Looking for recommendations on what to do with hurt cylinder
- Thread starter thatguy69
- Start date
thatguy69
New member
That's definitely over my head, I'm wishing I would of measured blowby with my digital manometer before hand so I had better numbers to go off of for future referance. Oh well
thatguy69
New member
That's pretty sweet, definitely save the diesel guys some time.
Powerstroke Cowboy
Boost is energy held back
That's is sweet for sure. Generally I go by sound first, then I do a normal compression test if something sounds off. If it's close the ear does not always pick it up though.
biggy238
Active member
??? My first time was in a Detroit engine. The trick is plotting crank angle on a non electronic engine. Might not be too bad with a photo-optic pickup, get each cylinder to tdc and place a reflector on the damper for each cylinder blah blah.
Might not even need that.
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Might not even need that.
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1320Cummins
2G Collector
I was kinda thinking something along the lines of a hall effect or magnetic sensor to indicate #1 TDC and monitor it on another scope channel overlaid on the amp probe trace. Could probably run this off of the factory cam sensor. Right?
1320Cummins
2G Collector
Tried to edit previous post to more thoroughly explain my thoughts, but passed the 30 minute peasant status edit window...
I was kinda thinking something along the lines of a hall effect or magnetic sensor to indicate #1 TDC and monitor it on another scope channel overlaid on the amp probe trace. Could probably run this off of the factory cam sensor. This should narrow a problem down to being within one or both of the companion cylinders?
With a 12 valve I guess youd need to attach a high spot to the OD of the crank damper with the leading edge set at #1 TDC in relation to the sensor? In that scenario a sensor mounted to something like a indicator mag base and stick that on the oil pan oughta work? Just need to disregard the #1 exhaust stroke reading. How far off am I???? lol
I was kinda thinking something along the lines of a hall effect or magnetic sensor to indicate #1 TDC and monitor it on another scope channel overlaid on the amp probe trace. Could probably run this off of the factory cam sensor. This should narrow a problem down to being within one or both of the companion cylinders?
With a 12 valve I guess youd need to attach a high spot to the OD of the crank damper with the leading edge set at #1 TDC in relation to the sensor? In that scenario a sensor mounted to something like a indicator mag base and stick that on the oil pan oughta work? Just need to disregard the #1 exhaust stroke reading. How far off am I???? lol
biggy238
Active member
I think you're on it, I was just trying to home brew instead of using a scan tool, although mapping on a tool would be better.
A photo-tach would work.
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1320Cummins
2G Collector
Gotcha.
How would one go about analyzing the starter amp draw in a home brew sorta scenario?
biggy238
Active member
It would still have to have an amp clamp with an output I would think.
I was just meaning something Arduino flavored and run the outputs on the monitor or a screen HAT on the Arduino.
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Mark Nixon
No Savior among the flesh
My ears tell me when there's a dead hole.
Even if it's between someone else's ears. LOL
Mark.
Even if it's between someone else's ears. LOL
Mark.
Powerstroke Cowboy
Boost is energy held back
Red Sleeper
Active member
Drop the pan, pull the head, remove rod and piston, wrap crank in wraps, dingle ball the hole, new rings, rotate engine a few times to check work, assemble remaining parts. Drive it.
4x4dually
Moderator
thatguy69
New member
I can appreciate the Christmas enthusiasm