287 timing....
Printed From: TheAMCForum.com
Category: The Garage
Forum Name: AMC V8 Engine Repair and Modifications
Forum Description: AMC-made V8 engine mechanical, ignition and fuel from basic repair to high-perf modifications
URL: https://theamcforum.com/forum/forum_posts.asp?TID=17746
Printed Date: Apr/19/2024 at 5:10pm
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Topic: 287 timing....
Posted By: Rebel 287
Subject: 287 timing....
Date Posted: Mar/20/2010 at 1:12pm
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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!!  ------------- I know how to write....in french at least |
Replies:
Posted By: FuzzFace2
Date Posted: Mar/20/2010 at 6:45pm
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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 70 Javelin 360/auto drag car 70 Javelin 360/T5 Street car |
Posted By: Rebel 287
Date Posted: Mar/20/2010 at 7:38pm
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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 it
 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 |
Posted By: FuzzFace2
Date Posted: Mar/20/2010 at 8:11pm
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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 70 Javelin 360/auto drag car 70 Javelin 360/T5 Street car |
Posted By: Rebel 287
Date Posted: Mar/20/2010 at 8:16pm
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Don't have TSM,the amcforum is my TSM ------------- I know how to write....in french at least |
Posted By: Rebel 327
Date Posted: Mar/21/2010 at 8:30pm
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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 |
Posted By: Rebel 287
Date Posted: Mar/22/2010 at 5:36am
I finally learn why there's 3 mark on damper
.....------------- I know how to write....in french at least |
Rebel 327 wrote:Posted By: Rebel 327
Date Posted: Mar/22/2010 at 6:16am
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I would get a TSM--they have lots of pictures and answers... and you can get them right away. ------------- Rebel 327 4-speed |
Posted By: Rebel 287
Date Posted: Mar/22/2010 at 7:05am
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 forum
(Just for now since i've spotted another one) ------------- I know how to write....in french at least |
Posted By: gtoman_us
Date Posted: Mar/22/2010 at 11:44am
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Watch Ebay under Rambler Parts. Someone is reprinting them for $35-40 bucks ------------- Moderator - Emeritus Used to collect trophies, now I collect gas receipts and put on miles 1964 Rambler Ambassador Cross Country Wagon 1965 GTO 1931 Model A original survivor "Flat Roofs are Cool" |
Posted By: Rebel 287
Date Posted: Mar/22/2010 at 12:19pm
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I'll watch em tanks... ------------- I know how to write....in french at least |