My rotary valve cover is the original from when I purchased it in '98, the rotary valve itself is new when I put the new motor in. Hi Folks, I'm helping a friend fix his 1990 Seadoo SP. Quickview. I know the rotary valve clearances are very important, so I have my doubts. plus 1 one the feeler gauge method, not sure of the 717 but on the 787 you need to remove the rv cover o ring to check it. 1998 GTX RFI, 5666/5843, - Crankcase, Rotary Valve. 1999 GSX RFI, 5637/5638/5652/5829 - Crankcase, Rotary Valve 2. Some people may be confused by the way Sea Doo refers to their engines. THIS WAS REMOVED FROM A FRESHWATER ONLY USE MACHINE. A rotary valve consistently delivers a specific amount of material at its discharge. You have a 147 degree valve not the 130 degree. 1999 GTX RFI, 5886/5887 - Crankcase, Rotary Valve. Rotary Valve Parts for Sea-Doo; Rotary Valve Parts for Sea-Doo Showing: all. Can they be resurfaced? Sea-Doo; Is my rotary valve clearance enough to cause this? Sea Doo Rotax Engine Specs & Information. ALSO, THIS IS FROM A RUNNING MACHINE. Rotary Valve Data Sheet,Dust Collection Rotary Valve,Rotary Air Lock Valve , Find Complete Details about Rotary Valve Data Sheet,Dust Collection Rotary Valve,Rotary Air Lock Valve,Sea Doo Rotary Valve Seal,Sea Doo Rotary Valve Seal Replacement,Install Rotary Valve Seadoo from Other Food Processing Machinery Supplier or Manufacturer-Chengdu Cheegers Machinery … The clearance between the rotary valve and the cover should be 0.30 +/- 0.05mm Here's the pages out of the manual to explain the timing procedure. Sort By: Rotary Valve Cover. If this is your first visit, be sure to check out the FAQ by clicking the link above. Price: $100.00 Code: RV_Cover Qty in Cart: none. On my site, I refer to particular engines by the Rotax model (587,657,717,787,947). To start viewing messages, select the forum that you want to visit from the selection below. The airlock then can maintain one pressure on its inlet side and a different pressure or vacuum on its discharge side. An airlock is a rotary valve whose vanes fit closely enough to its circular housing to maintain an airtight seal. Edited by Jeremy Railsback on 7/3/2010 at 3:42 PM EST NOTE: On RFI and DI models, always check for fault codes recorded in the MPEM first using the VCK (vehicle … You may have to register before you can post: click the register link above to proceed. XP800 /Challenger /GSX /GTX /XP /Challenger 1800 /SPX /GSX RFI Rotary … That doesn’t correspond to CCs although close. also as mentioned above check the rv cover and crank case for scoring. Add to Cart. It is a guideline and should not be assumed to have all causes for all problems. I did't actually do the steps to check the cover clearance, but removed it last night and there are some small ridges or grooves that go around the cover, like they in the same motion as the valve spins. I've found the problem that was causing a binding and clicking (popping) noise when the crankshaft was manually rotated clockwise. Products in this category: 8. SAFETY NOTICE SAFETY NOTICE This ENGINE SHOP MANUAL has been prepared as a guide to correctly service and repair the 717 and 787 RFI Rotax® engines. Here's a printable degree wheel. This edition was primarily published to be used by technicians who are already familiar with all service Instructions are the same just use 147 and 65 as your numbers. My question will be whether the damaged crankcase can be reused. Re: Seadoo 717 , how to check rotary valve clearance ? SEA DOO GS / GTS / GTI / GTX / GTX RFI / GTX DI / RX / RX DI / XP TROUBLESHOOTING CHART The following is provided to help in diagnosing the probable source of troubles.