2052006 10 Posted June 11, 2009 Can I start an engine with no oil in the gear box - ie. driveshafts not in so can't put transmission oil in yet. Is it ok to start/run the engine like this? Share this post Link to post Share on other sites
Rob Turbo 3 Posted June 11, 2009 Yeah, no problem, just don't put it in gear! Share this post Link to post Share on other sites
2052006 10 Posted June 11, 2009 thanks for the quick reply! Share this post Link to post Share on other sites
welshpug 1,627 Posted June 11, 2009 I wouldn't, as the input shaft will still spin unless you hold the clutch pedal down. Share this post Link to post Share on other sites
Matteo 17 1 Cars Posted June 11, 2009 I think that even in neutral gear, with the clutch pedal released the gears inside the gearbox are in rotation. Of course with no load, but they are moving Share this post Link to post Share on other sites
Rob Turbo 3 Posted June 11, 2009 None of the gears are engaged with it out of gear though. Share this post Link to post Share on other sites
Tom Fenton 1,526 Posted June 11, 2009 (edited) They are all still meshed, that is why it is technically called a constant mesh gearbox, e,g, the gears are constantly in mesh, and they may spin. Not to mention all the bearings will be running with no lubrication. Personally I would not under any circumstance, but its your box so up to you....... Edited June 11, 2009 by Tom Fenton Share this post Link to post Share on other sites
2052006 10 Posted June 12, 2009 Thanks for the advice - I put some oil in it! Next question is, is it ok to run the power steering pump with no fluid circulating? Share this post Link to post Share on other sites
Ryan 99 Posted June 12, 2009 Thanks for the advice - I put some oil in it! Next question is, is it ok to run the power steering pump with no fluid circulating? No. The pump is lubricated by the fluid. Share this post Link to post Share on other sites
maxi 36 1 Cars Posted June 12, 2009 In other words, just put all the fluids in and then run it. Maxi Share this post Link to post Share on other sites