[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] RE: UR-Q Timing belt BROKE (was: '85 UR-Q Won't Start)
In message <LOBBJPOCJCJLNHEGFLBKMEODDAAA.epicfoto@lava.net> "David Thoresen" writes: > Well I found out that the rotor did not rotate when I tried to start the > engine, then I noticed the cam did not rotate either. Then I looked for > the timing belt in the window by the timing belt cover... IT WAS GONE... Guys - this is the _second_ one on the list in a few months, and I know of two others within the UK club. Absolute limits (never drive the car further - ever) are 60,000 miles for the belt, water pump and idler roller, and six years for the belt. As Jim Haseltine will attest - this is an expen$ive failure. The following may need slight adaptation for a WR - there's no turbo water cooling, for instance: ======================================================================== MB/1B engine - cylinder head removal Drain coolant Remove oil filter to empty head galleries [MB] Remove headlight trims, radiator grill, bonnet release cable, transom & auxiliary radiator [1B] Remove radiator grill & intercooler Loosen hydraulic pump pivot bolt, slacken and remove belt, remove adjuster, remove pivot bolt & tie pump out of way Detach hydraulic pump mounting from head and temporarily re-attach to pump Remove injector cooling fan deflector, plug wires, plug wire shroud & distributor cap Unplug Hall sensor Remove spark plugs Remove upper cambelt cover & upper securing stud Turn engine to TDC (cam/distributor) using spanner on cam wheel bolt or #2079 on harmonic balancer bolt Lock crankshaft with tool #2084 Loosen water pump & rotate to loosen cambelt Apply cable tie to cambelt below cam gear Break cam gear bolt loose (80Nm) - use #3036 if available in preference to cable tie Undo cable tie and pull cambelt off cam gear Remove cam gear & Woodruff key [MB] Unplug & unscrew injector cooling fan & turbo after-run water pump from side of block Unplug control pressure regulator, unbolt from side of block & place on metering head - fuel lines stay attached Unplug cold start injector, unscrew from manifold & place on metering head Pull out injectors & place on metering head Unplug fuel consumption potentiometer & fuel frequency valve, switch on throttle body & cut cable ties to metering head [MB] Loosely tie detached fuel pipes to metering head, undo fuel feed & return, pull off breather hose, disconnect accordion hose, unclip air filter housing, llift out entire fuel injection system & remove air filter housing [1B] Remove air filter cover Tie loose loom back to filter housing bracket Remove crankcase & cam cover breathers Disconnect injector cooling fan thermoswitch & remove heatshield & coil grounding strap from cam cover Remove right CV joint heat shield Disconnect downpipe from centre exhaust section & detach downpipe from gearbox mounting Using a 3/8ths drive 13mm six-point socket & a taped UJ, undo wastegate to downpipe nuts - assistant required Detach both vacuum pipes from wastegate Unbolt wastegate from exhaust manifold & remove Undo turbo oil & water connections & remove upper oil line Detach bracket holding upper turbo water feed from side of block Detach downpipe from turbo & push aside Detach turbo to intercooler hose Detach turbo from manifold & remove from car Detach accelerator cable Detach temperature sender wire, wastegate main feed, wastegate control valve feed, ECU feed & differential lock feed from rear of head & manifold Remove injector air supply hose Using a mirror and "removal grade" Allen drivers, unscrew and remove inlet manifold Unbolt top water hose from side of head Detach wire from temperature sender below steering pump Remove cam cover Slacken head bolts from outside inwards, half turn at a time -- Phil Payne UK Audi quattro Owners Club Phone: 07785 302803 Fax: 0870 0883933
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