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initial start seeting after engine overhaul

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J

JohnDough

Senior Member
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I'm running a
1275 with 60thou oversize pistons
286 scatter cam,
gas flowed head
set of HS2.

what will teh best setting be to get the engien started first time?
Ignition, static set at?
SU's
idle screw- how many turns in
jets - how many flats/ turns out from flat with base of carb


will teh SU's be ok, shoudl i go for weber, 40 ok or 45

car will be used on street and maybe a hill climb
 
Go right by the Hayns manual for initial start.

Ign = TDC By eye
SUs 12 flats
Idle screws half a turn
 
I would think any answers would just be guesses.

However, don't make the engine work hard for the first 20 minutes and you'll want it "easy" to start. Were it my engine, I'd start with a static timing around 5 BTDC. If you're using the standard carb needles, I'd opt for a rich initial setting so the valves and exhaust don't run too hot while breaking in the cam. As a guess, I'd go for at least 2-1/2 if not 3 full turns down on the adjusting nuts.

During the break in for the new cam, I'd have a long screwdriver handy to set and re-set the idle speed. Start with the usual "contact + 1 turn in" just to get it started but when breaking in the cam I believe you aim for 2000 RPM for 20 minutes. Adjust the idle stops as necessary.

My Mini is also bored +60 with a mildly ported head, twin HS2s, and an SW5 cam. Mine ran lean on the initial restart and my comments above represent some of what I would have done differently on that initial restart of my engine.
 
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