91 replies to this topic

[S pack]

dont shoot me could R mean original block reconditioned .i have a ql743015 spare used complete,3ribs 13d6 whatever that means.

13D6 is the block cast date code = 13th April 1976.

[Kockum]

Hello Mike ,

There may be a way to test your theory out - that 'R' means replacement engine .

Joe Kenwright had two late 73 XU1's with high performance engines.

A white one - Aldo's car now and a Cyan blue one .

There is a story on the blue car in AUSTRALIAN MUSCLE CAR magazine some years ago .

This car basically had a dud engine because of core shift during the casting process

BLUEY sat in a Holden dealers yard for ages waiting for a replacement engine to be supplied and fitted under warranty .

Unfortunately for Joe , shortly after getting it back some turd lower than a snakes belly stole it .

So hopefully Joe can remember the NP stamping details and/or still have some paper work for it .

[Kockum]

Your call I guess .

Regarding the oil caps - years ago my original silver one was looking very tired ,so I bought a new one from a Holden dealer - asked for a late 73 XU1 cap .

I was pleased to see the new cap was also silver with the same sticker /transfer as my old one . Yippee .

Some rear brake drum dribble - the scalloped ,wedged shaped HK drums will fit inside LC-LJ 5.5 '' steel rims and sprintmasters - why anyone would want to do this conversion is beyond me .

[Kockum]

It's all good .

I'm well aware you were referring to disc brakes .

The topic of using Monaro 'finned' rear drums on XU-1's has come up on the forum at least once - and I chose not to comment .

This time when there was mention of Monaro brakes I chose to include some trivia - nothing more , nothing less .

Black oil caps - the most likely scenario for this myth that comes to mind --- when stocks of the silver caps ran out your Holden dealer would have sold you a black cap - ie a generic cap suitable for XU-1's and other models with the vented type cap - hence the myth .

[S pack]

All late 1973 XU-1's had metric speedo and Odometer readings ( wrong ) the odometer was never metric on any LJ!

Mike

Do you have evidence to back up this claim???

Edited by S pack, 29 November 2012 - 07:55 PM.

[Bazza]

Hi

That sounds correct. The speed could be read in MPH or KPH but the odometer remained in miles travelled.

Cheers

Bazza

[S pack]

Hi

but the odometer remained in miles travelled.

Cheers

Bazza

Maybe, maybe not.

Cheers
Dave.

[yel327]

Nope. It is a factory thing. R meant REPEAT. I have photos of ADR plates with AR and AM on them, and chassis numbers from the same cars. I also doubt R1 and R2 ever existed, BUT the documentation exists that spells out how GMH employees were to deal with such an occurance.

[yel327]

You will also find it extrememly unlikely to find a bare unstamped factory supplied block post HQ engine series, and probably even post 1/68. Any of these I have seen appear to have been machined/decked and restamped, or simply machined and a Police number applied. Factory replacement engines and short motors will have Nasco/GMP&A numbers and block/piston kits appear to have normally arrived at the dealer performing the warranty work with the original engine number stamped. There is/was original procedural paperwork kicking around too with strict requirements that warranty replacement blocks be returned to (from memory - it was many years ago I saw it) the zone office for destruction.
Replacement chassis (in HQ-WB sense) were different and were supplied blank. I've had two of these and seen a few others.

[S pack]

The odometer has only 6 windows and one of those was in parts of a mile, it would have taken a total redesign of the odometer and a change of the gearing to be able to read more than 99999 Km, no such redesign occurred. The Monaro would have been in the same boat as was the HJ model as I recall?
I have owned LC, LJ and TA of these models for 35 years cocsesecutively now and have wrecked many more from years 1969 to 1975 and none of these had a metric odometer, it was not possible to fit an extra numeral window in the odometer.

The speedo came in both 100 mph and 120 mph versions, which changed to a dual reading ( miles inside and Kms on the outside ) for the speedo 100mph about July 1973 and a dual reading ( miles inside and Kms on the outside ) for the XU-1 about August 73 neither of these were metric odometers and none manufactured after these dates had metric odometers.

Mike

Mike

I assume you have done on road distance checks and found the dual scale speedometers all had imperial odometers not metric???
Are you sure you want to stand by what you claim???

To start with, check out your 1975 LJ parts catalogue, in there you'll find instrument cluster 2818892 (metric) this cluster has Speedometer Pt No. VS11190 (single scale KM with 6 digit odometer same as all LJ speedos but in Kilometres).

Cheers
Dave.

[S pack]

I suggest you reread what I have stated and consider the timing of the compulsary intorduction of the Metric system in Australia,
1st July 1974 was it?

Mike

I have read what you have stated and it is incorrect.

I suggest you do more research on the subject of dual scale speedometers!!!!!!

[yel327]

Mike,

You are not making a huge amount of sense in a lot of the above. Read through it all again and you'll see. Very hard to read.

Short motors certainly were available before 1970. You could buy a short motor or a block and piston kit right from the start of 1968 for HK, for 6cyl and V8. They are in the 1/68 Parts Catalogue. Nothing to do with X2 either.

The January 1968 date I used was because this was when the Nasco sequence for numbered short motors would have started. I've never heard of anything prior to that, which means itis unlikely GMH would have let an un-numbered block and piston kit out of Nasco either. Prior to that they probably did.

I never made mention of replacement engines with regards to pre HQ, not sure where you pulled that one from.

[S pack]

4.
Whole engines ( sequential from production line.) JP202 for late 71 LC XU-1 with July 71 dated 175 Strombergs
LJ sequential Holden numbered engines and HQ engines / GTR etc.

Mike

Small clarification to the above.
The GMH July 1973 engine usage chart specifies 186 XU1 or 3300 XU1 as suitable engine replacements for LC XU1.
Nowhere on the document is there any reference to limiting the use of the 3300 XU1 service engine to late 1971 LC XU1's only.

Also a notation on the document states that provision was made to continue supply of 186 service engines. Could this include the 186 XU1 engine, maybe, however the 186 XU1 isn't specifically mentioned as being continued.
The fact the chart specifies 186 XU1 or 3300 XU1 indicates the 186 XU1 service engine was still available in July 1973.

[yel327]

Mike, again not a lot of sense! I am not confused with what I am saying, I am confused with what you are writing!

1. Evidence suggets block and piston kits got numbers - the original number off the car. Same evidence suggests these came stamped from Nasco for warranty replacement purposes. Original block had to be returned. I'm not even certain that it was easy to buy block and pistons kits over the counter. I do remember Young and Green in Kotara used to have short red motors all lined up for sale at the spare parts wharehouse. I don't ever recall seeing a block and piston kit. My guess is these were supplied only on firm order and with details of the car it was to go into, possibly easier for race teams.

2. 186L prefixed engines are not the same short motor as 186P. Pistons differ between low and high comp engines (same for 202). 161 and 186 differ along the way through HR-HG, cams change, lifters change, rear main seals change. They are not all the same all the way through. They are interchangeable but not the same and don't all suit one application. Manual and Auto short motors have a different part number too, and even 173 high and low compression short motors differ in part number, presuming the cam is different. HK to HK-HG have a different sump too so these are different short motors hence the different engine number prefix in road vehicles - 186A to 186P - a Nasco short motor for a HK-HG won't suit a HR as the sump is different.

No idea what you are getting at with 3 and 4, I have no confusion with any of this.