A bit stumped..
A bit stumped..
11-16-2015, 10:42 AM
#1
http://youtu.be/4_2VmonOY5k
Duncansport
11-16-2015, 10:42 AM #1Engine misfires badly around 3000. I thought it was due to not having an intake manifold but I've finished that up. Still same. Checked pump timing and inlet pressure, cam timing and all the usual stuff. Think it may be the advancer over advancing to early, though that seems a bit far fetched.
http://youtu.be/4_2VmonOY5k
11-16-2015, 11:02 AM
#2
(11-16-2015, 10:42 AM)Duncansport Engine misfires badly around 3000. I thought it was due to not having an intake manifold but I've finished that up. Still same. Checked pump timing and inlet pressure, cam timing and all the usual stuff. Think it may be the advancer over advancing to early, though that seems a bit far fetched.
http://youtu.be/4_2VmonOY5k
fuel pressure?
Sounds fine at idle.
W124 om606 HX40 finished and it's a beauty 450bhp/456ft-lbs
maxypriest
11-16-2015, 11:02 AM #2(11-16-2015, 10:42 AM)Duncansport Engine misfires badly around 3000. I thought it was due to not having an intake manifold but I've finished that up. Still same. Checked pump timing and inlet pressure, cam timing and all the usual stuff. Think it may be the advancer over advancing to early, though that seems a bit far fetched.
http://youtu.be/4_2VmonOY5k
fuel pressure?
Sounds fine at idle.
W124 om606 HX40 finished and it's a beauty 450bhp/456ft-lbs
11-16-2015, 11:17 AM
#3
(11-16-2015, 11:02 AM)maxypriest(11-16-2015, 10:42 AM)Duncansport Engine misfires badly around 3000. I thought it was due to not having an intake manifold but I've finished that up. Still same. Checked pump timing and inlet pressure, cam timing and all the usual stuff. Think it may be the advancer over advancing to early, though that seems a bit far fetched.
http://youtu.be/4_2VmonOY5k
fuel pressure?
Sounds fine at idle.
2.7 Bar, staying steady. Lots of black smoke however .
Duncansport
11-16-2015, 11:17 AM #3(11-16-2015, 11:02 AM)maxypriest(11-16-2015, 10:42 AM)Duncansport Engine misfires badly around 3000. I thought it was due to not having an intake manifold but I've finished that up. Still same. Checked pump timing and inlet pressure, cam timing and all the usual stuff. Think it may be the advancer over advancing to early, though that seems a bit far fetched.
http://youtu.be/4_2VmonOY5k
fuel pressure?
Sounds fine at idle.
2.7 Bar, staying steady. Lots of black smoke however .
11-16-2015, 11:31 AM
#4
87 300SDL OM606 swapped HE351VE 722.633 swapped, Crower cams, KM valvesprings
76 300TD custom lots of stuff
06 Mercedes CL65 AMG 619 WHP, http://TurboTims.com
Could it just not be warm enough to handle all that fuel yet. Does seem odd though.
87 300SDL OM606 swapped HE351VE 722.633 swapped, Crower cams, KM valvesprings
76 300TD custom lots of stuff
06 Mercedes CL65 AMG 619 WHP, http://TurboTims.com
11-16-2015, 12:10 PM
#5
(11-16-2015, 11:31 AM)TurboTim Could it just not be warm enough to handle all that fuel yet. Does seem odd though.
Naw. Hot cold, driving, boost...nothing seems to make a difference
Duncansport
11-16-2015, 12:10 PM #5(11-16-2015, 11:31 AM)TurboTim Could it just not be warm enough to handle all that fuel yet. Does seem odd though.
Naw. Hot cold, driving, boost...nothing seems to make a difference
whipplem104
11-16-2015, 12:24 PM #6If you hold it steady will it clean up after a bit? What about higher rpms?
11-16-2015, 12:43 PM
#7
(11-16-2015, 12:24 PM)whipplem104 If you hold it steady will it clean up after a bit? What about higher rpms?
No, if you gently approach 3000 -/+ 500 its starts to break up. IF WOT it just brake up more (as in the video)
I would think injector issues but it start great and idles smoothly, no smoke or drama.
I'm going to pull the injection pump timer and take a look
Duncansport
11-16-2015, 12:43 PM #7(11-16-2015, 12:24 PM)whipplem104 If you hold it steady will it clean up after a bit? What about higher rpms?
No, if you gently approach 3000 -/+ 500 its starts to break up. IF WOT it just brake up more (as in the video)
I would think injector issues but it start great and idles smoothly, no smoke or drama.
I'm going to pull the injection pump timer and take a look
11-16-2015, 12:52 PM
#8
I have had adv. mech fail and cause similar issues.
whipplem104
11-16-2015, 12:52 PM #8Well it is either the pump or the advance mech. Do you have one of those pulse testers for hooking up to the injection line. You can do live timing check with them. Super handy. A friend of mine had one years ago.
I have had adv. mech fail and cause similar issues.
11-16-2015, 01:03 PM
#9
(11-16-2015, 12:52 PM)whipplem104 Well it is either the pump or the advance mech. Do you have one of those pulse testers for hooking up to the injection line. You can do live timing check with them. Super handy. A friend of mine had one years ago.I've thought about getting one...but no, i don't have one
I have had adv. mech fail and cause similar issues.
Duncansport
11-16-2015, 01:03 PM #9(11-16-2015, 12:52 PM)whipplem104 Well it is either the pump or the advance mech. Do you have one of those pulse testers for hooking up to the injection line. You can do live timing check with them. Super handy. A friend of mine had one years ago.I've thought about getting one...but no, i don't have one
I have had adv. mech fail and cause similar issues.
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