tr7triumph.com

Have had this blip in RPM have tried ignition system ,i.e. advance and ,retard plugs points coil .ajusted fuel ,air ,carb mixture ,there siting at 4.5 emmisions, Co2 is about 2.5 ,tried plugs cables ,check compression siting at 150 to 155 all near enough even ,car runs well no loss in power .
when car is siting at 3000 revs slight wobble in engine ,oil pressure sitting at idle 22lbs hot about 45 lbs ,have i mist something have worked on cars ,about 35 years ,may be stick valve slight play in distributor ,poss timing chain stretch never be changed ,only down 67000 miles from new ,

Hi, theres been lots of interest in this problem does no one no any answers ect. its had 78 views
i feel were back in the 70/80 years ,of bad mechanics ,and at that time cars lying on motorway
slip roads broken down which we seen oven in the 70/80 ect
At the time Tr range had issue they were never reliable ,,I
can say in 10 years i have had my 7 never has it let me down

Sorry swordfish, but I can't understand, from your description, just what your 'blip' is. Perhaps if you could be more descriptive of your problem, some may be more able to offer suggestions.

Hasbeen

Thanks its ,Juddering at 3000 rev , i.e. plib

Juddering as in misfiring?
Does the engine accelerate beyond 3000 rpm?
Difference between engine under load or not?

Its not misfire
its from standstill ,not moving Bonet up using cable
Car can do over 100 mph easy

This juddering or uneven running is mostly at around 3000 RPM while car is in neutral, yes? There is no load on the engine, no work being done at this time. Am I correct?
Is the normal slow idle nice and smooth? Or a bit shaky?
I think I would richen the mixture at idle just a wee bit. Are the carbs SU or Stromberg? I know that richening this type of carburetor for smooth idle will also add richness throughout it's operation but the very miniscule amount of added richness I'm speaking of will not effect anything else.