Conrod bearings problem. Big one.

[caterpillar]

if you have the oilfilter housing of the block: carefuly; there are a "bleedbackvalve"; who has to be loose in the housing....it coult have some issues with the oilpressure too...it have to be some in6 skrew....
and if you does have a defect oilfilter( not audi one) and have the inside leek; you does NOT have oilpressure on the bearings....

[nemilosu]

When u put the bearings in, did you lubricate them?
Could be an oil pressure problem.

Why did you change the old bearings?

yes i lubricate them.
i change because i'am idiot .

[nemilosu]

if you have the oilfilter housing of the block: carefuly; there are a "bleedbackvalve"; who has to be loose in the housing....it coult have some issues with the oilpressure too...it have to be some in6 skrew....
and if you does have a defect oilfilter( not audi one) and have the inside leek; you does NOT have oilpressure on the bearings....

ok. i understand now.
thamk you.

[repo]

did You check the bearing play (clearance) when installed? There is no use if people try to guess what went wrong, as there are all possible scenarios:

-wrong clearance
-damper/other imbalance issue
-oilpump problem
-oilpump drive gear loose
-debris in oil gallery, would hit head first', though...
-bent connecting rod
-scratches in the journal
-deformed big end

If You rebuild with same manners You did the previous rebuild, You will most likely have same issues, as You cured the symptom, but not the disease.

[nemilosu]

-wrong clearance-- i don't know how to check
-damper/other imbalance issue-- i will check
-oilpump problem --i will change it
-oilpump drive gear loose--i will check
-debris in oil gallery, would hit head first', though...--i will check
-bent connecting rod--i don't know how to check
-scratches in the journal--i don't know how to check
-deformed big end--i don't know how to check--

thanks again for advices and for your patience

[nemilosu]

some pieces

[Pirvu Eugen]

What part number are the rod bearings?

[nemilosu]

77 244 600 conrod
77 209 602 main bearings
78 639 600 trust bearings
they are good ?

[Error404]

I recommend investing in some plastigauge at the very least this time, ideally getting the tunnel bores & rods checked for straightness - also definately check the big ends for roundness.

[AndyP]

[COLOR="Red"]
-wrong clearance-- i don't know how to check
thanks again for advices and for your patience

You need this to check the clearance

http://cgi.ebay.co.uk/Plastigage-Pla...item4838852478

Big ends should be 0.010-0.052mm according to the 3B shop manual.

[nemilosu]

thank you

[nemilosu]

thank you all.
the engine was rebuild and is runing fine.

[Costash]

Hurey!!!