Need help timing chain 454
Le Mans Master
Joined: Oct 2006
Posts: 7,123
Likes: 433
From: Gladstone MO
C3 of Year Finalist (appearance mods) 2019
How many keys does the crank (lower) gear have? More than one? More than one, use the one marked "O".
The dots on the gears are correctly established when they are closest together.
Big gear dot at 6:00 and small gear dot at 12:00.
When you get them all together, and rotate the crank 2 full revolutions they will be back together.
I was close to Russia for a while, but the few words I picked up won't help me describe any better. Sorry.
The dots on the gears are correctly established when they are closest together.
Big gear dot at 6:00 and small gear dot at 12:00.
When you get them all together, and rotate the crank 2 full revolutions they will be back together.
I was close to Russia for a while, but the few words I picked up won't help me describe any better. Sorry.
Race Director
Joined: Mar 2006
Posts: 14,112
Likes: 28
From: Florida
How many keys does the crank (lower) gear have? More than one? More than one, use the one marked "O".
The dots on the gears are correctly established when they are closest together.
Big gear dot at 6:00 and small gear dot at 12:00.
When you get them all together, and rotate the crank 2 full revolutions they will be back together.
I was close to Russia for a while, but the few words I picked up won't help me describe any better. Sorry.
The dots on the gears are correctly established when they are closest together.
Big gear dot at 6:00 and small gear dot at 12:00.
When you get them all together, and rotate the crank 2 full revolutions they will be back together.
I was close to Russia for a while, but the few words I picked up won't help me describe any better. Sorry.
This ought to get both you guys in trouble.
Сколько ключей чудак (понижается), механизм имеют? Больше чем один? Больше чем один, используйте отмеченный "O" того.
Точки на механизмах правильно установлены, когда они являются самыми близкими вместе.
Большая точка механизма в 6:00 и маленькая точка механизма в 12:00.
Когда Вы получаете их всех вместе, и вращаете чудака 2 полных революции, они вернутся вместе.
Я был близко к России некоторое время, но немного слов, которые я собрал, не будут помогать мне описывать немного лучше. Жаль.
Try this link
http://translation2.paralink.com/
Limping across the line
Joined: Oct 2002
Posts: 5,299
Likes: 109
From: Peoria Az
Lower gear will have three marks on it "O" a square"[]" and a triangle "^"
You align one of those marks to to the "O" of the big gear.
"O" of big gear is placed at the 6 oclocl position as you have it.
Bring #1 piston to the top of its bore this will bring the crank key close to either the 12 or 2 oclock position (depends on year of motor).
Now you will see that the lower gear keyway are cut differently
One has a square cut in it. one is half rounded & I cant recall what the third cut is like.
I believe the half rounded cut is the one to use to install the cam at a zero degree advance.
The triangle and square marks are for setting cam advance or retard and I believe its 4 degrees for either mark
You align one of those marks to to the "O" of the big gear.
"O" of big gear is placed at the 6 oclocl position as you have it.
Bring #1 piston to the top of its bore this will bring the crank key close to either the 12 or 2 oclock position (depends on year of motor).
Now you will see that the lower gear keyway are cut differently
One has a square cut in it. one is half rounded & I cant recall what the third cut is like.
I believe the half rounded cut is the one to use to install the cam at a zero degree advance.
The triangle and square marks are for setting cam advance or retard and I believe its 4 degrees for either mark
Safety Car
Joined: Oct 2005
Posts: 3,570
Likes: 1
From: Algonac Michigan
And what positive results can be expected by "locking in" 4 btc or
4 atc?
Sorry for cutting in,but this is one of those questions for me that I have always wondered about but forget to ask.
Sly
4 atc?
Sorry for cutting in,but this is one of those questions for me that I have always wondered about but forget to ask.
Sly
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Burning Brakes
Joined: Dec 2007
Posts: 952
Likes: 0
Advancing the cam 4* brings the power band in sooner, retarding it brings it in later.
GOOD SHOW!!
Melting Slicks
Joined: Jan 2003
Posts: 2,877
Likes: 13
From: Doha
St. Jude Donor '08
This ought to get both you guys in trouble.
Сколько ключей чудак (понижается), механизм имеют? Больше чем один? Больше чем один, используйте отмеченный "O" того.
Точки на механизмах правильно установлены, когда они являются самыми близкими вместе.
Большая точка механизма в 6:00 и маленькая точка механизма в 12:00.
Когда Вы получаете их всех вместе, и вращаете чудака 2 полных революции, они вернутся вместе.
Я был близко к России некоторое время, но немного слов, которые я собрал, не будут помогать мне описывать немного лучше. Жаль.
Try this link
http://translation2.paralink.com/
Сколько ключей чудак (понижается), механизм имеют? Больше чем один? Больше чем один, используйте отмеченный "O" того.
Точки на механизмах правильно установлены, когда они являются самыми близкими вместе.
Большая точка механизма в 6:00 и маленькая точка механизма в 12:00.
Когда Вы получаете их всех вместе, и вращаете чудака 2 полных революции, они вернутся вместе.
Я был близко к России некоторое время, но немного слов, которые я собрал, не будут помогать мне описывать немного лучше. Жаль.
Try this link
http://translation2.paralink.com/
Pro
Joined: Jul 2005
Posts: 517
Likes: 7
From: Peoria IL
You ARE going to be degreeing this cam in anyway, right? Mistakes in being "one tooth off" are quickly apparent when you confirm that the cam timing is as expected.
EDIT: Put the engine at exactly TDC then you don't have to worry about which crank gear tooth to worry about. Use a ruler between the cam centerline and the top of the crankshaft to line up the camshaft tooth.
EDIT: Put the engine at exactly TDC then you don't have to worry about which crank gear tooth to worry about. Use a ruler between the cam centerline and the top of the crankshaft to line up the camshaft tooth.
Last edited by dstaley; Nov 1, 2008 at 09:56 AM.
Tech Contributor
Joined: Aug 1999
Posts: 14,377
Likes: 6,376
From: At my Bar drinking and wrenching in Lafayette Colorado
Keep in mind that the engine is on the exhaust stroke when you put the cam dot at 6:00 and the crank at 12:00 - you need to put both dots straight up at the 12:00 position if you're going to drop the distriubutor in the engine and get it timed. If you put the distributor in with the cam dots pointed "together" the distributor will be 180 degrees out.
Lars
Lars