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Technical => Engine Tech => Topic started by: CustomT on November 15, 2008, 09:32:19 AM

Title: Correct timing?
Post by: CustomT on November 15, 2008, 09:32:19 AM
Ok, I have a stroked 302 with an MSD ignition with a mallory distributor and I am trying to find out the correct timing for this engine, can anyone help with this?  Specks on my engine are in my sig.
Title: Correct timing?
Post by: Kitz Kat on November 15, 2008, 10:01:05 AM
I don't think your going to get a specific number,You may have to add timing till it pings and back off from there.
Title: Correct timing?
Post by: Sick88Tbird on November 16, 2008, 01:25:29 PM
I would recommend starting at around 28* TOTAL timing and see how it runs.

Good luck,
Don
Title: Correct timing?
Post by: CustomT on December 13, 2008, 08:23:28 AM
Finally got her timed right.  Timing was set at 30 deg BTDC, way to much.  Played around with her and finally got a good timing on her, she likes it at 16 deg BTDC at a total of 38 degrees.  She runs sweet now.  One thing I did notice, the timing chain is a bit stretched, couldn't keep the timing line in one spot it kept bouncing up and down a bit.  Need to put a new one on before it becomes to late.
Title: Correct timing?
Post by: 88 Blackbird 5.0 on December 13, 2008, 10:49:37 AM
Quote from: CustomT;247401
Finally got her timed right.  Timing was set at 30 deg BTDC, way to much.  Played around with her and finally got a good timing on her, she likes it at 16 deg BTDC at a total of 38 degrees.  She runs sweet now.  One thing I did notice, the timing chain is a bit stretched, couldn't keep the timing line in one spot it kept bouncing up and down a bit.  Need to put a new one on before it becomes to late.


You put all that money into that sweet ride of yours and you didn't replace the timing chain?  Come on man.  You know better than that.  It would be a shame to have an engine like yours trashed because of a $40 part being reused.
Now.  Hold your hand out so I can smack it!
Title: Correct timing?
Post by: jcassity on December 13, 2008, 02:02:57 PM
you may be off a tooth because of the stretch.

you should find #1 TDC by turning the crank in its normal running rotation and only then drop in the dizzy.

If you rotated the crank in both directions to fine tune the harmonic pointer, this is the reason you may be off one tooth.
Title: Correct timing?
Post by: CustomT on December 13, 2008, 03:31:06 PM
Quote
you may be off a tooth because of the stretch.

you should find #1 TDC by turning the crank in its normal running rotation and only then drop in the dizzy.

If you rotated the crank in both directions to fine tune the harmonic pointer, this is the reason you may be off one tooth.


No, I turned crank in its normal running rotation so I know the chain is stretched.  Now just have to change the chain.

Quote
You put all that money into that sweet ride of yours and you didn't replace the timing chain? Come on man. You know better than that. It would be a shame to have an engine like yours trashed because of a $40 part being reused.
Now. Hold your hand out so I can smack it!


I know, I know, don't know what I was thinking when we built it.  Guess for whatever reason we just over looked it :punchballs:  and yes I do know better than that, must of had a few too many beers at that point :o  Got the car parked till the new chain arrives and I can change it out.  Last thing I want or need is it to bust while I'm running down the road.

Consider it smacked:beatyoass:
Title: Correct timing?
Post by: 88 Blackbird 5.0 on December 13, 2008, 07:49:05 PM
That car sure is perdy.  Do you ever drive that thing?  It looks like you leave it in the garage, with a car cover over it all the time Dude.  :D
Title: Correct timing?
Post by: CustomT on December 14, 2008, 08:46:33 AM
Quote from: 88 Blackbird 5.0;247473
That car sure is perdy.  Do you ever drive that thing?  It looks like you leave it in the garage, with a car cover over it all the time Dude.  :D


LOL, she is my daily driver.  I try to keep her clean and happy as much as possible.
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