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engine won't rev

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engine won't rev
Pricey Offline
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Joined: Aug 2017 Posts: 27 Threads: 4
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#7
20-08-2018, 05:21 PM (This post was last modified: 20-08-2018, 05:23 PM by Pricey. Edit Reason: Poor grandma )
Hibbo

I have had recent issues with the 26VA on my 1937 Ruby.

All documented here...
http://www.austinsevenfriends.co.uk/foru...p?tid=1458

You mention using the choke to assist therefore making the mixture richer in fuel. This is not dissimilar to my issue.

Turned out to be the emulsion block. With a straight edge it was minutely bowed.Once I had lapped it against the carb and made a new gasket performance was transformed.
I had tried carb cleaner but because the emulsion block is within the carb it did not highlight that air was bleeding past.

Since that I have also ensured the carb bowl to body is square and further transformed performance.

Been out today on a round trip from Derbyshire into Notts and back, holding a steady 40mph on the flat but as soon as there is any incline 30mph and less. 

If you look at the original carb repair instructions it describes lapping the emulsion block. Try it. At least you can then tick it off the list of possibles.  

HTH

Dave
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Messages In This Thread
engine won't rev - by hibbo - 20-08-2018, 02:59 PM
RE: engine won't rev - by Andy Bennett - 20-08-2018, 04:14 PM
RE: engine won't rev - by hibbo - 20-08-2018, 05:22 PM
RE: engine won't rev - by Chris KC - 20-08-2018, 04:22 PM
RE: engine won't rev - by Austin in the Shed - 20-08-2018, 04:43 PM
RE: engine won't rev - by dickie65 - 20-08-2018, 04:58 PM
RE: engine won't rev - by Reckless Rat - 20-08-2018, 04:59 PM
RE: engine won't rev - by Pricey - 20-08-2018, 05:21 PM
RE: engine won't rev - by John Mason - 20-08-2018, 05:22 PM
RE: engine won't rev - by Jeff Taylor - 20-08-2018, 05:53 PM
RE: engine won't rev - by hibbo - 20-08-2018, 06:17 PM
RE: engine won't rev - by Ruairidh Dunford - 20-08-2018, 06:26 PM
RE: engine won't rev - by hibbo - 20-08-2018, 07:21 PM
RE: engine won't rev - by Reckless Rat - 20-08-2018, 07:26 PM
RE: engine won't rev - by John Cornforth - 20-08-2018, 08:24 PM
RE: engine won't rev - by hibbo - 21-08-2018, 09:59 AM
RE: engine won't rev - by Ken Morton - 20-08-2018, 08:32 PM
RE: engine won't rev - by Hedd Jones - 20-08-2018, 08:46 PM
RE: engine won't rev - by Bob Culver - 20-08-2018, 08:46 PM
RE: engine won't rev - by Reckless Rat - 20-08-2018, 08:55 PM
RE: engine won't rev - by Eddamoo - 20-08-2018, 09:08 PM
RE: engine won't rev - by Jeff Taylor - 20-08-2018, 11:42 PM
RE: engine won't rev - by Andy Bennett - 21-08-2018, 11:31 AM
RE: engine won't rev - by Chris KC - 21-08-2018, 11:40 AM
RE: engine won't rev - by Reckless Rat - 21-08-2018, 11:55 AM
RE: engine won't rev - by hibbo - 21-08-2018, 12:11 PM
RE: engine won't rev - by Andy Bennett - 21-08-2018, 04:29 PM
RE: engine won't rev - by Reckless Rat - 21-08-2018, 04:36 PM
RE: engine won't rev - by hibbo - 21-08-2018, 05:45 PM
RE: engine won't rev - by Colin Wilks - 21-08-2018, 05:09 PM
RE: engine won't rev - by Scarlet O'Hara - 21-08-2018, 05:42 PM
RE: engine won't rev - by Paul N-M - 21-08-2018, 06:03 PM
RE: engine won't rev - by hibbo - 21-08-2018, 06:38 PM
RE: engine won't rev - by hibbo - 21-08-2018, 08:44 PM
RE: engine won't rev - by Ruairidh Dunford - 21-08-2018, 06:22 PM
RE: engine won't rev - by Reckless Rat - 21-08-2018, 07:36 PM
RE: engine won't rev - by Andy Bennett - 21-08-2018, 09:11 PM
RE: engine won't rev - by Reckless Rat - 21-08-2018, 09:23 PM
RE: engine won't rev - by hibbo - 21-08-2018, 09:43 PM
RE: engine won't rev - by hibbo - 22-08-2018, 07:29 PM
RE: engine won't rev - by Alan - 21-08-2018, 09:59 PM
RE: engine won't rev - by Hedd Jones - 21-08-2018, 11:06 PM
RE: engine won't rev - by Bob Culver - 21-08-2018, 11:45 PM
RE: engine won't rev - by John Mason - 22-08-2018, 08:44 AM
RE: engine won't rev - by Charles P - 22-08-2018, 07:40 PM
RE: engine won't rev - by Ruairidh Dunford - 22-08-2018, 07:45 PM
RE: engine won't rev - by hibbo - 25-08-2018, 07:25 PM
RE: engine won't rev - by Ruairidh Dunford - 25-08-2018, 07:34 PM
RE: engine won't rev - by hibbo - 25-08-2018, 08:15 PM
RE: engine won't rev - by Reckless Rat - 25-08-2018, 08:42 PM
RE: engine won't rev - by hibbo - 25-08-2018, 09:08 PM
RE: engine won't rev - by Reckless Rat - 25-08-2018, 09:16 PM
RE: engine won't rev - by hibbo - 25-08-2018, 09:50 PM
RE: engine won't rev - by Reckless Rat - 26-08-2018, 08:29 AM
RE: engine won't rev - by "Slack Alice" Simon - 26-08-2018, 12:09 PM
RE: engine won't rev - by hibbo - 26-08-2018, 03:31 PM
RE: engine won't rev - by Andy Bennett - 26-08-2018, 04:02 PM

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