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strange engine issue https://www.ausmini.com/forums/viewtopic.php?f=2&t=82692 |
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Author: | Kennomini [ Mon Sep 09, 2013 7:57 pm ] |
Post subject: | strange engine issue |
To start with I have a 1990 Rover Cooper, 1275cc, A+, Hif4 1 3/4" carby engine. So for a fair while (months and months) my accelrator has been sticky and "firm" to press down and my engine starts to brake down/splutter and loose power between 4500 5000rpm, definatly no more than 5k. I assumed the issue was simply poor/out of tune due to the fact I havn't tuned the engine for a couple of years. However I gave the engine a de-grease and a pressure wash on the weekend, just simply sprayed the engine and carby with the pressure washer. After that I can now confinently take the car up to 6000rpm without and spluttering or carrying on from the engine and the acclerator has also become much smoother again. So can anyone think why a degrease and a pressure wash could have caused such an improvment ![]() |
Author: | FNQ [ Mon Sep 09, 2013 8:08 pm ] |
Post subject: | Re: strange engine issue |
accelerator cable? sticky butterfly/ we normally get really peeved when the thing runs poorly for no good explanation -- it is karma - this is running better for no good explanation |
Author: | Morri68 [ Mon Sep 09, 2013 8:12 pm ] |
Post subject: | Re: strange engine issue |
It maybe the butterfly sticking and not letting enough fuel though |
Author: | drmini in aust [ Mon Sep 09, 2013 9:58 pm ] |
Post subject: | Re: strange engine issue |
Probably road crud on the dizzy cap and coil was causing crossfiring. Now it's clean there, all good! |
Author: | Kennomini [ Tue Sep 10, 2013 6:27 pm ] |
Post subject: | Re: strange engine issue |
drmini in aust wrote: Probably road crud on the dizzy cap and coil was causing crossfiring. Now it's clean there, all good! Even though it's A+ elc dizzy? |
Author: | drmini in aust [ Tue Sep 10, 2013 7:08 pm ] |
Post subject: | Re: strange engine issue |
Yes. Or a 123 electronic dizzy, or a Pulsar one, any dizzy, electronic or otherwise. You have a dizzy cap and rotor; road dust + oil + water builds up on the outside of the cap and the H/T lead sparks can track across it. ![]() I spray and wipe the dizzy cap and coil top with WD40 about every 6 months. |
Author: | Mozzie [ Tue Sep 10, 2013 11:18 pm ] |
Post subject: | Re: strange engine issue |
My money is with DrMini. I Had a holden 253, the dissy was buried on the firewall and it was a bugger to work on but it always kept clean and dry. |
Author: | Lillee [ Wed Sep 11, 2013 9:37 am ] |
Post subject: | Re: strange engine issue |
Kennomini I think it's time to take the leads and cap off the dissy at inspect/clean/replace. Also check your accelerator cable, linkages etc on your carb. My car was running fine. Before Rylston this year I took my pulsar dissy cap off to inspect and found about half a kilo of carbon build up on the cap and rotor. Cleaned that up and hey hey! runs even better |
Author: | Kennomini [ Wed Sep 11, 2013 7:39 pm ] |
Post subject: | Re: strange engine issue |
Yeah a electrics clean is probably a good idea. |
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