ev13 cam problem
Tourer
Joined: Jun 2021
Posts: 303
Likes: 146
From: Az
Seems to point to a timing issue. Maybe try a very slight change of advancing then retard to see if there is any difference.
Seasoned HDF Member
Joined: Apr 2011
Posts: 6,186
Likes: 2,135
From: W. Texas
With all you have done and seemingly ck'd and re ck'd you might consider going back after cam.
If the gear was already installed on the cam maybe they missed it.
With the exception of 1 cam we have transferred the original gear to the new cam.
What few cams I have done and or helped with the mark on the pinion was troublesome to see and know it was just right.
best of luck WP
HDF Community Team
Joined: Dec 2005
Posts: 5,441
Likes: 2,637
From: NC USA
Anytime you change a cam, the index mark you made on the timing sensor/nose cone will not be correct for proper ignition timing, 99% of the time.
About 1800 rpm is where the ignition module transitions from full advance to lower timing depending on the vacuum present at the VOES. If the hose is leaking, pinched or unhooked, or the wire was left un-hooked or the ground wire isn't contacting, the ignition module will "jump" from full to lower timing.
You must set ignition timing with a timing light, but I'd recommend you check out the VOES for proper operation before doing so.
About 1800 rpm is where the ignition module transitions from full advance to lower timing depending on the vacuum present at the VOES. If the hose is leaking, pinched or unhooked, or the wire was left un-hooked or the ground wire isn't contacting, the ignition module will "jump" from full to lower timing.
You must set ignition timing with a timing light, but I'd recommend you check out the VOES for proper operation before doing so.
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Intermediate
Joined: Jul 2021
Posts: 31
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From: greece
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Intermediate
Joined: Jul 2021
Posts: 31
Likes: 6
From: greece
Ive benn searching for a timing light in vain...these things have disappeared here in crete... So i changed the timing by hand giving it some advance and guess what....problem solved!!!! No more buckin i will try sometime to time it the proper way, but till then im verry happy the way it rans now. Thanks everybody for the help!!!
