Club 80-90 Forums

How do I reduce these levels.

with a gas anylizer

if it don't tick over when cold that's a whole new thread

My readings from last Saturday where CO 6.123% and HC 187PPM. FAIL

I think it was idling a bit fast which can apparently raise the CO but I'm guessing it's still running a bit rich? (2lt Aircooled twin carbs)

Will go back in next week sometime after I've sorted the brakes, but what do I need to adjust to bring the CO back to within acceptable limits?

j4jon wrote:My readings from last Saturday where CO 6.123% and HC 187PPM. FAIL

I think it was idling a bit fast which can apparently raise the CO but I'm guessing it's still running a bit rich? (2lt Aircooled twin carbs)

Will go back in next week sometime after I've sorted the brakes, but what do I need to adjust to bring the CO back to within acceptable limits?

you can't adjust anything without a gas analyser

j4jon wrote:My readings from last Saturday where CO 6.123% and HC 187PPM. FAIL

I think it was idling a bit fast which can apparently raise the CO but I'm guessing it's still running a bit rich? (2lt Aircooled twin carbs)

Will go back in next week sometime after I've sorted the brakes, but what do I need to adjust to bring the CO back to within acceptable limits?

This link is kinda helpful but misses the pictures

http://www.type2.com/library/fuel/dualsol.htm

ninja.turtle007 wrote:I have new plugs, filters etc. How do I reduce these levels. It doesn't tick over when cold and does smell a little.

Does it need to be sorted before you come to mine?

kevtherev wrote:

j4jon wrote:My readings from last Saturday where CO 6.123% and HC 187PPM. FAIL

I think it was idling a bit fast which can apparently raise the CO but I'm guessing it's still running a bit rich? (2lt Aircooled twin carbs)

Will go back in next week sometime after I've sorted the brakes, but what do I need to adjust to bring the CO back to within acceptable limits?

you can't adjust anything without a gas analyser

You could probably get it through mot without, but would need setting up properly asap.

j4jon wrote:My readings from last Saturday where CO 6.123% and HC 187PPM. FAIL

I think it was idling a bit fast which can apparently raise the CO but I'm guessing it's still running a bit rich? (2lt Aircooled twin carbs)

Will go back in next week sometime after I've sorted the brakes, but what do I need to adjust to bring the CO back to within acceptable limits?

Well the carbs need setting up, which really you can't do at home unless you have a gas analyser. Or try and turn the CO screws on both carbs all the way in then turn them 4 full turns out each, that should get you somewhere close. Your tick over will more than likely want adjusting now too, big screw on top of left carb. Talk to your tester really nice and if he is a nice bloke (like me) he will let you or do it for you and adjust to get the CO just right. All the above is useless if the engine is not running right for other reasons like air leaks, blocked air filter and so on....hope it makes sense
IAN

mine was co2 1.36 and hc 143,pass I guess that is pretty good?

ninja.turtle007 wrote:I have new plugs, filters etc. How do I reduce these levels. It doesn't tick over when cold and does smell a little.

Have you got a Haynes manual? If not get one, it tells you all the info in there and will guide you through.. Ideally you need a gas analyzer, but you could make a small adjustment to get the co down enough to pass an MOT.. then you have more time to get it sorted properly..

BUT.. as with any engne it needs to be in good nick, properly serviced and crucially, well set up.. if you have running issues you are not going to get anywhere without curing the issues... and they can be numerous..

Engine code?? are you sure its a DH??? does it have fuel injection? is it from the US?? (badged as Vanagon) or maybe its Swiss?

scottbott wrote:mine was co2 1.36 and hc 143,pass I guess that is pretty good?

fullsunian wrote: Well the carbs need setting up, which really you can't do at home unless you have a gas analyser. Or try and turn the CO screws on both carbs all the way in then turn them 4 full turns out each, that should get you somewhere close. Your tick over will more than likely want adjusting now too, big screw on top of left carb. Talk to your tester really nice and if he is a nice bloke (like me) he will let you or do it for you and adjust to get the CO just right. All the above is useless if the engine is not running right for other reasons like air leaks, blocked air filter and so on....hope it makes sense
IAN

My MOT station is helpful and has already agreed to help me adjust them if I go down a bit early for the retest. I'm really interested in getting it through the MOT then getting it setup properly slow time. Thanks for the advice though i'll print this out and go armed with the Haynes manual.

toomanytoys wrote:

ninja.turtle007 wrote:I have new plugs, filters etc. How do I reduce these levels. It doesn't tick over when cold and does smell a little.

Have you got a Haynes manual? If not get one, it tells you all the info in there and will guide you through.. Ideally you need a gas analyzer, but you could make a small adjustment to get the co down enough to pass an MOT.. then you have more time to get it sorted properly..

BUT.. as with any engne it needs to be in good nick, properly serviced and crucially, well set up.. if you have running issues you are not going to get anywhere without curing the issues... and they can be numerous..

Engine code?? are you sure its a DH??? does it have fuel injection? is it from the US?? (badged as Vanagon) or maybe its Swiss?

It is a left hooker thinking about it, could be fi

Cheers Guys.

Damien. Doesn't have to be done before it goes to yours but planning some big trips this Easter/summer. It has been like this since I've had, but want to make sure it running as best as possible. Are you able to set it up with a gas analyser?

Toomanytoys. I was told it is a DH as German import and fuel injected. I have just Haynes manual but after a flick through does not cover DH. Would like to be able to do it myself but if it needs to go to a pro then so be it.

Thanks for the advice and sorry for the thread hi-jack.

http://www.brick-yard.co.uk/VehicleSpec ... ustgas.htm" onclick="window.open(this.href);return false;

that makes a lot of sence, clear, simple and well worded.

neil