: Timing Chain



ahahnu
07-01-10, 06:01 PM
Does the V have one? Someone was asking me and I have no idea. :hide:

heavymetals
07-01-10, 06:04 PM
YES it does.

814V
07-01-10, 06:15 PM
I thought it was pushrod.. :hmm:

darkman
07-01-10, 06:31 PM
Reading assignment- (yes it has pictures)


http://www.motorbooks.com/Store/Product_Details.aspx?ProductID=42331

heavymetals
07-01-10, 06:34 PM
I thought it was pushrod.. :hmm:

What do you think makes the cam go around and drives the pushrods?

shadybx7
07-01-10, 06:35 PM
:lol: really mike

april fools right.... in july

this has a timing chain
http://www.babez.de/vw/thunderbunny/vw-thunder-bunny-02.jpg

darkman
07-01-10, 06:38 PM
:lol: really mike

april fools right.... in july

this has a timing chain

It may well have a drive chain too.

SkullV
07-01-10, 07:17 PM
:lol: really mike

april fools right.... in july

this has a timing chain
http://www.babez.de/vw/thunderbunny/vw-thunder-bunny-02.jpg



Oh god, did you save that pic to your computer for future use? Hahah. In any case that does NOT have a timing chain, it has a timing belt. They switched to the timing chain in 2009 and that car is a 2006 IIRC. So HA!

V-Eight
07-01-10, 08:33 PM
Yes, usually pushrods have timing chains and other configurations have timing belts.

heavymetals
07-01-10, 08:36 PM
Yes, usually pushrods have timing chains and other configurations have timing belts.

Or gears (pretty noisy!).

ahahnu
07-01-10, 08:40 PM
I don't know everything (or anything), thanks guys. Will, your time will come.............................................. ...............

814V
07-01-10, 08:46 PM
I assumed it was gear driven. My bad..

concorso
07-01-10, 08:50 PM
Yes, usually pushrods have timing chains and other configurations have timing belts.Is there a reason that the other configurations use belts instead of chains? What reason would GM have for using a chain with the dohc 3.6L. Im not engine expert, but it would seem to me that choosing between the 2 had more to do with durability vs NVH, not the style of engine?

shadybx7
07-01-10, 08:55 PM
I don't know everything (or anything), thanks guys. Will, your time will come.............................................. ...............

"i kid i kid":duck:

ahahnu
07-02-10, 07:24 AM
:highfive: I know, that's the fun part. :Poke:

V-Eight
07-10-10, 12:53 PM
Is there a reason that the other configurations use belts instead of chains? What reason would GM have for using a chain with the dohc 3.6L. Im not engine expert, but it would seem to me that choosing between the 2 had more to do with durability vs NVH, not the style of engine?

From what I've read belts are better suited for the higher speeds of modern engines (which is a characteristic of DOHC engines). Another reason they are used is because of the ease of implementation which lowers cost.

WesH8398
07-11-10, 10:08 AM
My 97 Mustang was an overhead cam design and it was run off a chain ...

Slithering_Joe
07-12-10, 03:50 PM
My Cobra had 4 chains in it.

NASCAR [pushrod] engines use a belt.

TheSilverMonkey
07-16-10, 12:39 PM
Just out of curiosity, does the NorthStar use a belt or set of chains?

Every DOHC 4 banger (4G63, Hondas) I've worked on in the past has had a belt also inline 6's (2JZ-GTE, for example). I'm sure there are exceptions as I've just worked on mine and friend's cars.

ahahnu
07-16-10, 06:02 PM
This is turning into the prop shaft discussion of yester year. I was watching ultimate factories last night and they were putting together a Z06. They called it a prop shaft.

V-Eight
07-16-10, 09:41 PM
NASCAR [pushrod] engines use a belt.

But don't Nascars have a really short stroke so they can rev to like 10k?

Slithering_Joe
07-16-10, 11:26 PM
But don't Nascars have a really short stroke so they can rev to like 10k?

They use very good parts.

EChas3
07-16-10, 11:40 PM
10K RPM in a NASCAR 348 CID pushrod motor will damage the valve train. N* use chains.

Belts are cheaper, quieter and need frequent replacement.