Lister SR1 Top End Decoke Gasket Set - Lister P/N 657-10737

Other Lister part numbers for this set: 657-10759, 657-10730, 657-10736, 657-10731, 657-10732, 657-10733, 657-10735, 657-10737, 657-10734

Important Note: Please choose carefully, gasket sets that have been opened are non-refundable, unless we have sent you something that was incorrect. If you have any doubts about choosing the correct gasket set, please contact us with your engine number and we will check for you.

The original manufacturer recommendations recommend that the SR1 is decarbonised after about every 1500 hours of run time, or sooner if engine shows loss of compression or blow-by past the piston, this will require the top end gasket set.

Basic Decarbonising Instructions

Decarbonise after about 1500 hours.

1. Remove cylinder head(s).
2. Remove piston(s) and rings.
   All parts must be thoroughly cleaned and washed in paraffin (Kero)

Special care must be taken with regard to:-

1. Recess in exhaust valve guide(s).
2. Valve ports.
3. Piston ring grooves.
4. Combustion chamber(s) in top of the piston(s).
5. Fins must be cleaned on cylinder(s), cylinder head(s) and injector sleeve(s). This is very important.
6. The inside of the piston(s)
7. Regrind valve seats if not in perfect condition.
8. Clean out exhaust piping and silencer.