hello all
Iv got a pd130 with 17/22 turbo WI and all the norm bits to go with it. Was making 268bhp and 412lbft for over 2 years (22k miles) up untill a couple of weeks ago. Was going along at 85mph when it started running on three. so did the norm compression check and no4 was down, so thort head gaskit. when i ripped the head off i found that no4 piston has what i can only describe as melted the top on one side it has got very hot and saged. found no damage to rings or bore
Anyone had this or any ideas what it could be corsed by? was thinking if my injectors spray pattern was very bad it would only cool some parts of the piston with the fuel duse this sound right?
thanks
Iv got a pd130 with 17/22 turbo WI and all the norm bits to go with it. Was making 268bhp and 412lbft for over 2 years (22k miles) up untill a couple of weeks ago. Was going along at 85mph when it started running on three. so did the norm compression check and no4 was down, so thort head gaskit. when i ripped the head off i found that no4 piston has what i can only describe as melted the top on one side it has got very hot and saged. found no damage to rings or bore
Anyone had this or any ideas what it could be corsed by? was thinking if my injectors spray pattern was very bad it would only cool some parts of the piston with the fuel duse this sound right?
thanks