omega 24 v6
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| posted on 14/3/10 at 02:36 PM |
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An idea MIGHT be to get it running and at its idle position and then smear some thick grease/vaseline round the barrel/opening ( without moving the
rollers).
Then start it and see if the idle is lower ( or if it idles at all). This could possibly eliminate your concern at the roller to body clearances.
If it sucks the grease in then the clearances must be substantial I'd have thought.
If it looks wrong it probably is wrong.
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Hellfire
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| posted on 14/3/10 at 03:02 PM |
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Does it have a MAF sensor fitted and if so, have you tried cleaning it?
Phil
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beaver34
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| posted on 14/3/10 at 06:51 PM |
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quote:
Originally posted by flak monkey
I have just been speaking to a very knowledgable chap at Track n Race down in London who has given me a few pointers and things that I should try
before going too far.
First I am going to have the throttle bodies off and see if I can see anything obvious. Maybe the seals arent sitting right, but I think it would have
to be all 4 of them as they all show the same airflow on the synchro.
If that doesnt do anything then its back to playing with the map. The best suggestion at the moment seems to be to run a lot less ignition advance at
idle (even as low as 0 degrees is OK at idle which suprised me) to bring the idle speed down. The concern at the moment is that the idle speed is
1300rpm even though its running massively rich (11.5 AFR) and with the theoretically correct advance (10 deg).
track and road? if so they are the people who map my cars fantastic guys and i dont really think anyone knows better than them, they do the mapping
for ford
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flak monkey
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| posted on 14/3/10 at 06:55 PM |
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Stripped everything down on the intake side, made sure everything was super clean and reassembled it all. Now have a hunting idle (800-1200rpm) which
indicates to me I have an air leak somewhere  It could have been that I started off with a substantial air leak causing the idle to be so high.
It now also revs a lot better without really changing anything else, so I might be heading in the right direction.
Its still all off at the moment, think I will smear some hylomar on the seals for the throttle bodies when I reassemble everything and see if that
helps. Been on and off twice, both times with the same result.
PS yes I meant Track n Road... they also told me not to bother with megasquirt - and gave several good reasons. But as I already have it I'll
stick with it for at least this year.
[Edited on 14/3/10 by flak monkey]
Sera
http://www.motosera.com
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fatbaldbloke
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| posted on 14/3/10 at 07:34 PM |
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quote:
they also told me not to bother with megasquirt - and gave several good reasons
I'd be interested in a summary of their reasons. I've been very successful with Megasquirt, especially taking into account the cost, but
I haven't really any experience with anything else against which to compare.
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