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About to rebuild, what to do?

3K views 14 replies 4 participants last post by  teamhog  
#1 ·
My 08 rzr800 started knocking this weekend so a rebuild is eminent, I'm just wondering what internal mods I should do while the engine is out, cam? Stroker? What's reliable and not stupid expencive?
 
#2 ·
Really not that many options when you start talking upgrade v. rebuilds.
The stroker crank is a TON of money compared to the other costs.

How many miles are on your engine and what do you have to do to it?
Is it just a top-end rebuild that is needed or are you looking at also doing the bottom-end of it?
 
#5 ·
Just to give you an idea of cost...
The Polaris Parts alone are somewhere in the $1,000 range the items below.
You should also get a new woodruff key; and now with what I know I'd get a new starter and a new bendix and along with the bushings that go in the case and the cover.

Look at Hot Rod Cranks; they had the best pricing on those.
If you want a BBK there are a lot of good options.
I like the kit that Muzzy has put together.

You'll need pistons; rings; rods...

These prices are old so just use them as a guide not written in stone.
Give FixMyToys a call and have Jeff put a kit together for you.
You can email him too: jeff@fixmytoys.com

Call him first and let him know what you're looking to do.

  • Part# QTY Description Retail, EA. Total
  • 5811511 1 GASKET-EXHAUST,27 .25 MM $25.00 $25.00
  • 7516734 1 SCREW $2.50 $2.50
  • 7518984 4 SCR-M8X1.25X22,HX/SO $3.25 $13.00
  • 3610047 1 SEAL,EXH.SOCKET $16.00 $16.00
  • 5137264 2 VALVE-EXHAUST HIGH TEMP 30MM $31.00 $62.00
  • 5136197 2 VALVE-INTAKE, 35MM $17.00 $34.00
  • 5910329 2 SEAT-VALVE SPRING,DT800/700 $3.00 $6.00
  • 5411895 2 SEAL-VALVE GUIDE $16.00 $32.00
  • 5247360 1 Polaris Base Gasket $15 $15
  • 3585704 2 Main Bearing (split) $16 $32
  • 5412676 1 Crank Seal $15 $15
  • 2203012 1 Oil Pump Assy $105 $105
  • 1204082 1 Oil Pump P/U $16 $16
  • 5412455 1 Oil Seal $20 $20
  • 3610075 1 WP Seal $34 $34
  • 5132753 4 Counter Bal. Bearing $15 $60
  • P5247360 1 Polaris Base Gasket $15.99 $15.99
  • 3585704 2 Main Bearing (split) $19.38 $38.76
  • 5412676 1 Crank Seal $18.96 $18.96
  • 2203012 1 Oil Pump Assy $126.44 $126.44
  • 1204082 1 Oil Pump P/U $19.08 $19.08
  • 5412455 1 Oil Seal $25.28 $25.28
  • 3610075 1 WP Seal $42.99 $42.99
  • 5132753 4 Counter Bal. Bearing $18.96 $75.84
  • _______ 3 Break-In Oil $8 $24
  • _______ 1 81.5mm Piston Ring Compressor $10 $10
  • _______ 1 Gearcase Lift Plates $20 $20
  • _______ 1 Assembly Lube $3 $3
  • _______ 2 NGK Spark Plugs $12 $24
 
#14 ·
If you take the clutch cover off and focus on the primary, does it wobble or appear to make off-center movements of any kind? From the sounds of what you describe, it is not looking good.

John: How often do cranks crap-out on non modified 800s? I guess it could be his bearings, or pulled oil pickup in the case..