Differences in an Auto S4 motor/Manual S4 motor?
03-02-2019, 10:53 PM
#1
Racer
Thread Starter
Differences in an Auto S4 motor/Manual S4 motor?
Besides the stamping on the block, what do I need to do/change/modify to install an 'auto engine' into my S4, a factory 5spd?
03-02-2019, 11:02 PM
#2
Vegas, Baby!
Rennlist Member
Rennlist Member
Engines should be the same.
03-02-2019, 11:12 PM
#3
Racer
Thread Starter
I think all the 928s have a steel crankshaft - I know my Challenger R/T with a manual has the MDS deactivated AND these engines come with a Steel crankshaft whereas the automatics have a cast crank. I like Steel better! lol
03-02-2019, 11:18 PM
#4
flywheels are obviously different.
03-03-2019, 12:41 AM
#5
Rennlist Member
One is subject to TBF, one not so much.
03-03-2019, 01:57 AM
#6
Rennlist
Basic Site Sponsor
Basic Site Sponsor
Flywheel. Pilot bearing. Some years: A/C pulley.
03-03-2019, 12:32 PM
#7
Basic Sponsor
Rennlist
Site Sponsor
Rennlist
Site Sponsor
Pretty simple the auto engine will give you lots of extra power.
__________________
Does it have the "Do It Yourself" manual transmission, or the superior "Fully Equipped by Porsche" Automatic Transmission?
George Layton March 2014
928 Owners are ".....a secret sect of quietly assured Porsche pragmatists who in near anonymity appreciate the prodigious, easy going prowess of the 928."
Does it have the "Do It Yourself" manual transmission, or the superior "Fully Equipped by Porsche" Automatic Transmission?
George Layton March 2014928 Owners are ".....a secret sect of quietly assured Porsche pragmatists who in near anonymity appreciate the prodigious, easy going prowess of the 928."
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03-03-2019, 01:01 PM
#8
Nordschleife Master
Auto has an extra mounting point on the throttle quadrant. Also an extra vacuum connection.
In addition to the flywheel & pilot bearing.
Internals are the same, AFAIK.
In addition to the flywheel & pilot bearing.
Internals are the same, AFAIK.
03-03-2019, 11:14 PM
#9
Racer
Thread Starter
Well,
My S4 Flywheel all freshened up and trued up, I love the cross-hatch pattern, good machine shops are getting harder to find.
I'll ask...I will find out, but, is the Pilot Bearing in this pic?
I have Coffee Table plans for this engine, and, will be more creative and balanced than the ones out there!
Roger's left leg needs one of these!
And I will miss this 5spd engine number! LOL!
My S4 Flywheel all freshened up and trued up, I love the cross-hatch pattern, good machine shops are getting harder to find.
I'll ask...I will find out, but, is the Pilot Bearing in this pic?
I have Coffee Table plans for this engine, and, will be more creative and balanced than the ones out there!
Roger's left leg needs one of these!
And I will miss this 5spd engine number! LOL!
03-03-2019, 11:23 PM
#10
Nordschleife Master
The pilot bearing fits in the hole in the back of the crank.
The nose of the intermediate shaft fits into it.
It's what supports the intermediate shaft when you push the pedal in and the shaft stops spinning while the engine (and crank) still turns.