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no oil in sump and bottom end gone


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so long story short, i sold my starlet to a kid who ragged it to the limiter all day everyday and now ive bought it back for 'spares or repair' as the bottom end has gone.

his description was he was just driving and it started knocking and when he got home there was oil everywhere.

ive looked and there are no holes in the block or sump. sump has now been removed and the crank and rods are still connected etc although 3 bearings closest to oil pump have spun (due to no oil i guess)

question is; where has the oil made its way out? my guess is oil seal either side of crank or blown oil pump through side - any suggestions where to look first, no prize for correct guess 😉

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clean all over, thats whats got me scratching my head on it. no oil on the outside/engine bay and no oil inside the sump. no holes in the block but oil residue over all the timing gear and belts etc. engine isnt seized but  rod 1 2 and 3 are rattling at the crank. sump plug was done up tight too (unless of course this has all been rectified after the issue happened)

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parts condition when removed:

WhatsApp-Image-2020-02-02-at-18.18.35.jp

WhatsApp-Image-2020-02-02-at-18.18.35-1.

WhatsApp-Image-2020-02-02-at-18.18.35-2.

WhatsApp-Image-2020-02-02-at-18.18.35-3.

 

Parts after a cleanup

WhatsApp-Image-2020-02-02-at-18.18.36.jp

WhatsApp-Image-2020-02-02-at-18.18.36-1.

WhatsApp-Image-2020-02-02-at-18.18.36-2.

note: i removed the black rubber when cleaning 

WhatsApp-Image-2020-02-02-at-18.18.36-3.

...and lastly the shreaded bearing on piston 4 (seeing as i said 1-3 were goosed, 4 was worst)

WhatsApp-Image-2020-02-02-at-18.18.36-4.

WhatsApp-Image-2020-02-02-at-18.18.36-5.

 

Crank journal measuremnt (ive had this one ground before so 0.25 smaller then standard)

1 - 43.097

2- 43.074

3 - 43.090

4 - 43.092

Not really much room for more grinding so onto my spare 5e crank which measures at:

1 - 43.366

2 - 43.344

3 - 43.351

4 - 43.356

 

i really want to be able to transplant the crank without taking the engine out so need to find where all the oil would of disappeared from, it has to be oil pump side as it was all over the place but the seals look ok, dont want to do crank works and then problem resurafces - any ideas peeps?

Edited by turbominicooper
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