Rb25det Using Oil And Water

[nissan200sx.dk]

Hi.

Did a RB25DET swap into my s13, ran perfect for 3 weeks, then bolt for pully tensioner broke. Bend 24 valves that way. Only a few degrees, but bend.

Bought a second engine. took valves from that and mounted it in my "old" head, valves were grinded to fit seats.

Put it all together with a new headgasget, and now the car uses oil and water...... What could be the problem?

I have come to these:

Broken block

Broken head

Broken headgasget. (Maybe damaged when mounting it)

Valve seals. The little thing on top of valve guides.

Turbo

Or headgasget is not bolted proberbly down to block, because of debris in bolt holes in block so head couldnt be tighted down? Also maybe this reason if block is broken..

Any help would be really appriciated.

[race_snooze]

i would say after bending your valves (f**k what a mess sorry dude) your guides are out to shit, but then again water and oil would tell me head gasket..... I am no machanic though

[nissan200sx.dk]

if it was only oil, yeah i would say valves / guides area..

But water also... Headgasget, or broken head / block?

Will try today, and clean out the bolt holes to mount the head. Loosen one bolt, clean hole, touque bolt again. Could be debris in bolt holes, so head cant be tightend down....??

When i drive the car steady out the highway there is no smoke, but when i have engine braked and give gas again it will smoke. If i engine brake long enugh it will also smoke.. At idle there is no smoke either, when reving it, it will smoke though. It starts on all 6 cylenders when hot or cold.

There is no water in oil, or oil in water.

[The Dan]

valve stem seals is the most likely cause of that problem you are describing.

As for the using water...how much is it using? how hot is the engine getting?

You might just need to bleed the system correctly. Maybe the thermostat is not opening or delayed etc.

[nissan200sx.dk]

It is not using water..

Water usage was traced to a leeky hose.. But oil symptoms are not changed.

Have ordered new valve stem seals, so will try and change those.

Thanks for replys.