Tercel4WD.com

For the record, I was running full synth (Castrol or Mobil1 75w90 )in my last Terc (worked nicely), and my current one had synth in it when I got it and it shifted wonderfully. Now I've got regular gear oil in. With the regular gear oil and the colder temps, shifting is a great pain from 1 to 2 and ...

How do you like that LED compared to an incandescent bulb Tom?

There are two wires going to the factory horn plug, one is green/red and couldn't make out the color of the other. Which wire goes to each part of the relay? 85 and 86, or does it matter? It does not matter (unless you bought diode-protected relays - probably not though). Also the diagram for my ho...

And here's dual shuttle valves. It's not a working diagram, but at least I know I won't be bothering to continue down this path: dual_shuttle_valve_not_finished.png No, I'm not trying to make a bowl of spaghetti here, and don't be confusing this with the vacuum diagram of your terc. ...wait a minute...

isn't that the '88 front end?

This is what I was thinking for an air shuttle valve. Possible downsides to this design are that it may get stuck in the middle, or it may settle into the middle after a short time. It may just want to hammer away wildly too. Who knows. shuttle_valve.png After looking at this, it might be better to ...

I'm skipping version 9 and 10, but here's 11: failure_11a.JPG We've got a ball & spring check valve on the water input again, and this time a looong spring and a valve which is a close fit up inside the brass fitting. Also a 1/8" restrictor plate at the other end of the long nipple by the t...

Don't quote me on this, but if it's not the switch, I think there's a trouble spot in the main wiring harness plug behind panel at the passenger's right foot. I just can't remember if it was for the front or rear dome light. In my case, it was obvious which terminal was not working form the nasty gr...

I think I mentioned before that I did a successful pull with an ordinary razor (Olfa) knife and plenty of liquid laundry soap to lubricate the blade. I did it in the summertime though. Just keep the blade soapy and keep making pass after pass on the same area until you cut through and move on. There...

Failure 7 is where I took #6 and oriented the venturi the correct way. I thought that was going to be the winner, but doing that made it worse. I'm still scratching my head on that one. (no pics) Failure 8 is similar. No garden hose restriction, expansion chamber, venturi, plus a home made backflow ...

this is hilarious. you're like a mad scientist working on this thing day and night, it seems. great creativity and determination. The device will be replicated. It will only cost $4000 in R&D. A mere pittance at 10x the cost of buying the real one. ...and I just noticed in the pics above that I...

Just realized your missing one piece. Don't know if it's part of the hammer process or just for the safety of the plumbing/hose, but there's a backflow preventer at the water inlet. I don't think it should be required for operation of the real deal, but it really is in line with the design... inter...

Holy diagrams Petros! I'm not sure where the first one came from, but I do recognize the second one from your link to the patent. So here's my 4th failure: failure_4a.JPG This is an upgraded rig to better simulate the sizes on the Hecat model. The tee fitting is now 3/8" NPT and the nozzle is n...

Here are a couple of mods I tried and failed with on my homebrew (not-)pulsator: failure_2a.JPG Moved the copper tubing back further in the tee. (Plus shaped the end a bit, but I don't think that really mattered.) I hoped to make the venturi suction stronger by doing this (which I think it did by th...

Apologies to the OP, I hope the homebrew ideas aren't too OT for this thread, but here's my first failure: failure_1a.JPG The parts list (as configured in the last two pics): Adapter - garden hose-female X 1/2" NPT-female Bushing - 1/2" NPT-male X 1/4" NPT-female (Weatherhead 3220-8-4...