knocking mustang 5.0

5150coupe · 12-14-2007, 07:42 PM

...that's right about the rotor needing to point to the #1 spark plug post. if the #1 post is pointing to the upper manifold bolt at 1 o'clock that is probably a good position to have enough room for timing adjustment, but really it doesn't matter as long as the rotor points to the # 1 post and you give the distributer enough room for movement.

5150coupe · 12-15-2007, 02:21 AM

i set everything as described, but still have the same issue. the only thing i could be doing wrong is maybe not getting the compression stroke, but i basically cranked the motor till i felt a surge of air and then set the timing marker to 0 degrees. all i get is a slight amount of backfiring. tomorrow i will remove the passenger side valve cover to make sure it is on the compression stroke by making sure the rockers are both at their lowest point.

5150coupe · 12-15-2007, 10:25 PM

found out that the spring on the throttle body was off, which solves the recent starting issue...knew it would be something like that. so now it is running and i can drive it but still have to set the timing to about 26 degrees to have a good idle, easy start, and decent power. since i can now drive the car i'm going to take it to a friend who has been a mechanic for about 45 years and specializes in mustangs. hopefully we will get the timing issue worked out for good. i will keep updating...

goodyear1984 · 12-17-2007, 01:59 AM

thats prolly it u will get it

5150coupe · 01-16-2008, 03:44 PM

resolution: damper/harmonic balancer needs to be replaced. the rubber on the outside of the damper is coming loose and moved a little. i basically just ran the car at high rpm, pinged it, and moved the timing down. after several repeats the pinging stopped and i will leave it this way for now. but the long term fix is going to be to replace the damper. the adhesive on the damper will eventually fail and it is fairly common for the rubber outside to loosen on a high mileage motors. be aware that the damper should be replaced asap if this happens to you since you may damage the motor if the damper comes off completely while driving.

goodyear1984 · 01-17-2008, 08:41 PM

im just telling you the way to line every thing up.if u want to see a diagram i will send u one

12-15-2007, 02:21 AM	#2
5150coupe Registered Member Join Date: Jun 2007 Posts: 28	Re: knocking mustang 5.0 i set everything as described, but still have the same issue. the only thing i could be doing wrong is maybe not getting the compression stroke, but i basically cranked the motor till i felt a surge of air and then set the timing marker to 0 degrees. all i get is a slight amount of backfiring. tomorrow i will remove the passenger side valve cover to make sure it is on the compression stroke by making sure the rockers are both at their lowest point.

12-15-2007, 10:25 PM	#3
5150coupe Registered Member Join Date: Jun 2007 Posts: 28	Re: knocking mustang 5.0 found out that the spring on the throttle body was off, which solves the recent starting issue...knew it would be something like that. so now it is running and i can drive it but still have to set the timing to about 26 degrees to have a good idle, easy start, and decent power. since i can now drive the car i'm going to take it to a friend who has been a mechanic for about 45 years and specializes in mustangs. hopefully we will get the timing issue worked out for good. i will keep updating...

12-17-2007, 01:59 AM	#4
goodyear1984 Registered Member Join Date: Dec 2006 Location: new york Posts: 482	Re: knocking mustang 5.0 thats prolly it u will get it __________________ 347 stroker all forged,arp everything,stud mains w/girdle,7qt pan,full roller, custom cam, aluminum heads swirl valves 5 angle valve job.quick fuel 750,areomotive pump,cobras w/nitto drags,and m/t et drags for the track, ford racing 373 gears,centerforce clutch,tko500,underdrive pulleys,bassani x-pipe,flowmasters ^best et so far 11.6 1.61 60ft coming soon 9sec et's 1992 mustang gt 2001 gmc 1500 4x4 78 century boat 92 skidoo

01-16-2008, 03:44 PM	#5
5150coupe Registered Member Join Date: Jun 2007 Posts: 28	Re: knocking mustang 5.0 resolution: damper/harmonic balancer needs to be replaced. the rubber on the outside of the damper is coming loose and moved a little. i basically just ran the car at high rpm, pinged it, and moved the timing down. after several repeats the pinging stopped and i will leave it this way for now. but the long term fix is going to be to replace the damper. the adhesive on the damper will eventually fail and it is fairly common for the rubber outside to loosen on a high mileage motors. be aware that the damper should be replaced asap if this happens to you since you may damage the motor if the damper comes off completely while driving.

01-17-2008, 08:41 PM	#6
goodyear1984 Registered Member Join Date: Dec 2006 Location: new york Posts: 482	Re: knocking mustang 5.0 im just telling you the way to line every thing up.if u want to see a diagram i will send u one __________________ 347 stroker all forged,arp everything,stud mains w/girdle,7qt pan,full roller, custom cam, aluminum heads swirl valves 5 angle valve job.quick fuel 750,areomotive pump,cobras w/nitto drags,and m/t et drags for the track, ford racing 373 gears,centerforce clutch,tko500,underdrive pulleys,bassani x-pipe,flowmasters ^best et so far 11.6 1.61 60ft coming soon 9sec et's 1992 mustang gt 2001 gmc 1500 4x4 78 century boat 92 skidoo

12-14-2007, 07:42 PM	#1
5150coupe Registered Member Join Date: Jun 2007 Posts: 28	Re: knocking mustang 5.0 ...that's right about the rotor needing to point to the #1 spark plug post. if the #1 post is pointing to the upper manifold bolt at 1 o'clock that is probably a good position to have enough room for timing adjustment, but really it doesn't matter as long as the rotor points to the # 1 post and you give the distributer enough room for movement.

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