Hello Everyone!

Seems my 928 is running again, electrical problem found!! Thanks to every one on the list and the relay diagram of the 928 specialists web page.

Now, ALL my fans cut at once at high engine speed, so I don't know which fan belt to buy and what belt is connected to which item of the following:

- AIR FAN PULLEY
- AC COMPRESSOR
- AIR COMPRESSOR
- ALTERNATOR
- STEERING PUMP
- ENGINE PULLEY DRIVING THE BELTS

I kindly appreciate if any1 can find a diagram on the net or explain to me how to get my belts again?

Thanks,

Wael

928S 1984 Aut. (USA)

===========

All belts drive from the crank pulley.
Fan &  Air Pump- 12.5 x 1040
A/C - 12.5 x 1125
Power Steering - 12.5 x 1000
Alt - 5 x 886

Wally Plumley
928 Specialists

=================

Drive belts Porsche 928   www.contitech.de      
Purpose Engine type Porsche Contitech Belt size Belt type Dayco Gates

928S4

928GT/S4

928GTS

M28.41

M28.42

M28.45

M28.46

M28.47

 Timing 928.105.157.10/30/40/ 50 CT 584 (219) 219 tooth, 9, HTD 2086 9,525M25 DY95196 5098XS - 58219- x1 HSN
Alt (01-90 ->, manual) 999.192.266.50 6 PK 858 K6 858 LW Polyrib    
Alt (01-90 ->, automatic) 999.192.347.50 6 PK 875 K6 872 LW Polyrib    
AC (1978-1991) 999.192.305.50 AVX13 X 1125 12.5x1125 V-belt    
AC, sport (1987-1995) 999.192.335.50 AVX13 X 1075 12.5x1080 V-belt    
Air pump (01-1987 ->) 999.192.306.50 AVX13 X 950 12.5x925 V-belt    
Power Steering 999.192.286.50 AVX13 X 1000 12.5x1000 V-belt    

There are two different Alternator poly rib belts used in a S4/GT/GTS series:

999 192 266 50, Poly-rib belt K6-858-LW, for M481 which is manual transmission
999 192 347 50, Poly-rib belt K6-872-LW, for M249 which is automatic transmission

 

Timing belt:

Reference OE:

PORSCHE 92810515740, 92810515710, 92810515750, 92810515730  Producer: GATES  : 5098XS

Reference OEM:

CONTI HTD2086X25, CT584, 6598554, HTD2086-9.525M-25, 8554

DAYCO 94023, 219SP254, 219RP254, 94370, 219SP254H, 219RP254H (DY95196???)

FERODO 48-30598

GOODYEAR 219H9.5P250, G1349H, 25421903, 219H9.5P254, G1349, 219H9.5T250

HAVAM VS 9565

MOPR MTB399

QUINTON HA QTB228

ROULUNDS 219CP254, 219HP254

TRISCAN 8645 5098XS