4.6 stroker distributor question

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blu3fan
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4.6 stroker distributor question

Post by blu3fan »

hey guys.
so I am a little stumped.
I am running comp cams extreme cam - +3 timing.
my distributor is set about 1cm past post one at #1 TDC
by all the research I'm doing it should be 1cm before spark plug #1 post on the cap.
can someone tell me why my motor will just crank forever when I set it to the "correct" timing ?
bad cps ? map ?
other symptoms. the car in gear randomly revs to 1300rpm. usually happens over speed bumps

otherwise she is running rich.
I originally figured my cam is too intense. but that doesnt quite make sense.
thanks for any insight.
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SkylinesSuck
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Re: 4.6 stroker distributor question

Post by SkylinesSuck »

Your research is only telling you the ballpark position it should be in to fire it up and drive to someone with the ability to sync your injector timing. Sounds like that might be your issue. That and/or being off by a tooth on the dizzy.
blu3fan
I made it to triple digits!
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Vehicle Make: cherokee
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Re: 4.6 stroker distributor question

Post by blu3fan »

could this be done using a noid and timing light settup ?
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SkylinesSuck
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Re: 4.6 stroker distributor question

Post by SkylinesSuck »

The only way I know for sure is the DRB scan tool from Chrysler. It's hard finding a dealer that had one and it's willing to play ball. They also like to charge an entire hour for something that takes 10 min. I had to call 3 different dealers in my area to find one willing to charge me only $25 or something to set it.
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SkylinesSuck
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Re: 4.6 stroker distributor question

Post by SkylinesSuck »

And what do you mean your cam is +/-3 degrees?
blu3fan
I made it to triple digits!
I made it to triple digits!
Posts: 178
Joined: June 23rd, 2010, 11:05 am
Stroker Displacement: 4.6
Vehicle Year: 1992
Vehicle Make: cherokee
Vehicle Model: jeep

Re: 4.6 stroker distributor question

Post by blu3fan »

Im running yella terra 1.7

and currently K68-231-4 is the cam.
http://www.summitracing.com/parts/CCA-K68-231-4/

springs and retainers
Mopar Performance spings P5249464 with Mopar Performance retainers P4452032

stock pushrods.

arp head bolts.

I might be wrong. but I was 99% sure this cam said it advanced the timing by 3degrees
now that im looking again on jeggs Im not so sure.
blu3fan
I made it to triple digits!
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Posts: 178
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Stroker Displacement: 4.6
Vehicle Year: 1992
Vehicle Make: cherokee
Vehicle Model: jeep

Re: 4.6 stroker distributor question

Post by blu3fan »

your comment about the distributor being off a tooth might be correct.
Im actually going to test this now.
I removed it and put it back in last year.
maybe that has been all of this.
blu3fan
I made it to triple digits!
I made it to triple digits!
Posts: 178
Joined: June 23rd, 2010, 11:05 am
Stroker Displacement: 4.6
Vehicle Year: 1992
Vehicle Make: cherokee
Vehicle Model: jeep

Re: 4.6 stroker distributor question

Post by blu3fan »

Tested.
im not off a tooth.
or so I think....
It started and ran. it was roaming in rpm.s
then died. and would not start again.
changed the timing like 50 times.
wouldnt start.
changed back to my 4 degrees after Cylinder 1 at tdc.
VIOLLA starts right up.
I think my issue is elsewhere of timing.
jsawduste
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Re: 4.6 stroker distributor question

Post by jsawduste »

If the cam is ground +3 as you mention and your positioning the dist. within the "ears" then is +3* off.

Cut the ears off. Make it run and twist the dist back and forth. The engine will tell you where it wants to be.

Just make sure your on tooth with #1 before you start.
blu3fan
I made it to triple digits!
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Posts: 178
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Vehicle Make: cherokee
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Re: 4.6 stroker distributor question

Post by blu3fan »

Ill get some pictures of this on my day off and maybe someone can tell me if I am off.
My gut and car knowledge tells me where it is currently is wrong.
the car itself wont run where I feel is correct.


^ ears are cut off the distributor.
http://www.angelfire.com/my/fan/dist_index.html
I found this.
Im going to compare.
blu3fan
I made it to triple digits!
I made it to triple digits!
Posts: 178
Joined: June 23rd, 2010, 11:05 am
Stroker Displacement: 4.6
Vehicle Year: 1992
Vehicle Make: cherokee
Vehicle Model: jeep

Re: 4.6 stroker distributor question

Post by blu3fan »

Re-timed it according to that angelfire article.
shes running better now.
no more backfiring/hiccups.
I must have had the distributor off a bit.
cam is still way too much for the 1.7's
going to remedy this in the summer through Russ.
Build log to come.
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Cheromaniac
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Re: 4.6 stroker distributor question

Post by Cheromaniac »

blu3fan wrote: December 18th, 2018, 6:46 pm Re-timed it according to that angelfire article.
shes running better now.
no more backfiring/hiccups.
I must have had the distributor off a bit.
Glad my article was helpful. :D
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SkylinesSuck
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Re: 4.6 stroker distributor question

Post by SkylinesSuck »

:cheers:
blu3fan
I made it to triple digits!
I made it to triple digits!
Posts: 178
Joined: June 23rd, 2010, 11:05 am
Stroker Displacement: 4.6
Vehicle Year: 1992
Vehicle Make: cherokee
Vehicle Model: jeep

Re: 4.6 stroker distributor question

Post by blu3fan »

I figured I should update this.

I figured out the whole issue this morning.
got in the car.
turned the key.
she was deader than dead.
popped the hood.
there is corrosion on the wire between fusebox and battery.
this explains a lot.
I musta bumped it working on the distributor. I bet thats why it ran again.
woohoo me !
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SkylinesSuck
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Location: Northern VA

Re: 4.6 stroker distributor question

Post by SkylinesSuck »

So that for sure fixed it?
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