Engine Running Backwards

silver Dangerous when poked

2,169 posts · joined Dec 2002 · 29 Jun 2003, 8:58 pm

#61502

Can a VW Engine Run Backwards? I have a friend with a buggy and he claims his engine in running backwards is this possible? I haven't seen this for myself yet but I reckon he is off his tree I will be checking this out this week.
what would the oil pump be doing?
is the starter motor reversed?
what about valve timing ?
It surely not possible............. :o

Keeping it real !

Menangler Custom Title Time!

1,991 posts · joined Aug 2002 · 29 Jun 2003, 9:46 pm

#61536

Not possible, unless he means its running on after its switched off, then it will run backwards, but only for a bit.

If he's driving it around with 4 reverse gears and 1 1st gear, the ring and pinion has been flipped in the gearbox??

FAHRVERGNUGEN;
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Experienced when a car and it's driver are in mutual harmony, A unique driving experience, Pleasure, Satisfaction,
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Herbie 53 Bugs are not nearly enough

764 posts · joined Sep 2002 · 30 Jun 2003, 1:41 am

#61596

I believe it could run backwards if there was a cam remade in reverse and the starter was modified but otherwise it would intake thru the exhaust and exhaust thru the carby and there would be no fuel etc to make it run.
I have heard of rover v8s being made run the otherway by making a backwards spec cam.

62 Ragtop Herbie with a little extra oomph.

vw54 Administrator Always Waiting 4 Friday

16,723 posts · joined Aug 2002 · 30 Jun 2003, 7:41 am

#61614

Only if the engine was pulled apart and a re designed camshaft installed.

They do this with the Corvair engines to make them rotate clockwise when fitted to a VW gearbox.

But a special cam has been made to do this.,

I read it on FACEBOOK so it must be true

http://forums.aussieveedubbers.com/viewtopic.php?tid=91278&page=1#pid848630

http://forums.aussieveedubbers.com/viewtopic.php?tid=63561&page=1#pid624099

http://forums.aussieveedubbers.com/viewtopic.php?tid=4832&page=1#pid452603

http://forums.aussieveedubbers.com/viewtopic.php?tid=60650&page=1#pid574409

Baja Wes V6 Baja Pioneer

3,119 posts · joined Aug 2002 · 30 Jun 2003, 2:07 pm

#61679

you'd need a special oil pump too design to swap the suction and discharge ports around. Cam would also thrust the wrong way, bit of a prob since they is no thrust bearings one way. Need a custom cam as mention. Backwards starter would be tricky.

Wes - www.offroadvw.net - 200HP Quad Cam V6 in a VW Baja - with climate control... 🙂
www.taylorcycles.com.au - My DH MTB racing brothers shop.

vw54 Administrator Always Waiting 4 Friday

16,723 posts · joined Aug 2002 · 30 Jun 2003, 5:28 pm

#61720

Wes

I was thinking they could Clutch start the engine.... no need for a starter.

Anyway why would they want to go backwards.

I read it on FACEBOOK so it must be true

http://forums.aussieveedubbers.com/viewtopic.php?tid=91278&page=1#pid848630

http://forums.aussieveedubbers.com/viewtopic.php?tid=63561&page=1#pid624099

http://forums.aussieveedubbers.com/viewtopic.php?tid=4832&page=1#pid452603

http://forums.aussieveedubbers.com/viewtopic.php?tid=60650&page=1#pid574409

KruizinKombi Seriously Obsessed Cyber Dubber

3,493 posts · joined Aug 2002 · 30 Jun 2003, 6:48 pm

#61762

Advance mechanisms would have to be modified too. 🙂

Kruizin Kol