Rods, which way around?

Started by NigelC, September 27, 2015, 02:31:47 PM

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NigelC

I have dismantled an Alfa 1962cc four cylinder engine and have marked and photographed every bit so I can get it all back together correctly except for one vital piece ... actually four vital pieces and that is the rods.  They are of course assymetric so the question is, which side goes to the front of the engine (i.e. Cylinder one)
A. The 'fat' side, or
B skinny side

The workshop manual is pretty sketchy on this sort of detail!
Current 2017 Giulia Veloce - Red
Current 1979 Alfa GTV - Ivory (Gp S racer)
Past 2007 Alfa 159 2.2 JTS Rubino Red
Past 2003 Alfa 156 2.0 JTS Red
Past 1979 Alfa GTV Red/Rust

giulia_veloce

BABA

From the front of the engine

Cyl 1= B
Cyl 2=A
Cyl 3= B
Cyl 4= A

NigelC

Current 2017 Giulia Veloce - Red
Current 1979 Alfa GTV - Ivory (Gp S racer)
Past 2007 Alfa 159 2.2 JTS Rubino Red
Past 2003 Alfa 156 2.0 JTS Red
Past 1979 Alfa GTV Red/Rust

Craig_m67

'66 Duetto (lacework of doom)
'73 1600 GT Junior (ensconced)
'03 156 1.9JTD Sportwagon (daily driver)

NigelC

Current 2017 Giulia Veloce - Red
Current 1979 Alfa GTV - Ivory (Gp S racer)
Past 2007 Alfa 159 2.2 JTS Rubino Red
Past 2003 Alfa 156 2.0 JTS Red
Past 1979 Alfa GTV Red/Rust

Mick A

If ever in doubt with these just remember the small end bush must be sitting central on the gudgeon pin. If it isn't, the rod is the wrong way around.

Cheers.