| ausmini https://www.ausmini.com/forums/ |
|
| Tuning Problem - need help https://www.ausmini.com/forums/viewtopic.php?f=2&t=30780 |
Page 1 of 1 |
| Author: | matt850 [ Fri Apr 20, 2007 11:31 am ] |
| Post subject: | Tuning Problem - need help |
I cant seem to get rid of a "surging" problem that I have when cruising. Not so noticable in suburban driving but when on the hwy it can sometimes be really bad. I have put a straight through rubber hose in place of the non existant vacuum advance. That helped a lot but it is still there. Is this a fuel problem, I have mucked out the bowls, or is this a firing problem. Do you think one of those dizzies in the mini experience would fix it or is it time for me to put a kit through the twin 1.25's, which are tuned okay by the way. Any ideas greatfully accepted. Cheers Matt |
|
| Author: | Mick [ Fri Apr 20, 2007 12:05 pm ] |
| Post subject: | |
Could be your fuel pump isn't keeping up with the demand, particularly at high loads over long bursts. No problems about the streets or accelrating from lights? How's your fuel filter? |
|
| Author: | Mike_Byron [ Fri Apr 20, 2007 12:07 pm ] |
| Post subject: | |
I would put my money on a fuel supply problem. As always, eliminate the easy stuff first before chasing unlikely things. 1. check your fuel filter (or simply change it for a new one) 2. Make sure there is not a fuel leak in the line somewhere. 3. Make sure your fuel pump (if electric) does not need the points cleaned, relplaced or adjusted) 4. Make sure the fuel pump (if manual) has not split a diaphram and is not delivering properly. 5. Check the float levels on the fuel bowls since you have been in there recently. Then Check the distributor points and the timing Its sure to be something above. |
|
| Author: | matt850 [ Fri Apr 20, 2007 1:47 pm ] |
| Post subject: | |
Cheers, thanks. will look at all of that over the weekend. |
|
| Author: | Mike_Byron [ Fri Apr 20, 2007 2:39 pm ] |
| Post subject: | |
If all else fails Get some carby cleaner and spray that around the manifold, where the carbies bolt on and near the spindles (not at the air filters though). if the revs rise - then its sucking air somewhere. |
|
| Author: | matt850 [ Sat Apr 21, 2007 3:16 pm ] |
| Post subject: | |
Mick, No real issues around the streets and certainly not noticable when accelerating. |
|
| Page 1 of 1 | All times are UTC + 10 hours |
| Powered by phpBB® Forum Software © phpBB Group http://www.phpbb.com/ |
|