92 replies to this topic

[Ice]

Yeah but not tonight CBF

Tomorrow some time

[N/A-PWR]

Great Man Gene,

 

I am looking for the PCD on the net, man there is no info out there hey.

I may have to do it the hard way tomorrow too.

 

what you do is, screw a tight bolt into the harmonic ballancer that has a round/smooth shank on the bolt protruding the harmonic ballancer,

then we measure the shank thickness and divide it by two ( A1 write that down ),

then measure with a vernier from the shank to the outside of the ballancer ( A2 write that down ),

measure the outside diameter of the harmonic ballencer ( A3 and write that down ),

So the P.C.D. = A3 - (( A2 - A1 ) x 2 ) 

[N/A-PWR]

we then look for the Nominal Imperial size closest to that outcome, Bingo

[rodomo]

3/8 UNF is the bolt size.

[N/A-PWR]

Thank's Rob

[N/A-PWR]

Hi All,

Now I thought this was going to be easy to measure up and found that my Harmonic Ballancer drilled P.C.D. maybe different to others,

as mine is short of a nominal Fractional P.C.D. size by 0.6mm. Dave I

 

So my Guess is, the Holden Red 6 Harmonic Ballancer is 2 7/8" P.C.D.

 

anyone able to clarify this to be correct, or to be corrected?

 

 

 

 

Found this great Chart - http://www.marylandm...h/cvtchtfdm.htm

Edited by TORYPOWER, 24 May 2014 - 12:16 PM.

[N/A-PWR]

No Worries Ken,

We are just waiting for Gene to give us a Weight,

otherwise I can do that in the next few days too. Dave I

 

Dave thanks very much for you hard work and detailed measurements of the retainer plate, much appreciated. Cheers

[Ice]

I hear ya Dave

[N/A-PWR]

I will bring a Scale in tomorrow Gene

[Ice]

Ive got scales Dave

[N/A-PWR]

Ok

[73SUNBURSTEXYOUWON]

Gday all, picked this retainer plate up today off evil bay..🤔 dont see them around much so, figured what the hell.

I did look onto the Dellow web page..
I understand the pressed steel plates are no longer produced...
But even the billet ones, there did not appear to be a current listing for them, the billet ones I was never interested in anyway..

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[73SUNBURSTEXYOUWON]

Refreshing this thread a little.
With the weight of a Dellow retainer plate.

Also, what colour were these painted back in the day? The colour of the balancer they were fitted to?

I have seen images of them Black or Chevy Orange.

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[grumpy xu1]

Chevy orange is for chevys, not Holden built engines. Rocket red is the GMH colour. I have a feeling that i know a guy who had an original 1 of those retainer plates in the past. I will ask & text you, if i find out an answer Jason.

[73SUNBURSTEXYOUWON]

Chevy orange is for chevys, not Holden built engines. Rocket red is the GMH colour. I have a feeling that i know a guy who had an original 1 of those retainer plates in the past. I will ask & text you, if i find out an answer Jason.

Thanks Gary.
Please correct me if wrong, on Holden Engine Reds, by colours - not specifically by years.

EH began as Holden Red,
then i though HR went to Rocket Red,
later red motors then went to chevy orange colour.

[claysummers]

The EH were definitely a darker red, less yellow, more black in the mix.

Sent from my SM-G781B using Tapatalk

[snuff1966]

Pretty sure Rocket Red went all the way through until VC Commodore, when the XT5 blue motors came out

[Indy Orange]

The EH were definitely a darker red, less yellow, more black in the mix.

Sent from my SM-G781B using Tapatalk

That was called “special red” .HR had that browny red also.

[claysummers]

That was called “special red” .HR had that browny red also.

So rocket red from the mighty HK on. KBS motor coater comes in rocket red.

Sent from my SM-G781B using Tapatalk

[S pack]

Holden Engine Red - EH, HD, HR exc X2 - Dulux spray enamel code 6268

Holden X2 Engine Red - Dulux spray enamel code 8929

Holden HK Rocket Red (used to end of red motor production) - Dulux spray enamel code 10890

Edited by S pack, 03 May 2022 - 11:22 PM.

[jd lj]

To the best of my knowledge these retainer plates were paint rocket red with the engine. I would assume that they were painted once fitted to the harmonic balancer and therefore the balancer was unpainted behind them but I'm only guessing with that statement thinking that from a production line point of view that would be the quickest way to do it.

[73SUNBURSTEXYOUWON]

Hi Cheers all,
TBH, the rocket red i came to know by name was probably around the HD-HR (X2 engine red as dave quoted above 8929) era.
I honestly never heard of the HK rocket red,(probly had my head in the sand then).

Makes sense the retainer plate painted the balancer colour.

Anyways live n learn

Jaso.

[S pack]

Jaso, in theory, if you had bought a spray can labelled as Rocket Red then you had bought Holden HK Rocket Red.

That said it is probable the colour may have varied slightly between manufacturers.

[Shiney005]

So what colour was Holden X2 Engine Red? Is it closer to the old EH red or the Rocket red? (Which was still being used with VK in 1985)  I just had a quick google and it came up with a dozen different shades.