| [ Total Views: 596 | Total Replies: 11 | Thread Id: 108073 ] |
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 Ollie
A.k.a.: Ollie Clarke
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| posted on January 5th, 2015 at 08:43 PM |
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Thoughts on a coughing motor
Hey guys,
I'm running twin 48IDF's on a 2276, and I'm noticing there is a splutter through the revs, particularly under medium load acceleration. It makes
putting around a big of a chore, and was wondering if anyone had any ideas. If I mash the Go-Pedal from a standing start, it seems to miss the
cough.
I'm thinking it could be something to do with the Carbys, or would an exhaust leak also maybe be something to look for?
Cheers in advance!
Ollie
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 Bizarre
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| posted on January 5th, 2015 at 09:39 PM |
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I would try a blocked idle jet first
Pull a lead one at a time at idle and see if one makes no difference
Futue te ipsum!!!
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Ollie
A.k.a.: Ollie Clarke
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| posted on January 5th, 2015 at 09:42 PM |
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Even thought the car has no problems at all idling?
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ragged
A.k.a.: David
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| posted on January 5th, 2015 at 11:01 PM |
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Does this happen around 2,000 to 2,500 rpm? Dave
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Ollie
A.k.a.: Ollie Clarke
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| posted on January 6th, 2015 at 07:20 AM |
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| Quote: | Originally
posted by ragged
Does this happen around 2,000 to 2,500 rpm? Dave
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Hey Dave,
Yeah that sounds pretty much right! I'm suspecting perhaps the change to the main jet may be problematic?
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vassy66T1
A.k.a.: Marcus Vass
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| posted on January 6th, 2015 at 10:20 AM |
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Make sure your linkages are well synchronised.
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ragged
A.k.a.: David
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| posted on January 6th, 2015 at 11:49 AM |
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Hi Ollie,
Yes, it is the entire main jet circuit that needs tuning. That includes main, air correction and emulsion tube.
Do you know what size jets and emulsion tubes you have at the moment? What size venturis and idle jets too?
Dave
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Bizarre
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| posted on January 6th, 2015 at 01:20 PM |
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Ollie
Is this something that has developed lately or something that was always there?
Futue te ipsum!!!
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Ollie
A.k.a.: Ollie Clarke
Insano Dub Head
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| posted on January 8th, 2015 at 08:10 PM |
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Sorry for the slow replies!
As long as I've had the carbys it's been there..I don't drive it too much but it's gotten worse of late. I've also worked out if I'm at lower
revs in say fourth or third, and just sit at the trouble spot, it will kind of cough and lose some power slightly and I have to give it more gas.
Does this help?
Carby rebuild on the cards?
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Ollie
A.k.a.: Ollie Clarke
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| posted on January 8th, 2015 at 08:19 PM |
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It almost feels like it still sucking but getting no power. If that makes sense...
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 barls
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| posted on January 8th, 2015 at 08:31 PM |
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give matt berry a call and chat to him. he sorted mine real easy
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Ollie
A.k.a.: Ollie Clarke
Insano Dub Head
Yeah Buddy
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| posted on January 8th, 2015 at 08:39 PM |
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Thanks Barls! I'll bell him tomorrow 
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