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Missing @ 3500RPM

To: MG Listserver <mgs@Autox.Team.Net>
Subject: Missing @ 3500RPM
From: Chris Attias <cattias@cats.ucsc.edu>
Date: Mon, 23 Nov 1998 10:18:22 -0800
Listers (Knobbly and otherwise),

I'm having a problem I haven't been able to solve yet, and could use as
little advice.  My '64  18G engine seems to "miss" or run out of breath
(I'm not sure yet which is the better description) at 3500 RPM or so.  It
runs fine up to that point.

Facts in the case:

*New coil.
*New fuel pump with regulator set to 2 psi.
*New plugs.
*Old points, condenser, rotor and cap; dwell 62 degrees; dynamic timing 14
deg BTDC@ idle.
*Vacuum advance works.
*Distributor: 25D   "40778"  (not sure what application this came
from--anybody with a period Lucas catalog out there?)
*Older, rebuilt stock carbs
*PCV valve seems OK.

Any ideas on what to check next?

Chris Attias
'64 MGB



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