Crank pulley/Serp belt Help

[JB]

About how much contact area of the crank pully should touch the belt? As much as possible? The belt currently wraps around the pulley and touches about 2/3 of it, but due to an oversight on my part, (and me not wanting to fix it the right way) i i might need to fix it to where the serp belt only touches about 1/3 of the crank pulley. Make sense? Will it slip?

[Graystroke]

Just from a common sense stand point I would say at least half since everything is driven from the rotation and grip that the belt has on the crank pulley. I would just look at a bunch differnt vehicles w/ the same amount of engine driven accessories and see how the manufactures did it. Compare number of pulleys/accessories vs. HP vs. loads (size of acc) vs. contact area and take the avg. my 2 cents...

[fbronco86]

Just from a common sense stand point I would say at least half since everything is driven from the rotation and grip that the belt has on the crank pulley. I would just look at a bunch differnt vehicles w/ the same amount of engine driven accessories and see how the manufactures did it. Compare number of pulleys/accessories vs. HP vs. loads (size of acc) vs. contact area and take the avg. my 2 cents...

I think u should leave this up to an engineer :flipoff2: Considering that the crank drives the system I would think that you would need at least 50% to be on the safe side of things. I am willing to bet it will slip.

[stx4wheeler]

if you are gonna be at the meeting tonight john you can look at the setup on mine and see if that helps.

[JB]

I am going to end up fixing it the right way.

I converted my old v-belt style pulleys/accessories over the the 87+ serpentine setup. Changed out pretty much everything, except the water pump. Since the serp belt turns the water pump counterclockwise, I was SOL. Thus I needed an 87+ pump. But an 87+ pump will not match up to the ports on the 86 timing cover. So, I have since pulled everything back off, including old timing cover and will search for an 87+ timgin cover tomorrow(or just spring for a new one). I will then put it all back together.

****

[BigRedFord04]

theres a 302 timing cover on ebay right now. saw it earlier.

linky (http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&category=33625&item=7949903303&rd=1&ssPageName=WDVW)

[BMFScout]

I think u should leave this up to an engineer :flipoff2: Considering that the crank drives the system I would think that you would need at least 50% to be on the safe side of things. I am willing to bet it will slip.
you are an engineer? If the guys at work could see your bronco.... :flipoff2: :gigem: brugly.... ;)

[jerryg79]

you are an engineer? If the guys at work could see your bronco.... :flipoff2: :gigem: brugly.... ;)

good form!

[Graystroke]

Considering that the crank drives the system I would think that you would need at least 50% to be on the safe side of things. I am willing to bet it will slip.
hmmm... sounds familiar.
Quote:
Originally Posted by Graystroke
Just from a common sense stand point I would say at least half since everything is driven from the rotation and grip that the belt has on the crank pulley.

you must have been one of those kids growing up that always cried to his mom,"No one will play with me!"

We all know you're an engineer and that you work in Silicon Valley known also as Lufkin, Texas.

[stx4wheeler]

theres a 302 timing cover on ebay right now. saw it earlier.

linky (http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&category=33625&item=7949903303&rd=1&ssPageName=WDVW)

i think he has a 351 austin, and i dont think the covers are interchangeable, but i could be wrong.

[fbronco86]

you are an engineer? If the guys at work could see your bronco.... :flipoff2: :gigem: brugly.... ;)

Funny i have a job and u dont :flipoff2:

[JB]

its a 302...found one (http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=7949416230)

[BMFScout]

Funny i have a job and u dont :flipoff2:

Damn I guess I will check with my boss on monday and see why the fawk I clock in everyday. I sure wish I had a real job, live in beaumont, houston, virginia, or hell even Lufkin!

[jerryg79]

Funny i have a job and u dont :flipoff2:

Yes mike, and remember decaf and no teeth!