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MarkT Exhaust
Valkyrie Riders Cruiser Club > General > 1500 Tech Board > Fuel pump heat shield
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Author Topic: Fuel pump heat shield  (Read 862 times)
MarkT
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VRCC #437 "Form follows Function"

Colorado Front Range - elevation 2.005 km


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« on: February 19, 2017, 02:08:06 PM »
Fabbed up a heat shield out of shop scraps & installed.  If it was a problem, as many think including me, it is no more.  16-ga steel plate, 1/2" angle steel.
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Vietnam-474 TFW Takhli 9-12/72 Linebckr II;307 SBW U-Tapao 05/73-4
rhinor61
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Northern California
« Reply #1 on: February 21, 2017, 01:40:01 PM »
Mark nice work!
You are always coming up with new ways to improve our bikes.
I need one.  cooldude
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John

Northern California
1998 Valkyrie Tourer Black/jade
VRCC #28001
Tfrank59
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'98 Tourer

Western Washington


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« Reply #2 on: February 23, 2017, 10:13:38 AM »
Yes, nice job.  I didn't know that's an issue--is it that road stuff gets up in there and can ruin the pump or hoses?
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-Tom

Keep the rubber side down.  USMC '78-'84
'98 Valkyrie, ‘02 VTX 1800, '96 Royal Star, '06 Drifter, '09 Bonneville, '10 KTM 530, '04 XR 650, '76 Bultaco, '81 CR 450, '78 GS 750...
MarkT
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Posts: 5196


VRCC #437 "Form follows Function"

Colorado Front Range - elevation 2.005 km


WWW
« Reply #3 on: February 23, 2017, 11:19:40 AM »
Quote from: Tfrank59 on February 23, 2017, 10:13:38 AM
Yes, nice job.  I didn't know that's an issue--is it that road stuff gets up in there and can ruin the pump or hoses?

No.  It's a HEAT shield.  There have been numerous belly tank fuel pump failures.  Behavior implies it's likely overheating and there's a huge heat source right next to it - the single wall section of the headers which get red hot if there's insufficient airflow around them.  If the problem is caused by heat from the exhaust - this will stop it. I have not had the failure yet - and now I bet I won't going forward.
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Vietnam-474 TFW Takhli 9-12/72 Linebckr II;307 SBW U-Tapao 05/73-4
DarkSideR
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Pueblo, Colorado


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« Reply #4 on: February 23, 2017, 12:51:49 PM »
I fab'd up a heat shield after my belly tanks fuel pump embarrassingly quit on me at the beginning of a group ride.

I went the other way with the mount. My heat shield mounts under the pump itself so the pump holds the heat shield in place.

If I were to do another one I would build an air scoop to pull air up and over the pump, but I hope just protecting it from the heat from the exhaust pipe will be good enough.
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2001 Valkyrie Super Tourer
VRCC#34410
VRCCDS#0263
Gryphon Rider
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2000 Tourer

Calgary, Alberta
« Reply #5 on: February 23, 2017, 01:49:12 PM »
As I can't weld, I'd probably make something out of aluminum and use pop rivets if I needed to join parts.  No need to paint, and lighter.
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MarkT
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Posts: 5196


VRCC #437 "Form follows Function"

Colorado Front Range - elevation 2.005 km


WWW
« Reply #6 on: February 23, 2017, 02:06:12 PM »
You can "weld" aluminum with just a MAP torch, some aluminum feed rods, and a wire brush.  Almost like brazing.  No big investment. See https://www.youtube.com/watch?v=3SBfP4_i1Go

Here's another one.  Simple, cheap.

https://www.youtube.com/watch?v=QLAjeSa6CqI
« Last Edit: February 23, 2017, 02:18:35 PM by MarkT » Logged

Vietnam-474 TFW Takhli 9-12/72 Linebckr II;307 SBW U-Tapao 05/73-4
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