V5, how does it work?

[saunders1587]

Right i have seen it a few times on the back of VAG cars, but someone please explain to me!

How do you get a V5? If you have a Vee engine its always got to be a even number else how would it be balanced??

Please tell me someone lol

Cheers guys :beerchug:


Dan.

[kenney]

Hi Among other thing, but mainly, it is the positioning of the crankshaft journals and counter weights on the crankshaft.

[STEWY L]

Hi Among other thing, but mainly, it is the positioning of the crankshaft journals and counter weights on the crankshaft.
as above,plus firing order,balancer gears/shafts,but i would hazzard a guess
mostly,as above, crank angles. i would imagine that in contrast to an "even number" v, the pistons are all travelling in a more "upward" direction, rather
than trying to tear the engine apart by travelling away from each other in opposite directions.
just hang on a short while and someone will give you the "proper" answer!!!
take care,
stewy.

[Marv 1.8T]

My friend had a V5 golf it had 3 cylinders towards the front and 2 near the back of the engine bay (not entirely sure so dont quote me)

just imagine if you have a straight 5 and split it to make a v shape ( i know a poor explanation!!) :)

[darkhorse1001]

balancing i get, in fact you could argue it is harder to balance a four cylinder engine.

as for the V, the V5 and V6 engines in the golf, passat, bora etc are not true V engines. they are what is known as VR (as in a mkIII golf VR6) engines. A true V engine has two cylinder heads, one for each bank of cylinders, where as a VR engine has the pistons offset into a v, but at a much more shallow angle allowing the benfits of a shorter crankshalf length as the bores can be pushed together, but with a single cylinder head covering both banks.

what gets me is the timing, i get how and when, but trying to fire one cylinder when the others are mid stroke strikes me as madness.

[saunders1587]

balancing i get, in fact you could argue it is harder to balance a four cylinder engine.

as for the V, the V5 and V6 engines in the golf, passat, bora etc are not true V engines. they are what is known as VR (as in a mkIII golf VR6) engines. A true V engine has two cylinder heads, one for each bank of cylinders, where as a VR engine has the pistons offset into a v, but at a much more shallow angle allowing the benfits of a shorter crankshalf length as the bores can be pushed together, but with a single cylinder head covering both banks.

what gets me is the timing, i get how and when, but trying to fire one cylinder when the others are mid stroke strikes me as madness.

i know what you are saying about the timing, i work on lorries, we have a few scanias with the straight 5 engines!! Awesome bit of kit, if i can remember rightly the firing order was 1-5-3-2-4, but as this would make it so unbalanced there is a balancing shaft in the sump which spins twice as fast as the crank to try and balance this out!

thanks for the help though guys, its been really bugging me for a while!


cheers:beerchug: