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Author: Subject: Heads up for keeping your regulator rectifier cool
Boylers11

posted on 13/10/14 at 09:42 PM Reply With Quote
Heads up for keeping your regulator rectifier cool

Just got one of these from Maplins for 5. The heat sink is 2" thick and the fan is roughly 2.5" diameter..
A complete bargain I thought and decided to share........


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mcerd1

posted on 14/10/14 at 07:28 AM Reply With Quote
socket A CPU's are so old I'm amazed any shops still have them

I must have at least one of them sitting in old scrap machines and several others of similar size for free...





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Boylers11

posted on 14/10/14 at 07:41 AM Reply With Quote
Lucky you. Just thought I'd help fellow BEC builders. No need to be an a**hole about it
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CosKev3

posted on 14/10/14 at 08:09 AM Reply With Quote
How hot do they get?
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Daddylonglegs

posted on 14/10/14 at 08:45 AM Reply With Quote
quote:
Originally posted by CosKev3
How hot do they get?


Very!

I had to have a similar thing on my old Honda VFR 750. A common fault is the regulator overheating and frying the battery. I cured it by using heat sink compound between the regulator and the frame, and fitting a 12V CPU cooling fan to the top of the regulator. It's surprising how hot CPUs etc can get.

[Edited on 14/10/14 by Daddylonglegs]





It looks like the Midget is winning at the moment......

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40inches

posted on 14/10/14 at 09:15 AM Reply With Quote
I did something similar,a 90mm fan from PC World, although it cost twice as much at 10.
Description
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CosKev3

posted on 14/10/14 at 11:25 AM Reply With Quote
quote:
Originally posted by Daddylonglegs
quote:
Originally posted by CosKev3
How hot do they get?


Very!

I had to have a similar thing on my old Honda VFR 750. A common fault is the regulator overheating and frying the battery. I cured it by using heat sink compound between the regulator and the frame, and fitting a 12V CPU cooling fan to the top of the regulator. It's surprising how hot CPUs etc can get.

[Edited on 14/10/14 by Daddylonglegs]


Ok cheers,have to think about positioning mine in the next couple of days as I chop my loom down

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bigfoot4616

posted on 14/10/14 at 12:37 PM Reply With Quote
i know honda's are well known for failing, don't think its as much of a problem on r1's though.

still worth a bit of thought when it comes to positioning of it.

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MikeRJ

posted on 14/10/14 at 02:48 PM Reply With Quote
quote:
Originally posted by bigfoot4616
i know honda's are well known for failing, don't think its as much of a problem on r1's though.

still worth a bit of thought when it comes to positioning of it.


A lot of the newer bikes (including later R1s) have MOSFET based regulators that run significantly cooler and are very reliable so no extra cooling is needed. The earlier Honda regulators had a terrible thermal design, quite surprising given Hondas reputation of engineering excellence.

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matt_gsxr

posted on 15/10/14 at 10:03 AM Reply With Quote
quote:
Originally posted by MikeRJ
quote:
Originally posted by bigfoot4616
i know honda's are well known for failing, don't think its as much of a problem on r1's though.

still worth a bit of thought when it comes to positioning of it.


A lot of the newer bikes (including later R1s) have MOSFET based regulators that run significantly cooler and are very reliable so no extra cooling is needed. The earlier Honda regulators had a terrible thermal design, quite surprising given Hondas reputation of engineering excellence.


+1 the MOSFET ones don't get hot at all.





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