

| Subject: | Re: Electrical questions. Radiator fan circuit from 85 Vanagon into 81 air cooled Westy. |
| From: | neil N |
| Date: | Tue, 22 Jan 2008 09:14:42 -0800 |
Thanks Mark. The help is appreciated, and as a side note, I must say I have learned a lot being on this list. I'll stick with the stock design though I *may* install an LED that would indicate when fan is on. Interesting to note what can happen with over useage of the high speed part of the rad fan circuit. When doing electrical work on my Westy last year, I was surprised to see one of the heavier gauge female spade connectors to one of the fuses was starting to melt. Of course i replaced the connector, but you'd think the original design wouldn't allow that to happen. Anyway..... Thanks again. I'll do my best to think things through before posting such strange ideas to this list. --- :^) "Now wheres my drawings for that new oblong wheel I was designing....." --- ;^) Neil. On Jan 22, 2008 6:07 AM, Mark Drillock <mdrillock@cox.net> wrote: > Neil, the high speed fan relay is seldom triggered and thus unlikely to > fail. On a few vans I have put a manual switch in to activate high speed > for special circumstances, using the manual switch to turn on the relay. > > One thing I would point out is that the older wiring may not really > withstand heavy use of high speed and I have seen overheating and > melting at the fan fuse holder at S7 on pre 86 models wired to use high > speed more often than stock. > > Mark > > > neil N wrote: > > Hi Mark. > > > > Thanks. > > > >> Use the relay for sure and make certain to fuse things properly. > > > > For sure I will. I have the fuse panel and relays from the 85. I was > > just "wondering out loud" about making things simpler. --- :^) > > > > In my rambling thoughts, I figured that relays do fail, so why not > > make it so that the only other major part (aside from the fan!) that > > could fail would be the thermo switche(s) or fuse. But this thinking > > is based on a lack of knowledge. i.e. obviously I don't fully > > understand why the relay is in the circuit in the first place. > > > >>........... > -- Neil Nicholson. 1981 Air Cooled Westfalia - "Jaco" http://web.mac.com/tubaneil Engine swap beginings: http://tubaneil.googlepages.com/
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