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287 timing....

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Rebel 287 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Rebel 287 Quote  Post ReplyReply Direct Link To This Post Topic: 287 timing....
    Posted: Mar/20/2010 at 2:12pm
Since the car is going to get out pretty soon,wanted to
know what you think about it...
It concern a "stock"287 ,600cfm Holley and double 2in exhaust,
Set the initial timing at 18 deg initial advance,
Is it too much?Run fine but didn't tryed on the road(snow)
Does anyone have recomendations,
I'm still on trial and errors with these engines and don't want to
mess it!!Wacko
I know how to write....in french at least
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FuzzFace2 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote FuzzFace2 Quote  Post ReplyReply Direct Link To This Post Posted: Mar/20/2010 at 7:45pm

I think 18 is a little too much I would start at 10 BTDC or at the stock setting and work up from there. The thing with knock is you can’t hear it but it can be there. When you do hear it was there before then doing damage so be careful. What is the total timing and at what RPM is it all in by?

The other thing to keep an eye on is how lean the carb is at speed as this can cause knock too.

Dave ----

TSM = Technical Service Manual

75 Gremlin X v8 (for sale)
76 Gremlin X i6 (for sale)
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Rebel 287 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Rebel 287 Quote  Post ReplyReply Direct Link To This Post Posted: Mar/20/2010 at 8:38pm
Carb is runing a little rich for now so i should have a safe margin....
I started at about 10 but ran better like that!!
Ok i know,there no load on itLOL
Don't know total advance but dist is totally stock(down to the point)
so i guess not that much.....
Probably too much initial like you say think i'll start things up at around 12 and be safe for now.....
Tanks
I know how to write....in french at least
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Post Options Post Options   Thanks (0) Thanks(0)   Quote FuzzFace2 Quote  Post ReplyReply Direct Link To This Post Posted: Mar/20/2010 at 9:11pm
If the dist. is stock then you can look up the dist. spec in the TSM to see what total is and when it is all in by.
Dave ----
TSM = Technical Service Manual

75 Gremlin X v8 (for sale)
76 Gremlin X i6 (for sale)
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Rebel 287 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Rebel 287 Quote  Post ReplyReply Direct Link To This Post Posted: Mar/20/2010 at 9:16pm
Don't have TSM,the amcforum is my TSMLOL
I know how to write....in french at least
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Rebel 327 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Rebel 327 Quote  Post ReplyReply Direct Link To This Post Posted: Mar/21/2010 at 9:30pm
The TSM says max initial advance is 10 degrees.  The marks on your vibration dampener start at O degrees and the next mark is 5 and then 10 degrees BTDC as you go clockwise standing in front of the engine.  Those are the only marks on the dampener.  The 600 cfm carb may be a little rich for a stock 287 with stock cam.  Good Luck.
Rebel 327 4-speed
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Rebel 287 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Rebel 287 Quote  Post ReplyReply Direct Link To This Post Posted: Mar/22/2010 at 6:36am
Originally posted by Rebel 327 Rebel 327 wrote:

The TSM says max initial advance is 10 degrees.  The marks on your vibration dampener start at O degrees and the next mark is 5 and then 10 degrees BTDC as you go clockwise standing in front of the engine.  Those are the only marks on the dampener.  The 600 cfm carb may be a little rich for a stock 287 with stock cam.  Good Luck.
Tanks,so with the 600 on top,10/12 i should be ok as a starting point.....
I finally learn why there's 3 mark on damperLOL.....
 
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Rebel 327 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Rebel 327 Quote  Post ReplyReply Direct Link To This Post Posted: Mar/22/2010 at 7:16am
I would get a TSM--they have lots of pictures and answers... and you can get them right away. 
Rebel 327 4-speed
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Rebel 287 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Rebel 287 Quote  Post ReplyReply Direct Link To This Post Posted: Mar/22/2010 at 8:05am
Originally posted by Rebel 327 Rebel 327 wrote:

I would get a TSM--they have lots of pictures and answers... and you can get them right away. 
Yeah i know but here it's rare and overpriced...
Last one i come by was more than 100bucks and almost unreadable
since it was full of oily fingers...
So for now i search the amc forumLOL
(Just for now since i've spotted another one)
I know how to write....in french at least
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Post Options Post Options   Thanks (0) Thanks(0)   Quote gtoman_us Quote  Post ReplyReply Direct Link To This Post Posted: Mar/22/2010 at 12:44pm
Watch Ebay under Rambler Parts.  Someone is reprinting them for $35-40 bucks
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