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1984 GPZ1100 Rebuild 17 Nov 2014 11:30 #653957

  • LarryC
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dohc wrote:

eofa wrote: I measured the cam lobes today. 37mm. Are those stock or aftermarket?


The stock base circle is 1.110". Your 37mm is 1.457", which leaves a lift of 0.347". I believe the stock cams have a lift of around 0.375", so maybe you're measurement isn't accurate enough?

Anyway, those are likely the stock cams...


You are correct. It might have J cams in it. I have to wonder why the head is silver. It might be an LTD head. That's not a problem though. If it is, it's an 84 or 85 because it's got the good chambers. Dead give away is weather or not the engine temp sensor boss is drilled and tapped. If it's not....it's LTD for sure.
Larry C.

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1984 GPZ1100 Rebuild 20 Nov 2014 09:43 #654219

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We got our wet blast machine up and running at the shop. This thing is amazing. No toxic chemicals, no dust and makes quick work of carbon buildup and other junk. Dave did the first go at the valve head. I'll be doing some touch up this weekend.




-- Eric
Don't be dumb.

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1984 GPZ1100 Rebuild 20 Nov 2014 15:43 #654242

  • spdygon
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hey eofa.....nice built
if interested i have a 83-85 gpz1100 single adjustable Koni shock. i bout for my project but is 1" longer and i had welded the pieces for a 12.5" shock.
$125 shipped in the states.



1982 GS1000sz Katana ( #15...17K Miles)
1982 GS1000sz Katana ( # 297....7100k Miles)
1978 Kz1000 Z1R. 10K Miles1
1978 kz1000 z1r 27k miles
1977 KZ 1000 A ( Project ) 54K Miles
1976 Kz900A4 (Red)21K miles
1976 Kz900A4 ( Red)7500 miles
1974 Z1 900 project
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1984 GPZ1100 Rebuild 21 Nov 2014 07:02 #654295

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No thanks on the rear shock. I have a ZX6 one I will be running with the 636 swingarm.
-- Eric
Don't be dumb.

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1984 GPZ1100 Rebuild 21 Nov 2014 13:58 #654332

  • LarryC
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eofa wrote: We got our wet blast machine up and running at the shop. This thing is amazing. No toxic chemicals, no dust and makes quick work of carbon buildup and other junk. Dave did the first go at the valve head. I'll be doing some touch up this weekend.





You want to make sure you hose out the oil galleys thoroughly from both directions. :)
Larry C.

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1984 GPZ1100 Rebuild 21 Nov 2014 14:18 #654334

  • PLUMMEN
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eofa wrote: We got our wet blast machine up and running at the shop. This thing is amazing. No toxic chemicals, no dust and makes quick work of carbon buildup and other junk. Dave did the first go at the valve head. I'll be doing some touch up this weekend.




Im afraid to ask what that new blaster cost.all I can find online is specs,no pricing. :laugh:
Still recovering,some days are better than others.

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1984 GPZ1100 Rebuild 21 Nov 2014 14:22 #654335

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Oh there's pricing out there. Just gotta hunt for it. I'll say this much, at what this was spec'd out at, brand new from the factory, it's was around $15-20k. We did not pay that for sure. You also need an industrial sized compressor to run the proper PSI.
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1984 GPZ1100 Rebuild 21 Nov 2014 19:59 #654355

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IDK...if those pics are a typical example of what the end result is, I'd say they're a pile of money pissed down the drain. That finish is far from impressive.

This is blasted in a regular cabinet and didn't get finessed because it's going to be painted black....... real bead...not crushed glass and a steady 65 PSI.



Attachment 223.jpg not found

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1984 GPZ1100 Rebuild 21 Nov 2014 22:26 #654358

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LarryC wrote: IDK...if those pics are a typical example of what the end result is, I'd say they're a pile of money pissed down the drain. That finish is far from impressive.

This is blasted in a regular cabinet and didn't get finessed because it's going to be painted black....... real bead...not crushed glass and a steady 65 PSI.



That was kind of mean. Let the guy be excited for his set up. Just my half a penny.

Attachment 223.jpg not found

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1984 GPZ1100 Rebuild 22 Nov 2014 05:27 #654363

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That hydro blast machine looks awesome. What media does it use? I've heard there is less risk of grit residue with wet blasting but I don't know that much about the process.

Edit: looking on youtube and found this video...

Vapor blasting looks to leave a superior finish to that of bead blasting with glass. Less hassle of degreasing and pre cleaning too. Good stuff.

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1984 GPZ1100 Rebuild 22 Nov 2014 08:11 #654379

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wet blasting is sweet, the big systems I have used have been way nicer than conventional type. with air blasting the problems are almost always with dust collection and solids recycle, wet systems do this much better.

Larry has point, finish should be better... what media are you using?
If I knew what I was doing all the time life wouldn't be any fun.

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1984 GPZ1100 Rebuild 23 Nov 2014 13:18 #654466

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I guess there's always gotta be someone poo pooing someones excitement. I think the wet blasting is working just fine. Our biggest concern in the shop was dust and airborn particles. The wet blast has none. It also works fast. I blasted my pistions and it took around 15 min to do all four. I think they turned out real nice. We can also stretch the media since it's contained in the water and depending how many parts we do the slurry could last a long time before we have to empty it and start fresh. Pros and cons to everything but for our clean shop this is the best solution for us.




I reblasted the head and it cleaned up even better than the first pics I posted.
-- Eric
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