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MkIII Cooper S Engine
Posted: Mon Apr 18, 2011 4:21 pm
by 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!
Re: MkIII Cooper S Engine
Posted: Mon Apr 18, 2011 6:11 pm
by medwaybeat
The 1300GT lump had the same head and pressed steel rockers.
Re: MkIII Cooper S Engine
Posted: Mon Apr 18, 2011 8:43 pm
by YMJ
medwaybeat wrote:The 1300GT lump had the same head and pressed steel rockers.
...and no tappet covers
Re: MkIII Cooper S Engine
Posted: Tue Apr 19, 2011 7:40 am
by 970s
Have seen a gen MK3S with press steel rockers, one piece damper!
Al
Re: MkIII Cooper S Engine
Posted: Tue Apr 19, 2011 10:34 am
by Ronnie
Pressed steel rockers, but it should have "S" spring caps.
Re: MkIII Cooper S Engine
Posted: Tue Apr 19, 2011 8:09 pm
by Henry
Cool, thanks for the info guys!
Re: MkIII Cooper S Engine
Posted: Thu Apr 28, 2011 11:23 am
by guru_1071
ive got an interesting bit of period documentation comming that i will scan and post up here ref mk3 s motors!
Re: MkIII Cooper S Engine
Posted: Sun May 01, 2011 7:47 am
by pdaykin
You little teaser
Re: MkIII Cooper S Engine
Posted: Tue May 03, 2011 11:46 am
by 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 !
Re: MkIII Cooper S Engine
Posted: Tue May 03, 2011 12:15 pm
by 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!
Re: MkIII Cooper S Engine
Posted: Tue May 10, 2011 12:25 pm
by 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!
Re: MkIII Cooper S Engine
Posted: Tue May 10, 2011 2:02 pm
by almondgreen
its not our glorious leader!
Are You sure ????
I like the phrase "our glorious leader"
Re: MkIII Cooper S Engine
Posted: Wed May 11, 2011 8:01 am
by 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
Re: MkIII Cooper S Engine
Posted: Wed May 11, 2011 5:13 pm
by Ronnie
Typical BL Bull ****? Std specification like the tufrided crank ( he should have stated also cheeper to produce)!!
Re: MkIII Cooper S Engine
Posted: Wed May 11, 2011 6:41 pm
by 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
Re: MkIII Cooper S Engine
Posted: Sat May 14, 2011 7:55 am
by mk1
Brilliant letter Rich, thanks for sharing.
Re: MkIII Cooper S Engine
Posted: Sun May 15, 2011 6:08 pm
by Ronnie
