WillRB25

Also had the compressor housing off and started it up and pretty much leaked within 5 seconds of turning the key? surely if it was drain related it would take longer to build up the oil to leak ? took the turbo off and cleaned the chra again and quite a fair amount of metal dust came out. Maybe the oil cavities were blocked with all this shit and just poured out the seals ? I’m going to modify my oil fitting into the block today. it’s parallel with the floor so i might weld a small bend on it so my oil drain hose fits into it more naturally. haven’t tried it back up yet. If still doesn’t work I think it can only be: •inadequate piston rings/gap? •excessive crank case blow by •restrictor needed? Although JBs don’t need one Any help greatly appreciated ok update I tried today, I took the fitting off the block and there was no blockages. I also changed oil and filter to 10w 40. I haven’t tested for excessive blow by but I did have the breathers off and the dip stick never blows out? it is safe to rule out blow by? im thinking of going down to an3 feed. I don’t want to be that guy that tries to solve oiling issues by restricting but I’m desperate lol. Or should I send it away to get professionally rebuilt? I would of bought a replacement a while ago but I cannot find a hx32 anywhere online.

I also found these which would suggest it is drain related ? The guy doesn’t even use the “oil seal” in the 2nd video. And still doesn’t leak oil. Although I checked the drain tube and is clear. I will now check the fitting into the block as that could be blocked. Or one or both oil cavities to the bearings could have a tiny bit of Debris blocking them. I also found turbo lab of America suggested minimum thickness of 10w-30 with journals as *sometimes* oil can get out if the oil isn’t thick enough. Interestingly I changed to 5w50 (although recommend for rb25s) around the time I changed the turbo to the holset. My next steps are inspect drain fitting and give a good clean to both journal feed cavities. If no success I will change oil to some sort of 10w.

Hi all, I was wondering if you could give some advice. Ok here’s the story. Sorry for long read. I have a HX32 for an rb25, I had an an10 drain. Discovered it was too small for the holset. Oil didn’t drain quick enough, and leaked out core. I made up a 20mm ID steel drain for the turbo. I decided to take the turbo apart to clean it as I feared it was contaminated from being in the shed (it was) so i rebuilt it with China kit. After a few mins idling, It leaked oil out compressor side. I later found out the part numbers weren’t compatible (although the parts looked identical ?) I thought ok I will source a quality kit(Mellet) specifically for the Hx32w. But sadly it’s leaking again from the compressor side. You can see the oil coming out the compressor wheel. I read on mellet they can leak at idle ? but will get not leak if upto engine speeds. I cannot get upto engine speeds as it’s a project and needs mapped etc and bits and bobs. But it didn’t leak oil before I rebuilt it and again it only idled. I have double checked all the usuals. My Drain isn’t blocked. the drain is basically bang on vertical. I have disconnected the oil breather lines. It’s an An4 feed. Do you think I should try a restrictor? I know a restrictor should not be necessary though... I’m fed up and on the verge of just buying another turbo but I’d rather not as I’m sure you know a genuine holset HX32 is hard to come by. Thinking of buying hx35 chra and putting my 32 stuff on it. The current oil level is a little on the low side, however still between min and max. Maybe it needs more oil to build pressure perhaps ? Thanks.