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Location:
Adelaide and Queenstown T...
Registered:
September 2002
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18RG Conversion
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Thu, 14 November 2002 04:00
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I have to organise and get an 18RG into my RA28 in the next 2 weeks before I go to the Pilbara for the next 3 months.
Can someone please tell me Exactly what I need to do to the accelerator cables to the carbies for the install?
Everything else ie mounts, starter motor, coils, exhaust... is exactly the same right????
All wiring the same?
Can someone please email me some pics of their 18RGs in their RA23/8 engine bay so I can compare to what it should look like.
Please I need as much info as possible ASAP.
Should I replace clutch and pressure plate at the same time? how much would they cost to buy and is it worth it???
Thanks guys.
midge@engineer.com
Andrew
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Location:
Western Sydney
Registered:
May 2002
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Re: 18RG Conversion
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Thu, 14 November 2002 08:54
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The 18R-G bolts in no worries. I can't help with the accelerator because I put an injected RG in my RA23. The only things you may have to worry about are heater/radiator hoses, but they're easily sorted if you're close to a radiator shop. I think I used a commodore V6 heater hose to connect the heater tap to the back of the motor. It's got a tight s bend in it. There's no difference in wiring if you're putting the carb RG in. Just put it in and ask specifics if you come across any problems. As for the clutch, if you've got the cash, get a new one. Otherwise I wouldn't worry too much unless you're going to treat it harshly.
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Toymods Social Secretary
Location:
Sydney
Registered:
July 2002
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Re: 18RG Conversion
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Fri, 15 November 2002 02:44
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well i would help but i have twin 45mm webers on my 18RGU, so i dont know how the accel cable would be on yours....
but if u want a pic nonetheless... let me know ok
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Location:
adelaide
Registered:
May 2002
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Re: 18RG Conversion
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Fri, 15 November 2002 03:12
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sorry.. how do u mean it doesnt matter because u put an injected RG in yours? all RGs have a different throttle position than stock 18R-c, because the inlet is on the drivers side for the DOHC. Injected RGs have the throttle switch on the outside of the end of the big plenum thing with "EFI" badged across the top. How did you sort out this problem with Your accelerator cable? got pics?because im sure it may be a valuable bit of info for carbie swaps or EFI. a few people have told me u can use later corona or similar accel. setups, but im not exact sure if theres any difficulty in ripping the lever-stick thing off the stock engine bay and putting in a cable? The same with twin 45s, dont these still need a different accelerator/throttle cable than original? even if it may be differently positioned or actuated on the webbers i dont know.
Do u need a different coil with the twin-solex 18RGs? they have different dizzys im sure so it may need something otehr than 18rc variant.
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Location:
near chris and murray vic
Registered:
July 2002
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Re: 18RG Conversion
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Fri, 15 November 2002 03:29
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umm i didnt do the conversion myself, but the gut i bought my celica from just cut the lever in half, screwed the bit that goes to the carbies way further left, and clamped the two bits together.. dodgy i know, but it works 
yeh hope you get the picture of what im talking about 
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Location:
Toowoomba
Registered:
May 2002
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Location:
Gold Coast
Registered:
October 2002
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Toymods Social Secretary
Location:
Sydney
Registered:
July 2002
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Re: 18RG Conversion
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Fri, 15 November 2002 07:48
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only the 18R-GU had the throw-away solex's i belive. complete shit carbies.
exhaust manifold is different. i have a spare set of 18RG extractors sitting around here at home.
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Location:
Western Sydney
Registered:
May 2002
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Location:
Toowoomba
Registered:
May 2002
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Re: 18RG Conversion
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Sat, 16 November 2002 00:25
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my most humble apposlagies, i forgot all about this wqhen I got home. Here are two pics showing the mods you need to do for a linkage setup. The leg that travels down to the carbies I could not get a proper shot of where it links to the carbs but I put a drawing in to show that bit. And I have put adjustment holes towards the top of this bit too. Hope this helps you. BTW where the pivot it towards the middle there are bolt holes already there so no drilling reguired.
Please ignore all the dodgy bits (like the blue AND yellow paint) most of these I plan to fix over the next few months.
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Location:
Adelaide and Queenstown T...
Registered:
September 2002
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Re: 18RG Conversion
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Sun, 17 November 2002 22:40
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Ha, My RA28 is looking the same right now, blue body with yellow engine bay, it freaks me out every time I look under the hood, but not for long.
Thanks guys.
Just checking, does the 18RG still use the same exhaust set up past the extractors?
Witzl, can you email me a pic of the cable set up you have for the carbies, I might try the RA65 cable for the carbies.
I now just have to try to put it in I guess.
So much to do, so little time.
Feel free to impart any other pearls of wisdom,
Thanks
Andrew
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Location:
Adelaide
Registered:
June 2003
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Re: 18RG Conversion
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Mon, 23 June 2003 02:46
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Depending on what model 18rg you have and what carbies are on it you might have to do a little rewiring.
With our 18rgu conversion we had to rewire the choke heaters (late model carbies) and figure out a way to get the mixture control valve (I think that's what it is, the big ugly emission valve on the top of the cam cover) to work.
The choke heaters were easy, just extend the original wiring.
The emission vlave was a bit more difficult. It required some rerouting of the wires for the valve. The earth wire was extended and run onto a 3Y model Hiace vacuum switch. The positive wire was rewired to run from the choke heater cable.
If you have an early model engine with the early carbies you might not had to worry about this stuff but if not then it might help you get it passed inspection.
I still don't know whether our conversion will pass, we should get it checked in the next two weeks.
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Location:
Adelaide
Registered:
June 2003
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Re: 18RG Conversion
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Mon, 23 June 2003 02:49
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Oops, forgot to add about the throttle connections.
We basically made it from scratch out of 10mm steel rod, steel flat bar, a few nutsand bolts and a shitload of welding.
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Location:
Argentina
Registered:
August 2003
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???!!! i am able to rebuild carbys so any problems with this?