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

[andrewzuku]

Hopefully you're not all sick of me yet...

The oil squirter bolt/nozzle for the timing chain was snapped when I bought my engine. The previous owner plugged it with a screw. So now my precious chain guides aren't being lubricated properly.

Being the 18R-G noob that I am, I didn't notice until after the engine was together, and I still haven't replaced it with the new squirter I got from stidnam.

Is there a way to get the snapped-off end out without dropping metal shavings etc into the engine? (an easy-out doesn't work).

Should I just accept that the motor has to come out

[Willofan]

You could try stuffing lots of oily rags (dry rags are not as good) in there and a use a strong magnet close by to attract the filings while drilling and then keep swiping the magnet around till you get it all, you only need to use a 5 or 6mm drill then use a bigger easi-out, with the heat generated, this should come out easy.

Failing that, it is head off at least

[MorGo]

Get an left-hand drill..Hang ring magnet (from some old loudspeaker) around the stud and drill away.Use low rpm and push hard and the remains probably screw out nicely.

[andrewzuku]

Thanks for the suggestions guys. I'll give that a go this weekend.

Meanwhile... I've managed to get the 2T-G + 18R-G Valve Timing Adjusting Guide (SST 09248-27010) as a .DXF file from Foxau2. He's given me permission to re-host it

It's also known as the 2T-G or 18R-G "Cam Alignment Tool".



18R-G_Valve_Timing_Adjusting_Guide.zip (64.7 KB)


The .ZIP file contains

• Foxau2's original drawing as a .DXF
• a stripped down version without text etc as a .DXF
• An .AI Illustrator file
• A .PDF

I'm waiting on a quote from a local waterjet cutting place. foxau2 was selling these for $50 USD in 1/8" (3mm) stainless, and $40 USD in mild steel.

I'll let you all know how much it ends up costing me.

[RA35GT]

I love you man.

[andrewzuku]

I was reading through this entire tractor engine thread, and saw ra_28 was planning on doing exactly this. I contacted him, but his tool is in Qld while he's in WA. He put me onto foxau2 on 1stgencelica.com selling copies.

I got a copy of the DXF from foxau2, and he's giving me permission to share it

[Omegaman]

Just a thought.
Wouldn't these Adjust guides be useless 30 yrs later.
I mean after chain stretching and worn guides, also the fact that most std cams now have a few degree's of adv or retard.
It would be hard to use this guide and get things right, without having brand new chains etc.

[andrewzuku]

I'm not sure. They should still be able to get the cam's notches at exactly 12 o'clock.

Unless they've been reground, shouldn't the standard cams be set there?

[ra_28]

Just a thought.
Wouldn't these Adjust guides be useless 30 yrs later.
I mean after chain stretching and worn guides, also the fact that most std cams now have a few degree's of adv or retard.
It would be hard to use this guide and get things right, without having brand new chains etc.

Your tensioner should take out any wear in guides and chain stretch. In theory cam timing should still be achievable.

[andrewzuku]

Ok, here's some more .DXF love from Foxau2...

18R-G/18R-GEU Intake Flanges and 18R-G Exhaust Flange as .DXF



18R-G_Flanges.zip (232 KB)

The .ZIP file contains:

• Foxau2's original .DXF drawings
• A consolidated .DXF drawing
• An .AI Illustrator file
• A .PDF version

[EDIT]
I just received my quote from watercutting.com.au for the 2T-G/18R-G Cam Tool (they're just up the road from me).

$110 minimum order. I can fit 6 cam tools in the job.

It's going to be 6-8 working days. I'll put some photos up once they're done, and if anyone's interested, I'm happy to send one for what it cost me ($18.33) + postage.

I'd say they'll fit in a "tough-bag", so postage will be bugger-all.
[/EDIT]

[andrewzuku]

On a side note...

What are the negative effects of not having a crankcase breather on an 18R-GU?



(that's an old photo, but it has a clear view of the plate I mean)

I noticed my engine doesn't have one. I'm pretty sure it's a genuine 18R-GU block (engine number starts with 18R95... and it's upside-down when read from the intake side).

[ra_28]

No great loss not having it, does help with the crank case breathing but not that important on a n/a motor. Mines blocked off at the moment and not causing any issues.

I will be going to use it but that's only because it's turbo charged and breathes a bit more than a N/A motor. I've run some fairly angry 18rg's in the past with no issues.

Alex

[JustenGT8]

Because there's such a large airway path up thru the timing chain cover you don't need the breather on the block. You very definitely need a breather though, even n/a, but the large one in the cam cover is usually sufficient. It's all I ran on my turbo RG with forgies.

[ian]

hi andrew
put me down for one
the cam tool that is

[lilcrash]

My death rattle has returned. I thought it was my top chain tension being too lose. I've tightened it up and the noise is back again. It's a metal on metal noise towards the front if the motor, engine has done 170miles since rebuild.