38DGAS carb rebuild kit

[hallsie]

Quite simple really.

Can anyone tell me what gasket set I need to rebuild the standard carb, and is the float needle valve the 250 size?

Shall I change the jets too?

Thanks

Stu

[Cerberus90]

You should be able to clean the jets up with something like meths, if they even need it, not really much point changing them IMO.

You should also be able to find out what the needle valve is by taking it out and having a look, should say on it IIRC.

[bluezeeland]

Hi Stu,

Taken your on PH the back-ops have gone well ?

Burton's do the gasket set (including 250 needle valve)(at £20....)

I myself do think you should change the jets, after all you're forcing a liquid through them....... (and they are about 2.5/each, allthough you need 7, including the emulsion tube)
I sofar increased the idles to 50 or 55 (i think, not sure) but mains and auxes can be increased as well (you do need a KN type filter for this)
There is a number of good articles on this, bouncing about on the net, google it

grtz

Frank

[Cerberus90]

I suppose the jets will be cheaper for a DGAS, I'm thinking about the twin dellortos we've got which can be £100 for a full set of jets.


I really don't think you'd need to change the jets though, unless the carb has been sat outside for the last 5 years.

I'd strip the carb and see what it looks like before buying jets.

[bluezeeland]

Adrian,

Fully agree on the gasket set (and power and needle valves)
But don't you think after time, having petrol forced throu the jets that they 'wear', read become wider, if only little bits ? Last year when i rebuild the carb i changed all (idles/mains/auxes and emulsion tube) and thought the engine ran better. After our little boud re the ignition pre-timing/vacuum actions i've changed the idles for 1 step larger and gotten even better response from the engine (i.e. revving better/more free/giving better power (i not saying this is all down to the jets alone, its graced by the whole tune up)

best regards
Frank

[Geoff38]

I wouldn't unscrew the choke plates....the screws are so tight and tiny you have to put a lot of pressure on them to stop the screwdriver slipping. I ended up bending the shaft cos it is so soft with the slot cut thru the middle of it and I couldn't easily find replacement parts.
My Dgas had the auto choke bit all crudded up so I have brought a manual choke carb to replace it.

Cheers
Geoff

[bluezeeland]

Mmhm, sometimes i think to myself "if in doubt, replace".... maybe i shouldn't. Then again the full set is something like £20ish (6+emulsion tubes) ?