[urq] Rebuild engine seizes after 15sec's . ( non audi ) followup

[Patrick Carlier]

No I didn't .
I figured these  were known good bearings
worn in unison with the crankshaft . So no need to check them .

I'll  gauge the new ones that's for sure .  .

Pat


----- Original Message ----- 
From: "Chris" <kleinbiker1 at aol.com>
Cc: "audifans urq" <urq at audifans.com>
Sent: Friday, October 31, 2014 5:37 PM
Subject: Re: [urq] Rebuild engine seizes after 15sec's . ( non audi ) 
followup


> Use any plasti gauge during assembly to check the bearing clearances?
>
>> On Oct 31, 2014, at 11:59, "Patrick Carlier" <p.carlier at pandora.be> 
>> wrote:
>>
>> So I pulled the engione today , and took it apart .
>>
>> Pistons , rings and bores are good .
>> Pistons can be pushed out with an index finger .
>> Bearing shells look ok and are certainly not seized .
>>
>> Crankshaft turns heavier as TDC's are approached .
>> Both on the outer and inner pistons .
>> Finally  I looked at the main bearings , and the nr 5 is totally gone .
>> Fused to the crankshaft , and the shell  started turning in the bearing 
>> cap .
>>
>> So  I guess I found the problem ,  but I haven't got a clue why this 
>> happend .
>> Oil channels are free , no cracks anywhere ...
>>
>> What worries me now is that this is the 1500 block wich had severe big 
>> end damage .
>> It's main bearings were also showing the copper layer , but all five of 
>> them were nicely equally worn
>> Tis could indicate  a problem with the oil feed somewhere .
>> I already used the oil pump and filter mount etc from the known good 1600 
>> ..
>>
>> I 'll call it a day for now .
>>
>> Big thx to everyone for the many reactions .
>>
>> Pat
>>
>>
>>
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