| Author |
Message |
Hotrodvw
Samba Member
Joined: July 06, 2004
Posts: 6327
Location: Orygun
|
 Posted: Sat Oct 29, 2011 8:09 pm Post subject: |
 |
|
I had my stock, unwelded fan to 7K+ on accident.......it held up. Would I do it again? Heck no.  I'm building a new IDA motor, going to weld the fan. I should say, that you can gain a bit of 'buffer' if you will, by running a smaller power pulley at the track to keep that fan from spinning so fast. This of course all depends on what RPM you're shifting at if it's isn't too obnoxious.
_________________
'67 Sunroof
Eric
78x94 with IDA's....oober fun
Horsepower is an addiction........Addictions cost
lots of money!
Hose & Fittings |
|
| Back to top |
|
 |
Glenn 
Mr. 010
Joined: December 25, 2001
Posts: 76909
Location: Sneaking up behind you
|
| Posted: Sat Oct 29, 2011 8:15 pm Post subject: |
|
|
15 years ago I missed a shift and had the stock fan explode. Had to replace the shroud, oil cooler, alternator and fan shroud. Also had 2 fins broken on the right side head.
_________________
Glenn
74 Beetle Specs | 74 Beetle Restoration | 2180cc Engine
"You may not get what you pay for, but you always pay for what you get"
Member #1009
#BlueSquare |
|
| Back to top |
|
|
mxracer
Samba Member
Joined: April 09, 2011
Posts: 568
Location: NC
|
| Posted: Sat Oct 29, 2011 8:42 pm Post subject: |
|
|
| I tig'ed my T3 fan without issue. There is enough tab bent over at each fin to weld it without filler rod so throwing it out of balance isn't an issue. I had everything from pulley to flywheel balanced and the fan was still dead on after welding it. It's an easy job with a good tig welder and a little skill. If anyone is interested PM me and I'll weld it up for a fraction of the cost of a Berg one. Then you can get it balanced (or at least checked) when you get the rest of the parts done. I also plan to make a jig for my balance machine so I can take care of that part as well. |
|
| Back to top |
|
|
69 Jim
Samba Member
Joined: September 27, 2004
Posts: 6264
Location: Chickengeorge's Neighbor
|
| Posted: Sun Oct 30, 2011 12:06 am Post subject: |
|
|
| Didn't research it well enough prior to purchasing one from Kustom1. What a wobbling piece of crap. Will be calling Berg on Monday. Live and learn... |
|
| Back to top |
|
|
[email protected]
Samba Member
Joined: August 03, 2002
Posts: 12785
Location: Salt Lake City, Utah
|
| Posted: Sun Oct 30, 2011 11:24 am Post subject: |
|
|
You can prevent some of the fan issues by running a GOOD BELT, "race loose". The fan will hit a speed and won't go faster, even with increasing engine speed. That's one problem with Serpentine Belts, they grip "too well".
_________________
It's just advice, do whatever you want with it!
Please do NOT send me Private Messages through the Samba PM System (I will not see them). Send me an e-mail to john at aircooled dot net
"Like" our Facebook page at
http://www.facebook.com/vwpartsaircoolednet
and get a 5% off code for use on one order for VW Parts ON OUR PARTS STORE WEBSITE, vwparts.aircooled.net |
|
| Back to top |
|
|
rkeller
Samba Member
Joined: February 15, 2007
Posts: 169
Location: Wake Forest, NC
|
|
| Back to top |
|
|
58 Plastic Tub
Samba Member
Joined: September 03, 2007
Posts: 418
Location: Nowhere, USA
|
| Posted: Wed Jan 18, 2012 10:43 pm Post subject: |
|
|
I would be interested. There's one....
_________________
Stan Galat
"Everybody is entitled to their own opinions, but not their own facts." |
|
| Back to top |
|
|
torsionbar
Samba Member
Joined: December 11, 2010
Posts: 2215
Location: earf
|
| Posted: Fri Jan 20, 2012 1:21 pm Post subject: |
|
|
| Hotrodvw wrote: |
| So, welding them is the easy part. How does one balance one themselves? I know how it's done, but have any of you done it yourself at home? |
sure, anybody can do it themselves at home. you just need to own a balancing machine. do you have a balancing machine at home?
_________________
| Max Welton wrote: |
[air cooled vw's] are no longer suitable for the general public. The owner has to be be able to maintain the car. And that is after fixing all the deferred maintenance items and ill-conceived modifications. If you can't do those things you are pretty much screwed. |
|
|
| Back to top |
|
|
Hotrodvw
Samba Member
Joined: July 06, 2004
Posts: 6327
Location: Orygun
|
| Posted: Fri Jan 20, 2012 1:32 pm Post subject: |
|
|
I do not.
_________________
'67 Sunroof
Eric
78x94 with IDA's....oober fun
Horsepower is an addiction........Addictions cost
lots of money!
Hose & Fittings |
|
| Back to top |
|
|
catbox
Samba Member
Joined: May 16, 2007
Posts: 865
Location: Portland, Oregon
|
| Posted: Fri Jan 20, 2012 1:46 pm Post subject: |
|
|
Lawn mower blade balancer....
_________________
"...these cars were preferred by the racers because the strut front suspension results in far superior handling than the regular torsion bar front end..." - Keith Seume. |
|
| Back to top |
|
|
Hotrodvw
Samba Member
Joined: July 06, 2004
Posts: 6327
Location: Orygun
|
| Posted: Fri Jan 20, 2012 1:49 pm Post subject: |
|
|
 Harbor Freight sells balancers.....
_________________
'67 Sunroof
Eric
78x94 with IDA's....oober fun
Horsepower is an addiction........Addictions cost
lots of money!
Hose & Fittings |
|
| Back to top |
|
|
oldmanmark
Samba Member
Joined: July 08, 2006
Posts: 842
Location: n.w. indiana,chicagoland
|
| Posted: Mon Jan 30, 2012 12:21 am Post subject: |
|
|
| X2 on racin jason. |
|
| Back to top |
|
|
adalcanto
Samba Member
Joined: July 09, 2005
Posts: 48
Location: San Jose, California
|
| Posted: Tue Jan 31, 2012 1:38 pm Post subject: |
|
|
The bottom line is you never want one to explode as it tears things up beyond belief. I had one explode at Sacramento (BOM) and it took out the fan shroud, alternator and broke a few fins off of one cylinder. The noise.... holy crap! My linkage got tweaked and what not. Let’s just say that night I was in the pits doing a teardown and repair with a mediocre fan I bought from a vendor. On race day I pulled the belt so there was no chance of another grenade going off. I now run a Berg fan with a serpentine belt and have taken it up but still uncomfortable with it so I pull the belt when I race. Even if you use a v-belt and run it loose it is risky in my opinion and most time the belt just rolls off and you lose it at halftrack.
1LOW67 |
|
| Back to top |
|
|
rs58rag
Samba Member
Joined: August 22, 2010
Posts: 419
Location: riverside,ca
|
| Posted: Wed Feb 01, 2012 11:14 pm Post subject: |
|
|
| Fully tig welded German fan is the way to go and remember to torque fan nut to 40-45 lbs. |
|
| Back to top |
|
|
Joost
Samba Member
Joined: December 16, 2011
Posts: 30
Location: Holland
|
|
| Back to top |
|
|
hpw
Samba Member
Joined: July 17, 2006
Posts: 3010
Location: memphis
|
|
| Back to top |
|
|
Hotrodvw
Samba Member
Joined: July 06, 2004
Posts: 6327
Location: Orygun
|
| Posted: Mon Feb 27, 2012 3:30 pm Post subject: |
|
|
Sounds appropriate due to the weak USD. There are other ways than spending $462.00.
_________________
'67 Sunroof
Eric
78x94 with IDA's....oober fun
Horsepower is an addiction........Addictions cost
lots of money!
Hose & Fittings |
|
| Back to top |
|
|
thebucket
Samba Stockbroker
Joined: April 06, 2004
Posts: 3734
Location: Houston Texas
|
|
| Back to top |
|
|
youngstah
Samba Member
Joined: December 28, 2008
Posts: 89
Location: california
|
| Posted: Sun Jan 11, 2015 6:20 pm Post subject: fwiw berg doghouse fan 2105 |
|
|
After reading this older yet informative thread and speaking w a berg late last year i figured a purchase was in order. It seemed at the time there were only a few German OEM fans hanging around still.
I waited until now to place the order. I thought od share woth you what i received and let you comment: Prumsa (sounds brazilian?)
Im NOT completely on the up and up re good vs bad practices with welded fan production but upon inspection i did notice the following so perhaps you could comment:
- good weld penetration
- it seems filler rod was used
- the veins dont appear to be perpendicular to the axis
- the edges are ground for circumference rounding - is this how its balanced?
- clean bare metal, coated w a wd40 like substance (do folks have theirs painted / powder coated and will this affect the balance?
|
|
| Back to top |
|
|
Eaallred
Samba Member
Joined: May 18, 2003
Posts: 5756
Location: West Valley City, Utah
|
| Posted: Sun Jan 11, 2015 7:40 pm Post subject: |
|
|
It certainly does look like filler rod was used. Using a TIG to simply melt the existing tabs over works extremely well though....
_________________
Eric Allred
You have to remember something: Everybody pities the weak; Jealousy you have to earn. |
|
| Back to top |
|
|
|
Did I convert that right?
