VWDiesel.net The IDI, TDI, and mTDI source.
General Information => General => Topic started by: TylerDurden on April 07, 2013, 08:35:33 pm
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I was curious what the camplate shapes are in my IPs...
Here are some initial graphs:
(https://lh5.googleusercontent.com/-Rt-IMDOsseI/UWIm-wyfsEI/AAAAAAAABJc/6nJfhHkHpdQ/s800/g5522.png)
ECO peaks at 2.55mm, NA and TD peak at 2.17mm. (Interesting to note that the ECO camlobe is not symmetrical.)
To get this info without too much effort, I made an indicator strip (ribbon) to tape onto the timing belt.
It can be used on the bench:
(https://lh5.googleusercontent.com/-U7Of_aMFhII/UWIlo07fqjI/AAAAAAAABJI/WzRAvbUUlgo/s800/IMG_9261.JPG)
It can be used in the car:
(https://lh6.googleusercontent.com/-NZ0XKOgtzDM/UWIlpD9fxtI/AAAAAAAABJQ/aLpfc3S29Ko/s800/IMG_9264.JPG)
I use a magnet to hold a pointer (seal pick, brad, etc.) almost touching the ribbon at the zero-mark , when the IP is right at the point where the plunger starts to move, dial gauge in the timing port is at zero.
Turn the IP pulley a degree, take a reading. Repeat 90 times.
The ribbon is marked in degrees camshaft, each mark is 1.18mm from previous:
Belt & pulley diameter = 136mm. (136 * 3.14) = 427. 427 / 360 = 1.18
(https://lh6.googleusercontent.com/-I669bFGeF2U/UWIlfE8DXlI/AAAAAAAABI8/SdTTeHKEIJI/s800/degreeRibbon.png)
(Image not actual scale, actual image is PDF here: https://docs.google.com/file/d/0B-v9qgbEGAVPRTN1Ul93Y2w3VzQ/edit?usp=sharing)
I have found the HP laser printers are quite accurate.
Inital graph pdf is here: https://docs.google.com/file/d/0B-v9qgbEGAVPQ3p1VnNYZnVtT2c/edit?usp=sharing
I will revise the info with bosch ID numbers when I get some more mapped. I have a few pumps around here.
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Niiiiiiiice.
I have measured many 1.6 NA/TD around the 2.20mm mark as well. Never had an ECO in my hands (thanks for that info ;)), and I have measured a few AAZ pumps at 3.10-3.15mm.
I have measured a Peugeot 505 pump as well, but cannot recall the measurement off-hand right now. Less than the 1.6's iirc.
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You have an Eco pump man i traded it to you remember..
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It checked out to be a 9mm pump with a 1.6 cam lift of the ~2.20mm.
It is gone or I would verify that 100% lol..