Re: Timing issues
[Re: dnd0001]
#1489559
08/23/13 08:35 PM
08/23/13 08:35 PM
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Joined: Aug 2003
Posts: 12,291 Kent, Wa
340SHORTY
Truck Nut
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Truck Nut
Joined: Aug 2003
Posts: 12,291
Kent, Wa
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Why did you mess with the dist? Why didnt you just line the dots at 12 o clock on the crank and 6 o clock on the crankgear? you probally need to advance the timeing via the dist..
I am truckless..
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Re: Timing issues
[Re: dnd0001]
#1489560
08/23/13 09:10 PM
08/23/13 09:10 PM
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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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bump the starter relay till you feel compression building with your thumb on the #1 cyl with the plug out. Hand turn the crank further clockwise with a 1&1/4" socket/breaker bar till the dampener timing slit is at 10BTDC (mild cam) or 15BTDC (wild (er) cam. Turn the housing till the magnet is dead even with the tooth that places the rotor under or near under the cap terminal with the #1 plug wire on it with the vac adv located in its' correct general location so the dist housing has room to be turned either way. Fire it up.
live every 24 hour block of time like it's your last day on earth
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Re: Timing issues
[Re: 340SHORTY]
#1489561
08/23/13 09:12 PM
08/23/13 09:12 PM
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Joined: Dec 2007
Posts: 88 Minnesota, USA
dnd0001
OP
member
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OP
member
Joined: Dec 2007
Posts: 88
Minnesota, USA
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Originally the car died on me and I checked everything I could. Wasn't sure if the timing slipped. I opened it up and it didn't look like it slipped. I put on a new pre- stretched chain and gears. I had it 12 and 6 (or #6 TDC on the compression stroke) when I put the new chain on. So that wasn't the problem. Replaced the dizzy to see if that had caused the car to die. Not I can't get things right. Don't know if I screwed up the timing chain install. The original only had 1500 miles so it didn't stretch a lot. But I was there so I changed them. Once I put it on TDC #1 I rotated the distributor timing gear to point at #1 manifold bolt. Was that a mistake? I wouldn't think it mattered as long as the dizzy was set right. I then put the dizzy in lined up #1 plug wire and dizzy cap so I would be at 0 degrees. Rotated it counterclockwise about 1/8 inch and she wouldn't start at all. Turned it clockwise about 3/8 inch and she started, run rough and died. Rotating the dizzy counterclockwise should advance the engine right? I have checked the wire layout three times. the 340 should be the same as a 318 or 360. All new wires, new dizzy and new cap.
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Re: Timing issues
[Re: Dodgem]
#1489569
08/23/13 11:38 PM
08/23/13 11:38 PM
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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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This is a stock cam right? Pull the pass valve cover & hand turn the crank with the socket/breaker bar till both of #6 cyls' rocker arms are moving and are at the same height. (Can bump it over electrically with the starter relay to get close then finish by hand with the bar/socket). At that point move the crank back & forth slightly till they're dead even & if at that point the dampener timing slit is within a degree or two of TDC on the timing tab (assuming no slop in the chain & it is new so should be good) then you are OK with the dot to dot on the tchain/gears that you did & no need to go back inside. Then back the crank up slightly to 20 then come forward to 10 or 15 & line up the magnet/housing as described with the rotor under #1 plug wire cap terminal. EDIT faster yet lets assume we are Ok dot to dot & without pulling the valve cover you might set the marks at 10 BTDC (20 then forward to 10) then if the rotor is close to being under #1 set the magnet dead even with the tooth & if the rotor is close to being under #6 set the magnet dead even with the tooth & see if it will fire. If no go then pull the valve cover & check dot to dot with "rockover"
Last edited by RapidRobert; 08/24/13 12:44 AM.
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Re: Timing issues
[Re: RapidRobert]
#1489570
08/24/13 09:58 AM
08/24/13 09:58 AM
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Joined: Mar 2008
Posts: 5,746 Ontario, Canada
Dodgem
master
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master
Joined: Mar 2008
Posts: 5,746
Ontario, Canada
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Hmm that should work I think if he were off one tooth it would be 14 to 15 degree past TDC 0 mark to get into a level overlap on number 6. If one can get a small level across and get a feel for how they are on 6 compression then you would compare in the overlap at the top of intake stroke. Probably best done right after a short run (1 minute)to make sure lifters are not pumped down?? (unevenly)
Last edited by Dodgem; 08/24/13 10:03 AM.
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Re: Timing issues
[Re: dnd0001]
#1489572
08/24/13 11:25 AM
08/24/13 11:25 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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Dist housing can be loose or snugged. Go to 20. Then forward (CW) to 16. Loosen housing (if tight). Line up the paddle. Snug the dist. As you know, Crank at #1 compression/rotor under #1. EDIT 1 tooth off is 15.6 degrees (360 divided by 23 teeth on crank gear) & I'm sure you got it dot to dot but the gears (one or both dots) could be mismarked but k.i.s.s. one thing at a time.
Last edited by RapidRobert; 08/24/13 12:11 PM.
live every 24 hour block of time like it's your last day on earth
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Re: Timing issues
[Re: dnd0001]
#1489573
08/24/13 02:15 PM
08/24/13 02:15 PM
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Joined: Mar 2008
Posts: 5,746 Ontario, Canada
Dodgem
master
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master
Joined: Mar 2008
Posts: 5,746
Ontario, Canada
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Cam should be degreed in even if you checked and rechecked the dots by turning over and check and check again the tolerances have always been suspect in cam fazing especially when one takes the stacking affect of all things being off a tad in the same direction. crank keyway, bottom gear keyway top gear dowel hole and cam dowel placement. Cam specs???
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