For a 1200cc engine what is the correct static timing and idle rpm?One handbook states 10 dgrees btdc and 550 rpm.
(later engines use 7.5 dgrees and 850 rpm)
REDKG Officially Full-On Dubber
327 posts · joined Aug 2002 ·
idle speed & timing
Bizarre Moderator The artist formerly known as blue74l
12,789 posts · joined Aug 2002 ·
What distributor do you have?
550 rpm does not sound right
7.5 deg and 850 rpm sounds right for a vac distributor
if 009 it should be set to 30 - 32 deg max
550 rpm does not sound right
7.5 deg and 850 rpm sounds right for a vac distributor
if 009 it should be set to 30 - 32 deg max
Futue te ipsum!!!
REDKG Officially Full-On Dubber
327 posts · joined Aug 2002 ·
I have an original 1960 karman ghia handbook and a '61 beetle book and they both say set rpm at 550 then adjust mixture . That is for a 28pict and 30-1 carby . Both using a vaccuum only distributor. Also has two notches on the pulley and states set to 10 degrees btc static.
As you
stated i have always used 850 rpm and 7.5 static with a 30-32 final on 1500-1600 engines.
then again the early motors had a variety of valve clearances, most people now use .006.
As you
stated i have always used 850 rpm and 7.5 static with a 30-32 final on 1500-1600 engines.
then again the early motors had a variety of valve clearances, most people now use .006.
psimitar Son of Jim - Creator of Good
2,506 posts · joined Jan 2009 ·
IIRC the 10 degrees relates to the dual vacuum dizzy fitted to some auto's and yank emission control engines.
If you only have a single outlet vac can on the dizzy then 7.5 @ 850RPM is the way to go. YOu can also static time a 009 to this for starting and then time to 30-32 deg at over 2500rpm, 3000 is best to ensure some of the cheaper dizzys don't over advance things as there curve can be larger than expected.
If you only have a single outlet vac can on the dizzy then 7.5 @ 850RPM is the way to go. YOu can also static time a 009 to this for starting and then time to 30-32 deg at over 2500rpm, 3000 is best to ensure some of the cheaper dizzys don't over advance things as there curve can be larger than expected.
madness is in the eye of the beholder 👍
AA003 Custom Title Time!
1,189 posts · joined Oct 2011 ·
Australia had them also around '71-'72.psimitar wrote:IIRC the 10 degrees relates to the dual vacuum dizzy fitted to some auto's and yank emission control engines.
I think that they were set at 5 deg ATDC.
I read it on samba, so it must be correct.
Sometimes Volkswagen dealers sell spare parts. Amazing isn't it!😂
Sometimes Volkswagen dealers sell spare parts. Amazing isn't it!😂
REDKG Officially Full-On Dubber
327 posts · joined Aug 2002 ·
timing @ 10 degrees. rpm 550
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REDKG Officially Full-On Dubber
327 posts · joined Aug 2002 ·
rpm 550.
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psimitar Son of Jim - Creator of Good
2,506 posts · joined Jan 2009 ·
What manual is that from? Both my Haynes, Gregory and VW Service Manual say 7.5 BTDC for the majority of engines and 850rpm. there was only a small number that used 10 BTDC.REDKG wrote:rpm 550.
madness is in the eye of the beholder 👍
AA003 Custom Title Time!
1,189 posts · joined Oct 2011 ·
Was 10 BTDC for the 1960s vacuum only distributors? The big flat ones.
I read it on samba, so it must be correct.
Sometimes Volkswagen dealers sell spare parts. Amazing isn't it!😂
Sometimes Volkswagen dealers sell spare parts. Amazing isn't it!😂
REDKG Officially Full-On Dubber
327 posts · joined Aug 2002 ·
Correct, was the big distributor. this information came from the glovebox handbook printed in august 1960. The workshop manual from Delius,Klasing & co printed in berlin in 1965 also refers to idle at 550rpm and timing at 10 digress but mentions to set timing at 7.5 if "pinking" occurs from low octane fuel.
The 1965 glovebox book for the 1300, still refers to 550rpm but timing at 7.5 degrees.
My experience (1200cc 40hp) is it runs fine at 10 degrees but isn't smooth at 550rpm, much nicer at 850rpm
The 1965 glovebox book for the 1300, still refers to 550rpm but timing at 7.5 degrees.
My experience (1200cc 40hp) is it runs fine at 10 degrees but isn't smooth at 550rpm, much nicer at 850rpm
ACE76 Seriously Crusin Dubber
105 posts · joined Aug 2005 ·
An early Australian S.P. manual dated 1/1959 clearly says 7.5 deg BTDC and approx. 500-550rpm for all 1200's from Jan 1954, up to 1959. It says the dist. is mech AND vac. advance.
This is for what we call the "36hp" 1200 (though there were two different C.R's during that time).
If you have a later 40hp 1200 it may be different. Is that what you have?
This is for what we call the "36hp" 1200 (though there were two different C.R's during that time).
If you have a later 40hp 1200 it may be different. Is that what you have?
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REDKG Officially Full-On Dubber
327 posts · joined Aug 2002 ·
first of the 40hp ( september 1960). they had a vacuum only distributor with a large body with the condensor inside.