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Location:
Orange N.S.W
Registered:
October 2003
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 18r-g into ra23? need help
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Wed, 22 October 2003 04:04
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hey dudes.
i just found this site n i gotta say it rules. Now i got a ra23 with a shot 18r-c can hardley pull its own weight, now what i wanna know is if the RG will slip right in or not, cuz me n a mate are just gunna pull a back yarder, plus if i'll have to change da box or not. just 0ne more thing anyone kno where i can pick up a RG reasonably priced near the Orange, N.S.W area.
thanks alot guys appreciate it. 
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Location:
Adelaide
Registered:
September 2003
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Re: 18r-g into ra23? need help
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Wed, 22 October 2003 04:17
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The 18R-G will slot in about as well as any engine can.
Fuel line is in a different spot, even seem to remember that the throttle linkage is either the same or almost. Save for the exhasust and modifying the top radiator hose, it is as simple as that.
Did it eons ago in my RA23 and it was glorious.
Ended up with the following mods ;
- 9.7:1 Toyota pistons
- 36mm chokes for the Solexes
- Extractors + 2" system
- Rear disc conversion from ST142
- 4.1:1 diff centre from Corona RT104
- Yamaha head fitted with minor porting
- lowered springs + koni shocks
- Later model front brakes from Corona
- 27mm front and 18mm rear swaybars from K-Mac
- 15x7" Performance mags with 205/50x15 tyres
I had it for 8 years before selling it to the brother in law, and he had it for another 6 years. I think it had done about 440,000km by the time it was reduced to parts. Plenty of hillclimbs and trackwork as well
Do it, it was a great little car
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Location:
Orange N.S.W
Registered:
October 2003
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Re: 18r-g into ra23? need help
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Wed, 22 October 2003 05:35
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hey thanks heaps man,
that should help me out alot, just another couple of things, will i need to adjust the engine mounts to accomadate for the wider head on the RG, would i have to make any adjustments to convert the std celica 5sp to a w55.
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Location:
Northwestern Sydney
Registered:
August 2002
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Re: 18r-g into ra23? need help
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Wed, 22 October 2003 05:41
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No the 18R-G shares the same block as the 18R-C so it is a straight bolt up to the mounts and the gearbox.
from my exp putting the engine in P.O.P,
find some extractors to suit, get exhaust done.
rig up the fuel lines (pretty easy)
set up the throttle links (cable or bar works)
tune twin carbies
and let her roar..... 
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Location:
Canberra
Registered:
December 2002
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Re: 18r-g into ra23? need help
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Wed, 22 October 2003 05:47
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Lambolica what you end up doing with your rg how bad did it end up being?
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Location:
Northwestern Sydney
Registered:
August 2002
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Re: 18r-g into ra23? need help
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Wed, 22 October 2003 06:12
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Lambolica what you end up doing with your rg how bad did it end up being?
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I think you mean bbaacchhyy, My engine went from 18R-GEU to 18R-G back to 18R-GEU and is still going strong (pending some current rattling issues that may or may not be the engine)
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Location:
Canberra
Registered:
December 2002
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Re: 18r-g into ra23? need help
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Wed, 22 October 2003 06:17
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AHH ok no worries i just remember a post a few weeks back about a rg that went splat i thought it was you.....obviously not.
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Location:
Northwestern Sydney
Registered:
August 2002
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Re: 18r-g into ra23? need help
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Wed, 22 October 2003 06:28
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Ahhh.. possiblly mine I've yet had the time to look at it in any depth (but all things point to a gearbox/clutch problem)
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Location:
Canberra
Registered:
December 2002
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Re: 18r-g into ra23? need help
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Thu, 23 October 2003 01:18
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Stuffed box or slipping clutch?
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Location:
Brisbane, QLD
Registered:
February 2003
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Re: 18r-g into ra23? need help
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Thu, 23 October 2003 01:57
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bit off topic
whats the economy difference between 18r-c -> 18r-g -> 18r-geu?
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Toymods Social Secretary
Location:
Sydney
Registered:
July 2002
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Re: 18r-g into ra23? need help
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Thu, 23 October 2003 02:27
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18r-c and 18r-g are almost on par.. i'd say the 18r-g wastes a little more juice though.
From what i've heard the 18r-geu is a lot better on fuel also!
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Location:
Brisbane, QLD
Registered:
February 2003
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Re: 18r-g into ra23? need help
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Thu, 23 October 2003 02:31
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any estimated or known km\l(or l per 100km)?
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Location:
Northwestern Sydney
Registered:
August 2002
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Re: 18r-g into ra23? need help
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Thu, 23 October 2003 02:49
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In the 18r-c I was getting about 350-380k's to a tank
In 18R-G form was getting about 280-310k's to a tank
In 18R-GEU form it is getting 370-430k's to a tank
If both the RG and R-GEU were tuned properly I'd get a little better econmomy (the 18R-GEU is idleing around the 1800rpm mark)
Jason, a few people who have heard the knocking noise seem to thing that I've got 1 of the following problems
1. the clutch itself has lost a spring and is floating in the housing..
2. the input shaft bearing is gone and is floping around on the shaft
3. the clutch housing is loose
or
4. there is still that person who thinks it is a rear engine bearing gone 
With any luck I'll pull off the gearbox this weekend
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Location:
Canberra
Registered:
December 2002
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Re: 18r-g into ra23? need help
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Thu, 23 October 2003 03:27
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Good luck with it anyway i hope it turns out to be not to bad
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Location:
Perth, Western Australia
Registered:
June 2003
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Re: 18r-g into ra23? need help
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Thu, 23 October 2003 13:00
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Hey, CELICA_BOY_666 i just finished a 18r-c 18r-g conversion.
Im in perth, but there are a couple of things i thought i might mension that i had to change...and things that might come in handy. THe throttle linages are COMPLETEly different but the fuel line is the same (sorry bbaacchhyy.
If you need any help with the linkages i have pictures and diagrams i can show u, of how i built my new linkages using the originals. PM me if u need.
Other points-
- Make sure you check the thrustbearing and clutch before you put the new engine in, it will save you alot of trouble and money later down the line.
- dizzy has to be rewired, original lead doesnt reach the new dizzy position.
-Do not let your friends tighten your rocker cover - aka my mates are absolute dum ****s.
Yeh, and good luck with hte conversion
Steve
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Location:
Orange N.S.W
Registered:
October 2003
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Re: 18r-g into ra23? need help
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Fri, 24 October 2003 03:27
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cheers steve man.
those pics of the throttle lincage would be sweet,how easy do u recon the conversion is, cuz its just gunna be me n a mate doin a backyarder he's a 2nd yr apprentice car dr n im a 1st.
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Location:
Northwestern Sydney
Registered:
August 2002
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Re: 18r-g into ra23? need help
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Fri, 24 October 2003 03:33
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I'm a computer geek....
Took me two days total on my own...
once I had everything I needed.
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Location:
Canberra
Registered:
December 2002
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Re: 18r-g into ra23? need help
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Fri, 24 October 2003 03:58
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Last one i did i think i had the rc out rg in in a day and running needed a good tune and valve shims done but still ran (just)
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Location:
Perth, Western Australia
Registered:
June 2003
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Re: 18r-g into ra23? need help
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Fri, 24 October 2003 07:30
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Yeh, look ill email them to ya, the conversion was easy...
slipped straight in, same gearbox and all. The linkages took time, but i rather linkages than cable myself.
Im a 15yr old and this is my first project car that i started 1 year ago now. But im a hands on person, so im not sure.
you wont have any problems belive me. If you do its only small simple things i guarantee.
Steve,
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Location:
Rocklea qld
Registered:
February 2003
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Re: 18r-g into ra23? need help
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Fri, 24 October 2003 10:52
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for the accelerator all you do is get a cable out of a vh commodore and turn it around and it works like a charm. Also some of the rg,s have two wires off the distributor like mine did(very rare though) so u need to look out for the that.
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Location:
Townsville North Qld
Registered:
June 2003
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Re: 18r-g into ra23? need help
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Fri, 09 January 2004 11:05
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My ra23 went from 18RG to 18RC to 18RG again. for the c to g conversion i had to go to 8mm fuel lines, also ended up with electric fuel pump, put a generic $14 cable in for throttle, used same box, the clutches are the same, mine already had extractors but you can buy pacemakers to suit them, contact your local exhaust place for that. The fuel lines are only really different from the fuel pump onward, as the standard pump is located on the same place on the block. I used the same top radiator hose, just had to twist it around a bit. blocked off the heater hoses (dont need that in nq) but the engine mounts are the same, make sure you get an rg with a rear pickup sump. otherwise the lead to the dizzy was the only other problem. You can buy top gun ignition leads from autobarn specifically for an 18RG for $44, but i had to replace my coil to dissy lead with a shorter one.
have fun and hope you go through with the conversion.
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