Ski-Doo Formula S 1998, Shop Manual

Page: 101 / 338

Section 04 ENGINE
Subsection 04 (LEAK TEST AND ENGINE DIMENSION MEASUREMENT)
04-04-4
4. Remove rotary valve cover and check for leak
of rotary valve seal with soapy water.
1. Seal
5. If leak still persists, it indicates a defective cast-
ing somewhere in engine.
Disassemble engine and carefully check for de-
fects in castings. Pay attention to tapped holes
which may go through engine sealed area and
thus leading to leakage.
FINALIZING REASSEMBLY
After reassembling engine, always recheck for
leakage.
COOLING SYSTEM LEAK TEST
Install special plug (radiator cap) (P/N 529 0214 00)
and hose pincher (P/N 529 0099 00) on overflow
hose. Pressurize all system through coolant reser-
voir to 15 PSI.
Check all hoses and cylinder/base for coolant
leaks. Spray a soap/water solution and look for
presence of air bubbles.
TYPICAL
A01D1BB
1
A01B4AA
529 0099 00