23-12-2018, 08:57 PM
(This post was last modified: 23-12-2018, 09:07 PM by steve anderson.)
[attachment=4853 Wrote:Ritchie Wilson pid='20999' dateline='1545549767']
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DSCN1262.JPG (Size: 122.61 KB / Downloads: 455) The 37 A7 would have a centre main bearing. Did you do any modifications to the CM housing? How did you ensure the CM was in alignment with the other two main bearings?
The Hadley crank and rods come with drawings to modify CC by machining rear brg. hole with notches and machine out cent. main web .. The counter weights on crank come off to get crank in case . This engine easily turns 7000 in !st & 2nd . I LOVE this crank and rods .. Everything is balanced within 1 gram .. I used 3 main CC cause thats what I have and I thought the left over webbing might help rigidity wise .. I blocked the oil tube to cent. main which cuts off oil to cent. cam bush. .. That's why I have oil line going across frt. of engine to oil the lifter galley and cent. bush. from outside . Pistons were made in Germany by Wossner , they are gorgeous !! I doubt I have done anything that hasn't been done before , but it is great fun to think what to do next !! STEVE
(23-12-2018, 07:02 AM)Tony Press Wrote: Amazing what you can do with a basically standard Austin Seven engine !!
From all reports the factory blown side valve engines had trouble both with the head gasket and holding the cast iron block on to the aluminium crankcase when reaching over 110 miles an hour.
I have seen pics of through studs and wonder what to do about that .. What RPM might they be turning ?? The methanol might help with keeping engine assembly cooler overall . STEVE