Print

Please login or register.
1 Hour 1 Day 1 Week 1 Month Forever
Login with username, password and session length

[JamesV6CDX]

Appears to be the inlet port, if I wipe my finger in there it's wet with white spirit, whereas exhaust port looks dry

In fact I may have mis judged, pot 6 is now half emptied between now and my previous post...

[05omegav6]

That would be consistent with the first picture in the thread I linked to... although compression was only a touch down

[Marks DTM Calib]

That's still nothing, on Brians car, which had a lump missing out of the exhaust valve, the compression ratio achieved was similar but the fluid ran out in seconds...... 

[JamesV6CDX]

Shall I start removing valves?

[JamesV6CDX]

[Marks DTM Calib]

On that cylinder its worth doing so, check if the guides are tight. 

[Steve B]

The valves that took the least were the two inlets on pot 2

[JamesV6CDX]

On that cylinder its worth doing so, check if the guides are tight. 

Ok just making a cuppa and I will go and dust off the spring compressor

I've just spent the last hour removing a proven good head from my 3.2 project, we are looking to refit this / retest tomorrow

[JamesV6CDX]

I accept it may be the pictures/angle, but I'm still not convinced those pistons look true in the bores.......

I will have a look at the one I just stripped for comparison...

[JamesV6CDX]

I also say the damage to the piston crowns and heads is too excessive to be a plug electrode

I also don't buy that it's happened to all three cylinders...

Given it was ok before it was worked on, some sudden event has caused this loss of compression.

But what?

[Marks DTM Calib]

Its not, that is pretty typical plug electrode damage......but how come those pistons are not pocketed.....is there an R number on the block code?

[Marks DTM Calib]

Maybe the Y32SE ones are not pocketed, the Y26SE ones are.....

[JamesV6CDX]

[JamesV6CDX]

This is the no6 inlet valve from the port where most of the damage was...

[JamesV6CDX]