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

[TA-022]

possibly EFI brace point?

Not sure ive noticed that on my motor...will investigate in the morning.

[Damo82]

That was my first thought but its a 230 head which is an early 18RG one....

[barned01]

interesting
just went out in the cold and had a look at the 253 head and the 270 head and neither of them have the little tapped lug i can see in your picture.
so that must mean that something wasn't required in a later revision
is it possibly something that mounts on it from the early 18rg induction to the later 18rg induction (sorry i don't know the mikuni/carbie/solex thing but might it haave been for one of those to mount securely to)?

[TA-022]

LINKAGE! Were all too used too our nifty cable conversions.

/homer voice: "I am so smart! S M R T ! "

[Damo82]

Freaking genius!! Considering I am running cable I shall be filing that little bugger off ASAP. At least that clears that up.

+rep for you my friend.

[pilot]

Can´t you just don´t use the balance tube?

[Damo82]

If I don't use a balance tube isn't that going to make it difficult to balance the carbies and affect fuel consumption?

[TA-022]

well im 99% sure of it. ill check mine at roughly 9am adn post back ... might wanna find out 100% before you file it off.

The Witzl should know all things 18rg... just rename the thread to "OMG! 800HP 18RG"
he'll be in in a flash .lol

[pilot]

Is that "balance tube" really for that purpouse? (balancing). I thought it was just for getting oil fumes into the engine from valve and crank-case zones.

I changed from crabies to ITBs and forgot about it

[TA-022]

on 2nd thought the other heads dotn have it so it cant be a major issue this tab.

[Damo82]

I'll wait till I hear from one of the resident experts regarding the balance tube.

In relation to filing the tab off, I was going to be using one of the 250 heads which doesn't have that tab (but it's stuffed) so I can't see it being an issue considering I am running a cable throttle. I don't have anything that needs to bolt to it either.

[Screamn_Sleeka]

What is this balance tube you are refering to? anyone got a pic?

[brett_celicacoupe]

[brett_celicacoupe]

i posted this in another thread but its interesting. out of the TTR RA20 rally spec celica.

im 95% sure its an RG, what makes me doubt it is the thermostat housing position

[Screamn_Sleeka]

The thing sitting on the intake manifold?
wtf does that do?
Ive got 42mm dcoe's on a 18rg manifold that i intend to use, but it has nothing like that, neither did the 2tg manfold the webers came off.