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Re: Did my timing chain jump out of time
[Re: MoparforLife]
#384565
07/23/09 10:25 PM
07/23/09 10:25 PM
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Joined: Feb 2003
Posts: 10,239
Someplace you aren't
SomeCarGuy
I Live Here
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I Live Here
Joined: Feb 2003
Posts: 10,239
Someplace you aren't
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Quote:
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The timing chain has always been a weak link.
Only if you have the nylon sprocket and fairly high milage. Steel gears and good chain rarely give any problem.
Now now, those are sprockets not gears. 
Boy are we picky tonight. Fixed it you satified. I think everybody understood the way it was but since you insist. 
You need to clear it with 440sixpack
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Re: Did my timing chain jump out of time
[Re: MNobody]
#384566
07/23/09 10:52 PM
07/23/09 10:52 PM
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Anonymous
Unregistered
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Anonymous
Unregistered
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Quote:
How would that method tell you if your chain and sprockets were bad? You could have slop at the cam/distributor gear or slop where the distributor shaft meets the drive gear?
I don't know why everybody wants to turn this into a pee contest, I'm just tryin to find out what he DID. Did he move the dist. a few degrees, or a LONG ways?
The chances that something happened at the cam/ intermediate shaft--and the engine still runs is about nill
The way I see it IF he really had to change the dist to get it to run, the no 1 suspect is the cam drive.
But maybe he just THINKS he moved the timing---that is, maybe it's flooded like someone else mentioned, and moving the dist---it happened to start.
So it IS is it not important to tell as close as you can to what you DID and by how much. That is do you know for sure how much you actually changed the timing?
Another good thing to try--now that "it" has your attention--is to wrench the engine back/ forth against the timing chain slop. You'll feel it with a wrench, and it's obvious. If you have more than just a very few degrees, say 5* or so, the chain/ sprockets are toast.
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Re: Did my timing chain jump out of time
#384567
07/23/09 10:57 PM
07/23/09 10:57 PM
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Joined: Jun 2008
Posts: 565
IA
landon1
mopar
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mopar
Joined: Jun 2008
Posts: 565
IA
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just throwing this out there...my 440 was running like crap.....the original distributor bushings were worn pretty well and the vacuum advance was not working at all - replaced (upgraded) distributor and all was well
'71 Satellite Sebring 440
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Re: Did my timing chain jump out of time
[Re: mike_vango]
#384571
07/24/09 01:20 AM
07/24/09 01:20 AM
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Anonymous
Unregistered
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Anonymous
Unregistered
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Quote:
Wow. I am no expert on the ignition timing
by any means. The vac advance used to point in the 9 o'clock range now it is at 6 o'clock. So we timed it then tuned it with a vacuum guage. It seems to now be running strong but did not test drive it. Sorry I am not an ace mechanic.
THAT is a huge change. I'd guess you are headed for a timing chain. This a smallblock, right? If memory serves, you can yank the fuel pump and feel the chain slop through the pump hole. With (CAREFUL!!) a finger, and a wrench back/ forth on the front nut, you should be able to get a feel for the slop. Might want to drain the oil and check for chunks of sprocket (phenolic, or "plastic" chips in the pan)
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Re: Did my timing chain jump out of time
[Re: mike_vango]
#384574
07/24/09 11:40 AM
07/24/09 11:40 AM
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Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
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I'd go back & put the marks on 10BTDC #1 compression & with the rotor under #1 terminal turn the vac can so the reluctor/pickup magnet are aligned & go from there.
live every 24 hour block of time like it's your last day on earth
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Re: Did my timing chain jump out of time
[Re: aarcuda]
#384576
07/24/09 01:51 PM
07/24/09 01:51 PM
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Joined: Feb 2008
Posts: 711
Montana
Posest
super stock
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super stock
Joined: Feb 2008
Posts: 711
Montana
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Quote:
timing cog?
is that a good term for the gear sprocket device?
by any chance, did you change the plug wires and move them 1 spot over by accident?
That was my first thought. Maybe you did this doing a tune up and never caught it. 
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