Hi all,
I don’t post up here often other than for work, but I’m hoping I can draw from your collective experience.
I bought a car to fix up, engine blown, no compression.
So I stripped the engine down, then also stripped the head right back. The engine has variable valve timing as well as lift so has vanos solenoid’s on both intake and the exhaust. So it’s quite an involved process.
Anyway once I had done that I took it to a company to vapour blast it for me before I took it to a machine shop to be skimmed and pressure tested etc. took off a few thou and pressure test came back as good.
That took some time to be completed work got busy etc, so it took me some time to get the engine back up and running.
Anyway fast forward it’s all back together, but getting faults on Vanos, I’ve gone through clearing and re-learning adaptations etc, then I’ve looked at replacing the solenoids (again as they had already been changed during the rebuild) however when I’ve removed them, they’re completely clogged up with Silica (from the vapour blasting)
I cleaned them out, put them back in, ran the car back upto temp, still getting the fault.
Removed them again, and they’re full again.
So I’m now in a situation where I’ve spent a lot of time and money (basically replaced all ancillaries, oil pump, timing chain) and the engine is clearly contaminated with silica left over from when it was blasted.
My question is, is this on me? Is there something I should have done post cleaning etc? I wasn’t given any instructions on anything that needed to be done before it was put back into use? Or should I go back to the company that cleaned it? Or am I just screwed?
Any help or advise greatly appreciated
I don’t post up here often other than for work, but I’m hoping I can draw from your collective experience.
I bought a car to fix up, engine blown, no compression.
So I stripped the engine down, then also stripped the head right back. The engine has variable valve timing as well as lift so has vanos solenoid’s on both intake and the exhaust. So it’s quite an involved process.
Anyway once I had done that I took it to a company to vapour blast it for me before I took it to a machine shop to be skimmed and pressure tested etc. took off a few thou and pressure test came back as good.
That took some time to be completed work got busy etc, so it took me some time to get the engine back up and running.
Anyway fast forward it’s all back together, but getting faults on Vanos, I’ve gone through clearing and re-learning adaptations etc, then I’ve looked at replacing the solenoids (again as they had already been changed during the rebuild) however when I’ve removed them, they’re completely clogged up with Silica (from the vapour blasting)
I cleaned them out, put them back in, ran the car back upto temp, still getting the fault.
Removed them again, and they’re full again.
So I’m now in a situation where I’ve spent a lot of time and money (basically replaced all ancillaries, oil pump, timing chain) and the engine is clearly contaminated with silica left over from when it was blasted.
My question is, is this on me? Is there something I should have done post cleaning etc? I wasn’t given any instructions on anything that needed to be done before it was put back into use? Or should I go back to the company that cleaned it? Or am I just screwed?
Any help or advise greatly appreciated