For the love of a tractor engine: The life and times of the 18R-G

[The Witzl]

im only reporting what was said in another thread by a couple of people that i respect. I personally have no experience withe Tighe cams.

As for the costs of setting up EFI... its not all that must more expensive, but it saves you in fuel economy within a month or two

[hosking1991]

hey guys would the carbs of a 2tg fit on an 18rg maifold

[Rodger]

Luke

Yes and no.

Yes they will bolt on to the 18R-G manifold.

Solex/Mikuni40/44, Weber and Dellorto sidedraught carburetors have the same bolt pattern.

And No. Unless you have linkage (18R-G style) to suit the wider spacing between the two carbs then the 2T-G linkage will not allow them to work without modification.

However they certainly will run as jetted, as Toyota have used very similar sized jetting for both engines.

Regards

Rodger

[Ren_RG28]

Hey..

Anyone know if Toysport's cams are regrinds or billets?

Despite their controversial rep, I'm seriously considering ordering some of their 10.5 comp. 92mm Venolia pistons and 304/288 cams for my 18RG rebuild

Will try emailing them for a response. If you don't hear from me in a year, call the cops.

Ren.

[RAd28]

ren... let me know when you place an order, i'm up for some valves, and seats... probably go local cams though...

[twentyEight]

Despite their controversial rep, I'm seriously considering ordering some of their 10.5 comp. 92mm Venolia pistons and 304/288 cams for my 18RG rebuild

Go for the 12:1 forged pistons from ToyGarage... (http://www.toygarage.com/index2.html)

[Ren_RG28]

Hi everyone,

Just letting you know I've started up my own 18R-G Rebuild thread so I'm not polluting this thread anymore Check it out:

http://www.toymods.net/forums/showth...339#post538339

Thanks,
Ren.

[Spectre]

Just wondering where I could get some 18RGEU piston rings from? From my searching I hear they are anour $55-100 for a set. Can you get them off the shelf to suit, or do I need to order from oversea's?

[o_man_ra23]

Bryce,

18R-C rings fit. You can get them in plain steel or chrome. plain steel will wear in quicker and wear your bores less, but they will need replacing earlier (100,000kms or more). Chrome rings will take the pressures of boost. I used to run ACL plain steel rings in my 18RG without problems (9.7 compression pistons, 40thou milled head)

[Omegaman]

Not sure, but aren't the18rgeu piston rings thinner than other 18rg's.
I remmembe getting mine machined to suit standard 18r's so can be easier located.

[RAd28]

been doing some thinking lately about sump baffeling, and trying to figure out the best (most effective and easiest) way to do it, got a few ideas, and i'd appreciate comments on each.

1. piece of 4" exhaust pipe welded into the sump to surround the pickup, and act as a surge tank of sorts, would obviously have to have lots of small holes drilled into it to allow oil to flow in freely, but to limit oil out... perhaps drill only on the right side of the pipe (since right hand corners are the biggest problem).

2. sump gate setup... just a simple one, with a fixed piece welded in (laterally) on a small angle (leaning to the right) and have a flap hinged at the top with a counter weight on the bottom, so that as the vehicle takes a right handed corner, the gate closes up and prevents/limits the oil flow to the left side of the sump, but once the car has straightened up again the gate opens...

3. foam... well... coarse steel wool or something similar to slow down the sloshing of oil around the sump... could be set up any number of ways, a for example, a fence around the oil pick up, or almost fill the sump with steel wool leaving only the oil pick up free... biggest problem i see with this is the possibility of metal getting picked up and sent through the engine...

i'm incline to think #1 would be the easiest, but just wondering if anyone else has suggestions to bring to the party...

cheers

[Steve M]

RAd28 - just keep in mind that with some baffle designs, however effective the baffle is at keeping oil from leaving the pickup, it could be equally as effective at keeping it from returning to the pick up.

Personally I'm going for the corona, more centred pick up, or a custom pickup that is truly centred.

Omegaman - you're right there, the 18RGEU pistons use 2x 1.5mm compression rings, while the 18RG/18RGU pistons use a 2.0mm top and 2.5mm second compression ring. Both pistons use 4.0mm oil rings

[RAd28]

RAd28 - just keep in mind that with some baffle designs, however effective the baffle is at keeping oil from leaving the pickup, it could be equally as effective at keeping it from returning to the pick up.

exactly what i'm concerned about and why i'm after opinions...

Personally I'm going for the corona, more centred pick up, or a custom pickup that is truly centred.

i didn't know there was different oil pickups in different models... care to elaborate for those uneducated of us??

[floppy]

Rad,

My cousin is going to be modding my 18rg one (hopefully in the next month).

First up I am trying to find if another oil pickup arm can be used so that I can get the thing more centred and a bit deeper.

If I can find something to sort that out, he is going to be adding a little more depth and also make it a bit wider.

We are still debating about whether to do the swing arm with stoppers or more plates with reasonable holes will be best.

So far the vote is for the swing arm with stoppers as we think the oil will still flow the best with this system without too much restriction.

He has also mentioned making me a windage tray but I am not sure if that will do as much. My particular problem was not getting enough oil picked up when I killed the beast.

So does anyone know if another oil pickup can be used to try and make it more of a centre pickup? Or at the least extending it so we can submerge it more with the additional depth mentioned above.

Dave

[floppy]

Ahh just after posting I saw that Steve mentioned a corona one!! Would love to know the model we can use.

And one last thing, are there better quality bigend bearings available for our beloved twin cam?

A friend of mine said he used to buy vandervelt(?) who used to do a better quality set. I haven't looked very much yet, but I pretty much only need the bigends and rings to get the rebuild under way.

Dave