Mending broken fins
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1981 XS1100SH (Lola) - Bright Cardinal Red
Whatever Lola wants, Lola gets.. Don't mess with Lola.
Mostly stock with a few minor upgrades
1981 XS11000SH being used for parts (Sold off)
Also have:
2009 Harley Davidson FLSTC with over 120K miles. All mine.
Currently traveling the country with an aluminum can in tow and a motorcycle in the truck bed in search of the perfect road. -
Does anyone know the operational temperature range of the XS1100 Engine?_________________________________________
1981 XS1100SH (Lola) - Bright Cardinal Red
Whatever Lola wants, Lola gets.. Don't mess with Lola.
Mostly stock with a few minor upgrades
1981 XS11000SH being used for parts (Sold off)
Also have:
2009 Harley Davidson FLSTC with over 120K miles. All mine.
Currently traveling the country with an aluminum can in tow and a motorcycle in the truck bed in search of the perfect road.Comment
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Hi, Rich -
Unless you're stuck/riding in a traffic jam on a really hot day, cylinder head temps should be in the 200-250*F range.Marco
Current bikes:
1979 Yamaha XS Eleven Special (SF)
1979 Honda CBX
2002 Kawasaki ZRX1200R
Rest in Peace, Don Glardon (DGXSER) 1966-2014
WE MISS YOU, DONComment
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What's the maximum temp it can tolerate before bad things happen. I've always been told that 350-400 degrees is the upper limit. The brazing/soldering solutions all flow at 400 degrees. This allows the aluminum alloy stick/paste to flow well below the melting temp of the head._________________________________________
1981 XS1100SH (Lola) - Bright Cardinal Red
Whatever Lola wants, Lola gets.. Don't mess with Lola.
Mostly stock with a few minor upgrades
1981 XS11000SH being used for parts (Sold off)
Also have:
2009 Harley Davidson FLSTC with over 120K miles. All mine.
Currently traveling the country with an aluminum can in tow and a motorcycle in the truck bed in search of the perfect road.Comment
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What's the maximum temp it can tolerate before bad things happen. I've always been told that 350-400 degrees is the upper limit. The brazing/soldering solutions all flow at 400 degrees. This allows the aluminum alloy stick/paste to flow well below the melting temp of the head.
And in that instance, you would probably have to keep the revs up to keep the bike running and prevent seizure ...
So yes, I would agree that 350-400*F is the upper limit.Marco
Current bikes:
1979 Yamaha XS Eleven Special (SF)
1979 Honda CBX
2002 Kawasaki ZRX1200R
Rest in Peace, Don Glardon (DGXSER) 1966-2014
WE MISS YOU, DONComment
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I'm going to experiment with the brazing. I can get some aluminum alloy rods from HF for $15 that have gotten good reviews. I can heat it up with a propane torch and flow it on. Afterwards, I'll grind off the access.
I'll try it on some broken aluminum parts I have around the shop.
I'll show pictures._________________________________________
1981 XS1100SH (Lola) - Bright Cardinal Red
Whatever Lola wants, Lola gets.. Don't mess with Lola.
Mostly stock with a few minor upgrades
1981 XS11000SH being used for parts (Sold off)
Also have:
2009 Harley Davidson FLSTC with over 120K miles. All mine.
Currently traveling the country with an aluminum can in tow and a motorcycle in the truck bed in search of the perfect road.Comment
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RIP Whiskers (Shop Boss) 25+yrs
"It doesn't hurt until you find out no one is looking"
Everything on hold...Comment
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Float posts too?
Somebody should try that product on broken float post(s)-Mike
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'79 XS1100SF 20k miles
'80 XS1100SG 44k miles
'81 XS1100H Venturer 35k miles
'79 XS750SF 17k miles
'85 Honda V65 Magna ~7k miles
'84 Honda V65 Magna 48k miles (parts bike)
'86 Yamaha VMAX 9k miles
Previous: '68 Motoguzzi 600cc + '79 XS750SF 22k miles +'84 Honda V65Comment
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This might be old news but I ran across this site on gas welding aluminum.
The demonstration is pretty impressive.
http://www.aluminumrepair.com/video-of-actual-repairs/Fast, Cheap, Reliable... Pick any two
'78E original owner - resto project
'78E ???? owner - Modder project FJ forks, 4-piston calipers F/R, 160/80-16 rear tire
'82 XJ rebuild project
'80SG restified, red SOLD
'79F parts...
'81H more parts...
Other current bikes:
'93 XL1200 Anniversary Sportster 85RWHP
'86 XL883/1200 Chopper
'82 XL1000 w/1450cc Buell, Baker 6-speed, in-progress project
Cage: '13 Mustang GT/CS with a few 'custom' touches
Yep, can't leave nuthin' alone...Comment
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That looks like a great solution
For fixing cast AL issues.
Wish I'd had that a few decades ago on some of the AL heads I used to run on my Fiat's.79 SF & 80 LG MNS
73 & 74 RD 350's
73 Honda CL 450
Graveyard - '81 XS850 Special
All of my bikes are projects, maybe one day I'll have them running.Comment
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I tried this on some pretty thin aluminum and it worked pretty well.
ONE THING. Try the practice with an aluminum can first and several times before you try using it on your project. It will test you. If you have to clamp the material use something that will not act like a heat sink.
I used a small hobby vice and it got pretty hot before I could get the rod material flowing.
RodgerRIP Whiskers (Shop Boss) 25+yrs
"It doesn't hurt until you find out no one is looking"
Everything on hold...Comment
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I'm going to vote for the epoxy/JB fix. What you have there is a really good joint for JB weld. Lots of texture for the stuff to grab on to. If you mix it properly it should not get soft once it has fully cured. Someone repaired one of the the cam tunnel tabs on my head and that sucker is ON there.
There are many other good epoxies out there too. It will be your most invisible solution. Brazing and welding will be much trickier, time consuming and may not work well / look good in the end. You do not have to worry about the small amount of cooling you will lose. It's minimal. Also, if the JB weld does not work , you can always actually weld it on later.
K.I.S.S. Trying new techniques on an important part is a recipe for tears. From one OCD dude to another.Living to EXcess.
1978 XS1100E Canadian, Cartridge emulators, NOS heavy duty fork springs,
Showa rear shocks, ACCT, Jardine 4-2 spaghetti pipes.
1979 XS1100F Canadian, stock exhaust. Top end rebuild in progress.Comment
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That repair video was pretty impressive. I've tried other, similar products and not been as happy, although I suck at soldering, too, so it might be me.
If you're worried about the hot engine dissolving the JB weld...would temperatures that hot have already wasted the engine?"Time is the greatest teacher; unfortunately, it kills all of its students."Comment
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