Hey group,
If this ends up being a duplicate message sorry. I just tried typing in my question and I think it got blown away.
I have an 89 22re truck and I need to be able to advance the timing quite a ways. Heres' why.... have any of you heard of wood gas? Well I built a wood gas generator for my truck, (yes the truck runs on wood instead of gas) have it mounted in the bed, made the needed mods to get the wood gas tapped into the intake, shut of injectors and fuel pump, etc. I have driven about 16 miles on wood so far. Wood gas is a lower, slower burning BTU fuel. For that reason the timing needs to be advance to make it fire sooner to maximize power. I have built a lever welded to a hose clamp clamped around the distributor controlled by a lawnmower throttle cable in the cab so I can rotate the distributor counter clockwise when running on wood and then I can move it back for regular gas. I replace the hold down bolt with a longer one and a tension spring.
Problem is with the hold down bolt starting out in the center of the slot I am limited on how far I can advance it. Can I jump the distributor gear one tooth (clock wise I am guessing) thus making the hold down bolt be to one end of the slot giving me full range of the slot to turn the distributor counter clockwise for a larger amount of advance?
Thanks for your time. I hope to hear some interesting ideas and input.
I chose a rather low HP to weight ratio truck with only being a 4 cylinder, but I have to keep pushing forward to try to hopefully be able to run faster than 50mph on my woodgas. Advancing timing is an important part of this.
If you want to talk in person just PM me for my phone number.
David S

 

Well you should be able to turn the dizzy gear a tooth before you stab the distributor. Do not mess with the timing chain, just the distributor dizzy gear.

Edit. When setting the timing on a 22re you are supposed to jump terminals before you set the timing. I don't know what all you have eliminated so this might not apply to you any more. Just throwing it out there. Lets see some pictures. Sounds like a cool experiment.

We help better with pictures.

 

What do you mean by jump terminals?
I basically have not eliminated anything. I have just done some wiring in order to be able to shut off the injectors and the fuel pump when running on wood. With the way I wired the switch in I still have fire no problem when I shut these off. The truck runs good on the wood gas but I know could do better if I could get the timing advanced.
I could put up a picture of the truck if I wasn't so computer illiterate to do it.
David S

 

What are you doing for a creosote scrubber??
That wood gas is loaded with nasty goo.

 

https://www.yotatech.com/forums/show...972&styleid=51

Try this thread. Around post 8-9 it give a pretty good explanation.
Hope this helps.

 

Millball,
I don't need to do anything for a creosote scrubber. I just have a drop box for settling out dry soot particles, and then an filter canister with open cell foam. A properly designed gasifire does not make the goo your referring to. It needs to be designed and insulated in such a way as to keep the reaction area hot enough to "crack" tars (goo) and turn then into the very fuel your after.
Thanks for your interest!
David S

 

So fishguy 77 or whoever can help,
are you saying even if I rotate the distributor that the ECU will compensate for my adjustments unless I jumper the timing diagnostic terminals? If this is the case then would I need to put a toggle switch in that line so when I want to run on wood and advance the timing and have the computer stay out of it I would just flip the toggle and rotate my distributor?
Thanks for you help!!!
David S

 

I don't think it's possible to keep the computer out of it and still get any automatic advance based on engine rpms. You would need a distributer with centrifical advance capability.