Sigma-galant.com

And it clearly states that a HOT AREA, (and this INCLUDES an overheated plug ceramic, CAUSED by a too hotter plug) is one of the causes of preignition, which in turn raises temperature. Lets understand that a too hotter plug is ONE of SEVERAL causes of preignition etc etc...........and I never inten...

Yes, that does explain it very well. It explains that this is wrong: These colder plugs will keep combustion temp down to overcome the tendency to ping. Thanks for that, but the extract was for the benefit of "SE Wagon" and "81GL".........................I hope they read and und...

Mopar 340 or Hemi 426. Jag XK 3.4/3.8/4.2 (quite an amazing engine for the era).......or for a diesel......Detriot 6/72 (I agree about the sound, and I've worked on them) Mitsu 4G63GS I had in my blue GB. Factory twin carb version of Starion engine (with minor mods)....torque+revs+reliability+smooth...

This is on page 2............how would you inerpret it? "The most serious result of selecting a heat range that is too hot is overheating. Overheating will cause the electrodes to wear quickly and can lead to pre-ignition. Pre-ignition occurs when the air-fuel mixture is ignited by a hot object...

This explains it very well...................

http://www.ngksparkplugs.com/tech_suppo ... p?mode=nml

Roger

81GL wrote:

toruhiwi wrote:These colder plugs will keep combustion temp down to overcome the tendency to ping

The heat "range" of a plug doesn't effect combustion temp. Unless your way off the ball park and the plug melts
Just use the standard plug, it will be fine.

Nick.

Sorry, but you are wrong!!!

Thanks for that............were they in ADR27A engines? (Post July 1976)

Coincidently, the belt drive GS is a #6. Came in Aust market importeds 4G32, 4G37 .........L300, Cordia, Nimbus etc

Roger

, it used to have a cam#1 then recently had it replaced with a cam#6.

I'd be interested to know................Is the #6 from a chain drive 4G32GS motor?

Roger

According to the Jap shop manual, local market 4G32 belt drive had the same valve springs as 4G32GS (factory twin carb) engines which had max power at 6700rpm...... Give them a go.............

Roger

I took my coupe to obriens a while ago and they said they couldn't get a screen for it, they got the sizes out of their book and ran a tape measure over the car and their screens were about 100mm SHORTER than what was on the coupe. To me it just sounds like they can't be bothered dealing with older...

They used to be available quite a few years ago. You may find someone with old stock.

I have an old Bilstein catalogue somewhere. I'll dig it out and post the part number.

Roger.

Shuggy,

What initial timing have you set in the chain drive? .....Is the distributor working properly??

Which plugs are you using?

Roger

It's the octane rating which makes a difference, not wheather it's leaded or unleaded. If you use Premium ULP, preferrably 98octane, you can increase the initial timing accordingly. Try it on about 15degrees BTDC initially. If it pings under load, knock it back 2 degrees at a time with road testing....

I had wagon springs (complete with diff housings and brakes) in 2 previous sedans way back....GA and GB, and removed the 2 lower leaves. This still has a fairly high rate as the wagon leaves are somewhat wider than sedan ones. These were mated with KYB gas monotubes on the GA and Tokico Golds (also ...

That's severe inflation.............O'Briens fitted one in my GC hardtop about 4 or 5 years ago. I seem to recall it was less than $300 at the time.

Roger

Done and dusted then..................

Roger

I did see a GA version in Sydney during the '70s when I had my GA sedan.

They are Hardtops hence the "H" suffix in the model number. GTOs had a "C" suffix = coupe.

Dave, Thanks for pointing that out. Maybe the subject line should be re-worded to "GA/GB versus GC/GD" which still discounts non locally sold models.......or does it? Slight revision here... If they are to be in original unmodified form, GB sedan for driving enjoyment, GC hardtop for cool....

Most people seem to have strayed from the subject line "GB versus GD". This also discounts GA, GC, GE etc and all models not sold in Australia. I've owned 5 Galants, a GA (nice) I bought new in '72 and owned for 8 years, a 9 year old GB sedan (nice) which I owned for a further 9 years, a G...

Pics are up under "GC Hardtop with GTO" heading.......................

Roger

Should have worn my glasses.... Yes, 041-6671L and on the OPPOSITE edge of the SAME lens 041-6671R, which indicates that this lens can be used on either side of the car. I have a RH and LH light with the same lens numbers. The lamp bodies are, incidently, ALSO marked 041-6671R and 041-6671L respecti...

The measurements on my lens's certainly match up. They have a Stanley #041-667. I don't have a GC/GD parts catalogue to cross refer the lens part # to MMC.

Roger

The 4G35 engined X1 and X2 produced from Feb '72 to Jan '73 were missed there. 4G52 versions were from Jan '73.

Dave, I hadn't realized you were NZ located. Not too many GTO parts and shop manuals on the West Island. I am originally from Waikato/ King Country and remember seeing new 16Ls then GTOs in dealerships over there on my frequent return trips during the 70s. Was wondering when they were going to arriv...

dwlee, You are correct, they are not genuine items. They were new in a box of maybe discontinued stock. The owner sourced them from an obscure wrecking yard so that the car would pass "blue slip" inspection and is going to try and find out the brand. I do recall Hella used to make lights o...

According to the factory parts catalogue, GTOs during their production run, (which incidently came in 9 models plus 2 autos) had 5 different park/turn light assys and 4 different lens styles, The A57C had the option of 3 of these depending on the Jap or export market......confused? The ones on this ...

One of my old mates has just got his GTO 2000GS registered and on the road (NZ import). He also owned a GTO during the 70s when the old "Colt Sporting Car Club" was alive in Sydney. I shall be working on the carbs shortly so I will encourage him to join the register. I intend taking some p...

Modify the present carb to give mechanical operation to the secondary stage. This will make it much more responsive without sacrificing economy . This is a relatively simple operation which benefits all downdraught Mikuni/Solexes.

Keep the Galant M/cyl (if it presently has front drums, remove the non return valve from the front circuit of the m/cyl outlet) and fit 9" rear brakes from a Galant wagon. If the m/cyl is old, renew it. I'm certain they are still available for around $100. I had a non boosted GB for many years ...

Maybe the range of pads available in Tasmania is restricted? I use the old exchange backing plates, not make my own. The material is asbestos free semi metallic which this company developed nearly 30 years ago with only minor change since....... Great stopping power and life, very little dust and ki...