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[email protected] Samba Member
Joined: April 29, 2015 Posts: 704 Location: Berkeley Ca
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Posted: Fri Jan 22, 2016 4:59 pm Post subject: Re: Dash blower rebuild with (cheap) Jeep resistor - w/PICS |
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Thanks, just did this very easy and now I have all 3 speeds. Quick question how are people sound proofing the front? I have some stick on sound blocker, just wondering were the bast placement would be. |
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djkeev Samba Moderator
Joined: September 30, 2007 Posts: 32625 Location: Reading Pennsylvania
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joshtw709 Samba Member
Joined: June 01, 2017 Posts: 76 Location: austin, texas
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Posted: Wed Jul 26, 2017 7:00 pm Post subject: Re: Dash blower rebuild with (cheap) Jeep resistor - w/PICS |
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I just did this conversion and notice melting plastic smell every time I have the blower motor in setting one or two, but never in setting three (didn't convert to the four speed fan switch). I can cruise it in setting three and then go down to setting two and notice melting plastic smell in about 20 seconds, kick it back to setting three and it goes away. any idea what is going on here? I've replaced my blower motor, wiring, and resistor. I have a new switch in the mail but I have a hard time thinking it is the cause.
cheers,
josh _________________ 1980 rusty light blue westfalia - sold
1987 less rusty white westfalia - daily driver |
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IdahoDoug Samba Member
Joined: June 12, 2010 Posts: 10251 Location: N. Idaho
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Posted: Wed Jul 26, 2017 7:05 pm Post subject: Re: Dash blower rebuild with (cheap) Jeep resistor - w/PICS |
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I did this mod n have no smell. _________________ 1987 2WD Wolfsburg Vanagon Weekender "Mango", two fully locked 80 Series LandCruisers. 2017 Subaru Outback boxer. 1990 Audi 90 Quattro 20V with rear locking differential, 1990 burgundy parts Vanagon. 1984 Porsche 944, 1988 Toyota Supra 5 speed targa, 2002 BMW 325iX, 1982 Toyota Sunrader |
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danfromsyr Samba Member
Joined: March 01, 2004 Posts: 15144 Location: Syracuse, NY
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Posted: Thu Jul 27, 2017 7:35 am Post subject: Re: Dash blower rebuild with (cheap) Jeep resistor - w/PICS |
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the coils on the resister get HOT. did you get any plastic shavings on them when installing them into the hole? or is it too close to an edge or the back inside.
the fan airflow is supposed to help in cooling the resistor coils. perhaps it's not getting enough of the airflow. _________________
Abscate wrote: |
These are the reasons we have words like “wanker” |
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joshtw709 Samba Member
Joined: June 01, 2017 Posts: 76 Location: austin, texas
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Posted: Thu Jul 27, 2017 1:16 pm Post subject: Re: Dash blower rebuild with (cheap) Jeep resistor - w/PICS |
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the smell seems to lessen when I have the floor vent closed and all the air coming thru the dash vents. presumably greater air-flow across the resistor is occurring when I close off the floor vent? _________________ 1980 rusty light blue westfalia - sold
1987 less rusty white westfalia - daily driver |
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djkeev Samba Moderator
Joined: September 30, 2007 Posts: 32625 Location: Reading Pennsylvania
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dhaavers Samba Member
Joined: March 19, 2010 Posts: 7757 Location: NE MN (tinyurl.com/dhaaverslocation)
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Posted: Thu Jul 27, 2017 8:08 pm Post subject: Re: Dash blower rebuild with (cheap) Jeep resistor - w/PICS |
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Very reasonable explanations above. Unless your heater box is somehow damaged, plugged
or otherwise modded, there should be plenty of airflow to cool the new resistor.
Post a pic of your install...could be a great help in our long-distance troubleshooting...???
- Dave _________________ 86 White Wolfsburg Westy Weekender
"The WonderVan"
<EDITED TO PROTECT INNOCENT PIXELS> |
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joshtw709 Samba Member
Joined: June 01, 2017 Posts: 76 Location: austin, texas
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Posted: Sat Jul 29, 2017 1:54 pm Post subject: Re: Dash blower rebuild with (cheap) Jeep resistor - w/PICS |
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dhaavers wrote: |
Very reasonable explanations above. Unless your heater box is somehow damaged, plugged
or otherwise modded, there should be plenty of airflow to cool the new resistor.
Post a pic of your install...could be a great help in our long-distance troubleshooting...???
- Dave |
[img]
below are three (kind of bad) photos of the install. I cut the hole in my heater box approximately the same as done by dhaavers.
seems like maybe setting 1 and 2 possibly generate more heat than setting 3 for the resistor, or the air just isn't sufficient. maybe I need to go to the 4 speed setup...
[/img] _________________ 1980 rusty light blue westfalia - sold
1987 less rusty white westfalia - daily driver |
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Paulbeard Samba Member
Joined: July 10, 2015 Posts: 2604 Location: Seattle
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Posted: Sun Jan 14, 2018 5:02 pm Post subject: Re: Dash blower rebuild with (cheap) Jeep resistor - w/PICS |
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Just to post an update. Looks like mine failed after 2 1/2 years. Three speed switch (OG) and the middle speed isn't working, as tested with a wire jumper between the switch terminals. So off to replace the resistor. Maybe I'll find a more durable one this time.
EDIT: looks like the part number at Oreilly (my FLAPS) is 2BMR15 from MPI. I ordered the wrong one from the big online superstore which I now have to return. Yes, I could cut and splice the wires to make it work but the point of this to be a simple R&R. _________________ Currently -> Frida: 87 Tizian Red (mostly) Vanagon GL Westfalia w/ 2.0L ABA conversion
Formerly -> Steward of a 73 Super Beetle (Beater) and 67 Beetle 1300 (Little Max) both names by POs
— dhaavers
Last edited by Paulbeard on Sun Jan 21, 2018 4:29 pm; edited 3 times in total |
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Zeitgeist 13 Samba Member
Joined: March 05, 2009 Posts: 12115 Location: Port Manteau
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Posted: Sun Jan 14, 2018 5:51 pm Post subject: Re: Dash blower rebuild with (cheap) Jeep resistor - w/PICS |
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The info I learned in this thread helped me to resolve an issue on a completely unrelated vehicle. I'm servicing a friend's '82 F150 (eyeroll) and was having a hard time locating the correct fan resistor--for reasons unknown, this truck is kind of a unicorn for lots of parts. None of the resistors I found from the usual sources were the same, but then I remembered this thread and began looking for a Jeep unit. Sure enough, the '92 Wrangler used a slightly smaller unit, but even the spades fit the Ford plug. With some small mods I was able to get it to fit, and it was less than $7 _________________ Casey--
'89 Bluestar ALH w/12mm Waldo pump, PP764 and GT2052
'01 Weekender --> full camper
y u rune klassik? |
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dhaavers Samba Member
Joined: March 19, 2010 Posts: 7757 Location: NE MN (tinyurl.com/dhaaverslocation)
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Posted: Sun Jan 14, 2018 5:56 pm Post subject: Re: Dash blower rebuild with (cheap) Jeep resistor - w/PICS |
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The resistors never last...at least you could get to it easily!
- Dave _________________ 86 White Wolfsburg Westy Weekender
"The WonderVan"
<EDITED TO PROTECT INNOCENT PIXELS> |
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dhaavers Samba Member
Joined: March 19, 2010 Posts: 7757 Location: NE MN (tinyurl.com/dhaaverslocation)
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Posted: Fri Feb 23, 2018 9:34 am Post subject: Re: Dash blower rebuild with (cheap) Jeep resistor - w/PICS |
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FWIW...Related recent discussion: https://www.thesamba.com/vw/forum/viewtopic.php?t=694838 _________________ 86 White Wolfsburg Westy Weekender
"The WonderVan"
<EDITED TO PROTECT INNOCENT PIXELS> |
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luVWagn Samba Member
Joined: February 21, 2008 Posts: 1340 Location: Snoqualmie (WA)
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Paulbeard Samba Member
Joined: July 10, 2015 Posts: 2604 Location: Seattle
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Posted: Sat Jan 12, 2019 6:28 pm Post subject: Re: Dash blower rebuild with (cheap) Jeep resistor - w/PICS |
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If it's not shown, I wouldn't count on it. If you click through to get the price ($8.99 for me) it says there are 5 spade terminals, so I'd say no connector. _________________ Currently -> Frida: 87 Tizian Red (mostly) Vanagon GL Westfalia w/ 2.0L ABA conversion
Formerly -> Steward of a 73 Super Beetle (Beater) and 67 Beetle 1300 (Little Max) both names by POs
— dhaavers |
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dhaavers Samba Member
Joined: March 19, 2010 Posts: 7757 Location: NE MN (tinyurl.com/dhaaverslocation)
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Posted: Sat Jan 12, 2019 6:34 pm Post subject: Re: Dash blower rebuild with (cheap) Jeep resistor - w/PICS |
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Several vendors on eBay supply Dorman brand w/harness: https://www.ebay.com/itm/Blower-Motor-Resistor-Kit...1438.l2649
FWIW: I'm still running my OE Mopar brand resistor w/no troubles...
- Dave _________________ 86 White Wolfsburg Westy Weekender
"The WonderVan"
<EDITED TO PROTECT INNOCENT PIXELS> |
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markswagen Samba Member
Joined: January 28, 2018 Posts: 1039 Location: san diego
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Posted: Sat Jan 12, 2019 11:06 pm Post subject: Re: Dash blower rebuild with (cheap) Jeep resistor - w/PICS |
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i recently put one into westy that i converted from air-cooled, i'd already previously fitted the BMW brake booster to the van, and space looked very tight in there, so i fitted the jeep resistor on the other side of the heater box, if it were to require replacing, it's now accessible from the glove box, I rewired it all anyway, so the new wiring was made long enough to go around the back of the heater box, it's all good. _________________ markswagen {mobile mechanic} san diego area all early VW's cared for.
619 201 0310 |
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DuncanS Samba Member
Joined: October 17, 2013 Posts: 4583 Location: New Hampshire
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Posted: Fri Jan 18, 2019 6:52 am Post subject: Re: Dash blower rebuild with (cheap) Jeep resistor - w/PICS |
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Sure glad to have found this thread. Even with a lube tube for the left side bearing, my fan now growls so loudly, the Bach Cantata and Fugue in D minor for the organ at full blast is not appreciating the competing fan "duet". The PO kindly delivered my '91 to me with a frozen fan which I was able to free, but.............
However, I always assumed the huge ceramic resistor behind the left headlight was the fan speed controller. Apparently not as nobody mentioned such an item. What is that one and what does it do? When a few of my older T3's died, I "harvested" these just in case and so have two spares.
I have used the bearing lube tube for the last 4 T3's I've had and it makes a huge difference. Dash coming out this summer and will do all of what you have done, but worried about all the various failures mention in the posts. Maybe the resistor loads are just too high for the switch contacts and relays should be used. I noticed that no one followed up on nocreditnodebt's old post copied here below.
For those who don't mind a little modification or a Non stock appearance, A PWM motor speed controller rated to handle the amperage can be used to control blower motor speeds, and instead of set speeds, infinitely variable.
https://www.amazon.com/uniquegoods-Controller-Adjustable-Variable-Switch/dp/B00K4W4FQO
Motors might emit a whine when slowed though vie Pulse width modulation. The higher the HZ the better with speeds over 16khz likely inaudible to humans.
Some versions allow one to change the frequency too but I lost the bookmarks.
I recently did a new blower motor and resistor and resistor connector in a Non VW application, and kind of regret not going the PWM route instead.
I upgraded wiring to 8awg and the motor gets so much more voltage and spins so much faster, it moves as much air on medium high speed as it did on high previously.
Me again--Why not use this and skip all the switch and resistor and possible melting plastic issues altogether? His post was 2015, so I assume that by now the electronics are better and cheaper.
Duncan |
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dhaavers Samba Member
Joined: March 19, 2010 Posts: 7757 Location: NE MN (tinyurl.com/dhaaverslocation)
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Posted: Fri Jan 18, 2019 7:32 pm Post subject: Re: Dash blower rebuild with (cheap) Jeep resistor - w/PICS |
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Granted, The OG dash switch IS prone to failure, but easy to change out. Likewise, the Jeep resistor
mod is not a permanent fix (no resistor lasts forever) but definitely an improvement because it is
much easier to change out than the OG resistor buried deep inside the box buried behind the dash.
FWIW: Resistor behind headlight = radiator fan, controlled by radiator temp switch (...& associated relay...???)
PS: My OE Jeep resistor still holding up 4 years on, but always interested to hear about other effective options....
- Dave _________________ 86 White Wolfsburg Westy Weekender
"The WonderVan"
<EDITED TO PROTECT INNOCENT PIXELS> |
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corypharmd Samba Member
Joined: February 08, 2019 Posts: 1 Location: MT
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Posted: Fri Feb 08, 2019 11:45 am Post subject: Re: Dash blower rebuild with (cheap) Jeep resistor - w/PICS |
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Hey @dhaavers, did you wire it with 1 being low, 2 being medium, 3 being high and 4 being the clutch? Thanks Cory
1986 Syncro full camper
1983 westy camper |
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