| Author |
Message |
keary_lewis0303
Samba Member
Joined: March 18, 2003
Posts: 98
Location: St Petersburg FL
|
 Posted: Sat Jun 02, 2018 5:54 am Post subject: Smaller pulley question |
 |
|
I bought this engine with a smaller than normal pulley, it came off of a rail buggy. I'm putting it into a bug is this a good or bad thing. What's the purpose of a smaller pulley ? Will it create a cooling issue?thanks
|
|
| Back to top |
|
 |
TDCTDI
Samba Advocatus Diaboli
Joined: August 31, 2013
Posts: 12860
Location: North Carolina
|
| Posted: Sat Jun 02, 2018 7:22 am Post subject: Re: Smaller pulley question |
|
|
Those are called "power pulleys", they reduce the drag/RPMs by turning the generator/cooling fan slower, OK for quick passes down the strip, not so good for engine longevity.
_________________
Everybody born before 1975 has a story, good, bad, or indifferent, about a VW.
GOFUNDYOURSELF, quit asking everyone to do it for you!
An air cooled VW will make you a hoarder.
Do something, anything, to your project every day, and you will eventually complete it. |
|
| Back to top |
|
|
bluebus86
Banned
Joined: September 02, 2010
Posts: 11075
|
| Posted: Sat Jun 02, 2018 8:44 am Post subject: Re: Smaller pulley question |
|
|
The small pulley is for decreased cooling, increased power output, what could go wrong? Its better use is as a paper weight.
Bug On in Coolness!
_________________
Help Prevent VW Engine Fires, see this link.....Engine safety wire information
Stop introducing dirt into your oil when adjusting valves ... https://www.thesamba.com/vw/forum/viewtopic.php?t=683022 |
|
| Back to top |
|
|
mukluk
Samba Member
Joined: October 18, 2012
Posts: 7028
Location: Clyde, TX
|
| Posted: Sat Jun 02, 2018 1:20 pm Post subject: Re: Smaller pulley question |
|
|
And just in case the message isn't clear yet that running a power pulley isn't a good idea for cooling and longevity reasons, the following pics are of an engine I was given showing what a power pulley is good for.
_________________
1960 Ragtop w/Semaphores "Inga" |
|
| Back to top |
|
|
keary_lewis0303
Samba Member
Joined: March 18, 2003
Posts: 98
Location: St Petersburg FL
|
| Posted: Sat Jun 02, 2018 4:30 pm Post subject: Re: Smaller pulley question |
|
|
| Ouch i better get that outta there. |
|
| Back to top |
|
|
EverettB 
Administrator
Joined: April 11, 2000
Posts: 69829
Location: Phoenix Metro
|
|
| Back to top |
|
|
runamoc
Samba Member
Joined: June 19, 2006
Posts: 5601
Location: 37.5N 77.1W
|
| Posted: Sun Jun 03, 2018 6:02 am Post subject: Re: Smaller pulley question |
|
|
Look at it this way...not using the thermostat? Using a power pulley will get the operating temperature up enough to vaporize the moisture in the oil. 
_________________
Daily driver: '69 Baja owned 44 yrs - Plan B: '81 Rabbit Diesel LS Deluxe - Plan C: '72 Ghia
Yard Art: 2 Sandrails
Outback: '69 Ghia - '68,'69,'70,'72 Beetle - '84 Scirocco, GTI - Pair of '02 Golfs-
VW Wiring = It's just wires |
|
| Back to top |
|
|
|
