sitting correctly, it's split, or you've fitted the wrong type, but I can't see that as none of the other diaphragms in the kit look anything like the acc' pump item.
ok cheers will have to investigat tuesday as im on hol at the mo. pretty sure its the right diaphgram. it looks like it fits the hole fine from the outside too.
any idea if i could get one seperatley if it is split? cheers thanks for youre help much appreciated.
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