16-05-2015, 09:03 AM
My 2005 Berlingo owned form new and on 153k miles has finally developed a possible major fault. It's a 1.9 IDI engine type WJY (DW8B)
A year or so ago it suffered rough starting which my indy could not diagnose. Eventually, although they tested OK, the heater plugs were replaced and problem appeared to be solved - never completely sure though. Problem has re-emerged in last month or so. Engine's also begun to sound off definitely beat when cold although seems OK once it's run for 20-30 secs. Not noticeably down on power/up on fuel use nor losing oil or coolant either.
Investigation reveals low compression in nos. 1 and 2 cylinders. Interim diagnosis is that head gasket has 'gone' creating a leak between those two cylinders that probably closes up at least in part when head warms up.
According to my garage's workshop time software CHG replacement on this car is a major job due lack of space in engine bay. FWIW though Haynes says that while that's true of HDi version the 1.9's head CAN be removed with engine in situ. They're same block with different heads and fuel system.
Garage advice is that cost of lifting engine, stripping etc together with risk that head itself will require testing and may be damaged, make an exchange engine considerably cheaper than a full repair. Cost from £900 up either way. WBAC values vehicle at £500.
Other suggested diagnosis (another forum) involves valve clearances. Is this likely and worth getting these checked.
So questions are:
(1) Any experience of head removal on this engine?
(2) If I stick with it do I go for repair or exchange motor?
(3) Take £500 and run.....
A year or so ago it suffered rough starting which my indy could not diagnose. Eventually, although they tested OK, the heater plugs were replaced and problem appeared to be solved - never completely sure though. Problem has re-emerged in last month or so. Engine's also begun to sound off definitely beat when cold although seems OK once it's run for 20-30 secs. Not noticeably down on power/up on fuel use nor losing oil or coolant either.
Investigation reveals low compression in nos. 1 and 2 cylinders. Interim diagnosis is that head gasket has 'gone' creating a leak between those two cylinders that probably closes up at least in part when head warms up.
According to my garage's workshop time software CHG replacement on this car is a major job due lack of space in engine bay. FWIW though Haynes says that while that's true of HDi version the 1.9's head CAN be removed with engine in situ. They're same block with different heads and fuel system.
Garage advice is that cost of lifting engine, stripping etc together with risk that head itself will require testing and may be damaged, make an exchange engine considerably cheaper than a full repair. Cost from £900 up either way. WBAC values vehicle at £500.
Other suggested diagnosis (another forum) involves valve clearances. Is this likely and worth getting these checked.
So questions are:
(1) Any experience of head removal on this engine?
(2) If I stick with it do I go for repair or exchange motor?
(3) Take £500 and run.....