flat

Well-Known Member

• Apr 14, 2015

• #21

i think your going to have to take the cylinder head off to find out. need to look a the valves and such

 

Turboman

Mab An Gov

• Apr 14, 2015

• #22

parchwba said:

Checked Tappets and they were fine. However, didn't seem to be much compression on the engine at all.
Got it started though not on all four cylinders.
When it was running (with lots of black smoke), I took off the injector pipes one at a time and with injector pipe off cylinder 2, no difference to lumpy running except that the smoke stopped coming out and engine was running clean but on just three cylinders.

Any ideas? Is this duff valves or duff cylinder?

Click to expand...

Probably worth removing the head and having a look. Head gasket, valves, cracked piston would all be obvious with head off.

 

parchwba

Active Member

• Apr 15, 2015

• #23

Will be taking the head off weekend all being well.

 

parchwba

Active Member

• Jun 19, 2015

• #24

Finally got started.

When taking the inlet manifold off, I noticed that all inlets were full on dirty cruddy oil.

One of which was wetter than the others. No water though.

What would cause this please?

 

SpringDon

Well-Known Member

• Jun 19, 2015

• #25

You mean the inlet tracts? Either valve guides/seals seriously shot or rings/pistons leaking and pressurising crankcase (does a crank breather route into the manifold?)

You might want to sort it quite soon as lots of oil into a diesel can be bad news.

 

parchwba

Active Member

• Jun 19, 2015

• #26

The wet fresh oil is in cylinder number 2 inlet which is the one that wasn't firing.

There is a breather from the rocker cover that goes to the inlet manifold.

 

Turboman

Mab An Gov

• Jun 20, 2015

• #27

parchwba said:

The wet fresh oil is in cylinder number 2 inlet which is the one that wasn't firing.

There is a breather from the rocker cover that goes to the inlet manifold.

Click to expand...

Have a look at valve guide seals etc. although it is possible the oil got there during removal.

Try pulling the tube off when it is back together and running, see if there is oil vapour pouring out of the tube.

 

parchwba

Active Member

• Jun 22, 2015

• #28

I think it's terminal as far as I'm concerned the piston head has chips on the edge and the head has all carbonised.






What could have caused this, old age?

Head gasket just fell apart, so couldn't see any faults.

 

D

Dean Whittam

Member

• Jan 25, 2016

• #29

Hi sometime s the tip off the heater plug breaks off and gets stuck under the exhaust valve but this would evident on checking the tappet gaps one would be a bit bigger on no 2 cylinder could be a burnt valve . But if it's blowing oil out the breather it's pressuring the sump poss head gasket or if your unlucky melted or broke piston in no 2 . Did they say whether the injectors were bad if one was really bad I'd suspect piston has a hole in it .

 

ging360

Active Member

• Jun 1, 2016

• #30

I had this problem soon after the water pump started leaking, after replacing it the responsiveness and power has come right back up.