Help Using my new Ferret

[sle2115]

So help me to undrstand this timing we do. I install my dampner probe in the holes closest to the water pump. Then I adjust my snapon timing lite to whatever I want. This usually is 9.5 DBTDC and I'm using the lower hole where a probe "could" fit because it has the mark on the tab. I hope this is correct... Calvin, Is this correct or anybody else with some timing background???

Are you using a luminosity probe or pulse? That changes the timing parameters. The sensor on the crank only tells RPM. It tells the meter when the mark passes, it must be very close, but not touching the balancer. Then you dial in the offset you want (8.5 or whatever) and attach the "other" method of measuring the actual timing. Pulse must sense pulses to the injector, luminosity must be installed in the proper glow plug position. Once everything is hooked up, wires secured so as to not be the fans lunch, fire it up. Run the engine up to RPM spec (2000 for Pulse IIRC) and see what the reading is. Advance/retard the pump to get the reading you want. I used specs on my truck, it is NA, fuel screw normal and it runs great. I've moved it around a little, but it never ran better, and often ran MUCH worse.

What meter are you using? If it's snap on or rotunda, I've used it, but I'm thinking you have something else. I've had four 1480 series Snap Ons, two 480 series and three or so rotunda's. My favorite being the 1480 with a Mac/Ferret/Snap on Pulse adapter.

 

[EMD_DRIVER]

Wonder what I should do if I'm running 100% WMO? Any ideas? Presumably further advanced as well?

At the 2008 rally, Mel checked the timing on my 87. I was running 70-90%WMO at the time and the timing was around 10 BTDC or so. He said that was where it should be, for WMO. He was a bit disappointed, when he found out that I wasn't retarded at all

 

[sle2115]

Hook the Ferret to the appropriate IP to injector line (number 1 cylinder). Set your timing light's advance to the setting you want to use, 8.5 being the factory spec., attach the light to the Ferret pulse adapter, and start the truck bring it up to RPM (2000 IIRC). Look at the timing mark on the balancer in comparison to the timing indicator on the timing cover. Then adjust the IP so they are lined up. This means the timing pulse is set to the degrees offset on your timing light.

 

[icanfixall]

I'm using a Kent Moore Tach N Time J33300 meter and a Snapon MT1241 timing lite. I have found the information I needed and I have been doing my timing the correct way. I just got confused about the two differant locations for the dampner probe....

 

[sle2115]

I'm using a Kent Moore Tach N Time J33300

Yeah, not used that one...yet! At one point, I was buying the others with missing pieces and putting parts from two or three together, then testing them. Just kept track of what I had in them and passed them along. Never had one open for a fix for anyone else though, but I've seen the insides of the two Snap On units.

 

[mankypro]

Except for finding someone to run the engine at 2k rpm it's as easy as pie to do with the ferret. So if I was to time it at 850rpm instead of 2k would timing be retarded or advanced at 2k?