MkIII Cooper S Engine

[Henry]

Was wondering if the factory MKIII Cooper S engine 12G940 head came with the pressed rockers or the steel rockers? Just asking because I picked up a late S motor, it has the correct 12G940 head with the 1.4" inlets, dual valve springs, 12G1805 stamping, etc, but it has the pressed rockers. Curious if that was original or if they had been changed sometime during it's life. Thanks!

[medwaybeat]

The 1300GT lump had the same head and pressed steel rockers.

[YMJ]

The 1300GT lump had the same head and pressed steel rockers.

...and no tappet covers

[970s]

Have seen a gen MK3S with press steel rockers, one piece damper!

Al

[Ronnie]

Pressed steel rockers, but it should have "S" spring caps.

[Henry]

Cool, thanks for the info guys!

[guru_1071]

ive got an interesting bit of period documentation comming that i will scan and post up here ref mk3 s motors!

[pdaykin]

You little teaser

[Pete]

Mine's got pressed steel rockers and also has the engine number 38G which has been in the car since new. 38G being a replacement number I can only guess the lump was pulled out at Longbridge when it failed final inspection, certainly before it was registered anyway !

[guru_1071]

nothing new there pete, a mate of mine bought a brand new le35 (the almond green special edition) that managed abut 4 miles from the dealers before the engine seized solid - the oil pump had failed! - it had to have a full new engine/box fitted when it was less than a week old!

[guru_1071]

this letter belongs to a mk3s that is owned by a customer of mine - he is the second owner and took it in part exchange from the original owner in 1984 (against a 535m bmw!)

he has got every bit of paperwork that came with the car



sorry about watermarking it, but it was an agreement of copying it.

for extra comedy value please note the name of the owner - its not our glorious leader!

[almondgreen]

its not our glorious leader!

Are You sure ????

I like the phrase "our glorious leader"

[vulcanbb18]

Fantastic document, obviously this "Mr M Forster" didn't like his pressed steel rockers

Or does "Our Glorious Leader" (hehe) have a TARDIS out back?

cheers

Jacob

[Ronnie]

Typical BL Bull ****? Std specification like the tufrided crank ( he should have stated also cheeper to produce)!!

[pad4]

Never seen a broken pressed steel rocker - seen plenty of bust 'S' ones.....sometimes cheap crap works, another example, had a fake tag heuer watch for 6 years , never missed a beat, bought a real calibre 6 carrera, had it on 3 times and its bust

[mk1]

Brilliant letter Rich, thanks for sharing.

[Ronnie]

Never seen a broken pressed steel rocker - seen plenty of bust 'S' ones.....sometimes cheap crap works, another example, had a fake tag heuer watch for 6 years , never missed a beat, bought a real calibre 6 carrera, had it on 3 times and its bust

You should have bought a Rolex Paul!