Isuzu G-series Twin Cam

Surely a search here or elsewhere (HoldenGem, Ozgem) should find info, including the timing. It's a pretty standard replacement, and usually sufficient to wire the chain to the sprocket (so it doesn't slip a cog) whilst keeping it up so it doesn't slip off the bottom of the crankshaft sprocket. And ...

I got a few new (NOS), but $150 each. Get Elky's!

Two leafs is just a simple trick for better handling (usually). Probably more common on GTs. Should help rear end NOT tuck under. Some swear by a rigid rear leaf but (1) this'll eventually break the mounts to the swingarm & (2) this is aka a live axle (non-independent). Sometimes rear springs in...

I was told Kiwis couldn't give away their 5-speed Piazza boxes! (Was it Wedgenut that said that? I could check...) Get a Piazza DOHC box!! The Gem & Piazza boxes should bolt straight in, BUT.... - you may need the speedo-cable L-piece if the rear crossmember interferes; - move the rear mount on ...

No probs, that's what good forums are for! If Brett is "BellettRacer", then he may have referred the older conversion with earlier Sigma hubs & discs which are not vented, and require machining else rare bearings. The later conversion is much easier (just remove the drum and fit the di...

Yep - the pixelated codes would be good, but that's another bit of web design or upgrade.
The strange thing is that these posted links seem invalid anyhow. Are they just junk-spamming various sites? Have the terrorist attacks started?

And yeah - still no OzGem.

A lot may have been politics too. We never saw their 4200 V6 released, nor their coolant-free ceramics, nor their hi-density batteries. The W's could achieve hi power with simple mods (eg G200W way over 200HP) but as above, it was a mid-1960's design and suited for RWD. They did their G-series SOHC ...

I take it that "bare" means cam-less?

Is it off a ZZR or similar (eg 4 injectors)?
(I'm not sure if the G180W had the 5-injector like the 117 G200W.)

Good one KE20! You'll need the 117 type oil filter that faces upwards, not the Gemini forward-down type as originally shown. I'm after spares of them too, but swapping shouldn't be too hard. Many G200Ws in Oz are from 117s and Gemini owners want the rarer Piazza/Gemini types. You already have the Pi...

Ditto. Last night I sent an email to gemini@moiv.net mainly to reactivate my account (couldn't log in after I changed email address; same happened to all my forums) but informed of "OzGem not being reachable". It sounds like someone hasn't paid their annual hosting subscription. (Oh no OzP...

Ooops - me booboo again!
The Piazza 180HP was an SOHC (not DOHC) with turbo as stated. I misread the literature. Sorry. I'll re-edit the above.
Cool. I too thought Isuzu did NOT have turbo'd G-W engines.
FYI - there was also a Florian Aska (1985) # 150HP but this was also a SOHC EFI turbo.

x2. Though it is nice for "casuals" to be able to drop I line - many times I want to add a killer comment but couldn't be bothered joining, even with a spare throwaway email address. Maybe have an open "guests (& sex bloggers) forum". But the rest should be blocked unless Poi...

How much are you asking?
I'm more interested in the G200W and the LSD diff with disk brakes (complete?).
Maybe too the 5 speed (a Pizza turbo box, or other? (with steel centre carrier?)).

Maybe they had the L1 cams? Maybe WA = DOHC Australia = HDT => L1 cams? Just kidding, but noting that as I stated elsewhere, I believe L1s were used by HDT their Rally Geminis (fairly definitely) and circuit racers. But the L1s are also the cams used for the 2x45DCOE 220+HP G200W setup. (I know anot...

I thought no hole, just solid. And was it some Yamaha shim that was close? But it must be hardened etc (eg, shim steel). Normal washers will hammer and flatten and break, then scratch and $$$$. And its surfaces must be parallel. Shims are usually ground or polished down. I know to that some type of ...

Nick - I hate you. I thought I had left EFI etc for a while.... That's a great link. I have seen it before, but maybe it was this viewing that finally made me see its significance. Wow! Now my memory is a bit vague (EFI is so last year for me), but.... I think Piazza injectors were about 220cc/m so ...

Damn bikes - always changing things. I thought they'd be 36mm or bigger Mikunis etc. But now, a few decades later..... Also considering that (eg) twin DCOE48s are ideal for a G200W - which is ridiculous for a mere 2 litre - I figured a 1 - 1.5L bike system would be under fueled. But TBIs with enough...

Do they really lose 25kW (25%) through the transmission?
(St'd EFI G200W is 135HP/101kW).
Might be time to get the GSXR chain as well! (Chuck the carbies - not enough air/fuel delivery.)

Curious breakage! And what a sht! But as you say, the timing (no pun) was lucky. You have probably seen me mention L1 cams elsewhere. I was told these were a race profile and normally too lumpy (or unsuitable) for street, but that they are fine in the G-W series. But someone in OzGem(?) said L1's ar...

Is this the V2032KC set? They are labelled "Isuzu G200Z 1984 on" but it is for DOHC (G200W).
A bit more than the $175 (and $80 for head gasket) as per topic-164 two years ago!

I agree with Poida's overhaul tips. (I'm not disagreeing with the rest - it's just that I don't own a Gemini!) The metho tip is good. I usually only wash in water which is surprisingly effective (brake gunk usually looks as if it needs petrol or U-236 to dissolve). Also good tip about NOT honing Al/...

Where are you or will you mail the parts, or pay for them etc? You mentioned 4 coil packs. For this you need a CAS unless the microtech has the smarts. (CAS is not needed for single-fire EFI & Ignition (aka sequential), but apparently few units have the smarts to get around using a CAS.) If you ...

Are you interested in parts swap if I have them?
(I want centre-up filter; not forward Gemini).

I've been told that while L1 cams are way too lumpy for sensible road use, in G-DOHCs they are quite acceptable.
I suspect that "220HP" G200W in Tassie had the popular DCOE45 & L1 job (though 48DCOEs & Delortos are better still).