Cam timing- Powerpoint presentation

Here's a Power Point that I did on cam timing. The pictures load slow and it's kind of difficult to follow, but you get the idea.
http://www.theride.tv/ducati/CHECKING%20CAM%20TIMING%20ON%204%20VALVE%20DUCATI_files/frame.htm

I had lost this for awhile (got stuck in Cyberspace, I guess)--but it's back and I'm glad because many people have been looking for this kind of info.

I'll get it on my Knols too.

1998 DUCATI 748

COMPLETE REBUILD

748 Rebuild Complete!!!

It's finally done (just gotta throw a screen on it)...

748 Re-build

Some shots of the perfect fuel tank and cap!

I had three goals when attempting the rewiring project. 1. Modify the stock harness to work with the mono subframe. 2. Put back all the stock wiring and parts for the street. 3. Neaten up the wiring to hide most of it behing the frame tubes. I think I accomblished all the goals!!

748 Middle wiring harness.

Maybe it wasn't such a good idea to cut up the wiring harness!!! Gonna be a lot of soldering to get this back together!!

Anyone got one for sale???

OFF SET KEY IMAGE

Here you can see the off set. The key can be inserted either way (to advance or retard the timing) so make sure it rotates the cam pulley CCW, advancing the cam timing.

OFF SET WOODRUFF KEY

I had to advance the V Intake cam eight degrees of crankshaft rotation.
This Ducati off set key marked with 4 dots moves the pulley either way (advance or retard) 4 degrees on the camshaft.
Because the camshafts spin at 1\2 crankshaft speed this 4 degree adjustment equals 8 degrees at the crankshaft.
Make sure to use a new nut.

Here the bent pointer sits nicely on the helper (note: the washer I decided to glue in place)

But, alas…the washer fell off, and then the tool slipped off the shim and got stuck down in the recesses of the head and took me 10 mins. to dig it out.

SO…I ended up just using the “old” method!

Oh well, can’t blame a guy for trying.

Dial indicator with flexible holder and homemade aluminum plates. (top)

Mounted up on the Horizontal cylinder Exhaust valve..(bottom)

I've included this image to show how I've labelled all the pieces. I use paint sticks in different colors and Sharpies, plastic bags and tags to mark the heads, cylinders, camshafts, covers, etc. I note the RIGHT and LEFT sides and have a series of dash marks for the corresponding locations on reassembly. I also separate the two cylinders and heads and all the pieces so that I can't mix them up.
When most of the engine is disassembled like this it can get confusing with parts all over. But when everything is properly labelled it's like putting together a Ducati puzzle.

I find it easier to check valves with heads removed.

•Top rocker is stock, bottom is a reconditioned one.

•On the right is a rocker arm reconditioned by Guy Martin at MBP. Note the longer filled and resurfaced area.

My 1998 748 didn’t have an oil feed hole in the front (Horizontal) cylinder crankcase. I understand some models may have one.

These passages are for air cooled models that don’t have external oil lines like the SBK’s.

Work in a clean, organized environment

Fit each ring in bore and check the end gap

CLEANING PISTONS
FITTING NEW RINGS