Andrew Posted November 11, 2002 Share Posted November 11, 2002 This may seem a bit paranoid but it's a little concern that's been playing on my mind. I sold my MKIII to a mate last year, he's just had a new gasket on the turbo fitted. Problem was when the garage replaced the turbo, it started to pink and black smoke was bellowing out the exhaust. They sent the turbo off to a specialist. They inturn found that the turbo had not been bled with oil when it was replaced. The turbo was basically spun dry and died. So my question is this. When a turbo'd car has an oil change/filter, do you have to bleed the turbo when the oil is drained from the car? This garage was obviously clueless, just worried that when I get an oil change this could happen to me. Hope the two are not related. Quote Link to comment Share on other sites More sharing options...
Alex Posted November 11, 2002 Share Posted November 11, 2002 I tend to change whilst the engine ad oil is still warm as I hope this will help the fluid drain out.... not even sure how to actually drain the turbo's, directly, of oil.... Quote Link to comment Share on other sites More sharing options...
Druid Posted November 11, 2002 Share Posted November 11, 2002 As far as I know replacing a turbo and changing an oil filter are two entirely different things. When you replace a turbo (or remove it prior to replacing gaskets), you will need to get some oil into the thing to prevent it running dry. Quote from some automotive tuning site: "Next, crank the engine for approximately one minute with the ignition and fuel system disabled in order to have sufficient lubrication on the first start. Crank for 10 seconds at a time so as not to overheat the starter." So all in all, don't worry about replacing your oil filter. Quote Link to comment Share on other sites More sharing options...
Terminator Posted November 11, 2002 Share Posted November 11, 2002 Never heard of it. When you do an oil change there are losts of spots where the old oil stays and does not get drained. I guess fitting new turbos with out oil in the sytem may cause an air lockand prevent flow to the bearings. But I can't find any mention of a bleed process for the MKIV on changing turbos in the Toyota manual. Quote Link to comment Share on other sites More sharing options...
adi Posted November 11, 2002 Share Posted November 11, 2002 You dont 'bleed' the turbos when fitting them, you just have to make sure they're full of oil when you're refitting them... something the garage that replaced the old one your mk3 obviously failed to do. Draining the turbos on an oil change would do more harm than good (unlesss you went through the refill procedure every time)and is pointless. When refitting turbos, the precedure is to fill the units with oil, fit them to the car, run the car on stater motor to get the oil pumped around the turbo casing, check to make sure the oil is returning out of the turbo return oil pipes, then start the car... otherwise you have a dead turbo within minutes. I was totally paraniod when replacing mine.. my mechanic mate got well pissed off as i made triple sure the little buggers had oil in them. Quote Link to comment Share on other sites More sharing options...
Andrew Posted November 11, 2002 Author Share Posted November 11, 2002 Thanks all puts my mind at rest Quote Link to comment Share on other sites More sharing options...
adi Posted November 11, 2002 Share Posted November 11, 2002 You dont 'blled' the turbos when fitting them, you just have to make sure they're full of oil when you're refitting them... something the garage that replaced the old on your mk3 obviouslt failed to do. When refitting them, the preocedure is to fill the units with oil, fit them to the car, run the car on stater motor to get the oil pumped around the turbo casing, check to make sure the oil is returning out of the turbo return oil pipes, then start the car... otherwise you have a dead turbo within minutes. I was totally paraniod when replacing mine.. my mechanic mate got well pissed off as i made triple sure the little buggers had oil in them. As for drainng oil from the turbos on an oil change, this would do more harm than good and is pointless. Quote Link to comment Share on other sites More sharing options...
Terminator Posted November 11, 2002 Share Posted November 11, 2002 Manual for TT says add 20cc of oil to each turbo and turn impeller to wet bearing on new installs. Quote Link to comment Share on other sites More sharing options...
adi Posted November 11, 2002 Share Posted November 11, 2002 Blimey, thats the absolute minimum you should do.. Quote Link to comment Share on other sites More sharing options...
Terminator Posted November 11, 2002 Share Posted November 11, 2002 It will probably be on MKIV.com. It is on page EG-183 of the UK engine manual. Oil is not mentioned again AFAICS. I guess you could get more in by putting some in the oil pipes later in the install. Quote Link to comment Share on other sites More sharing options...
Ian C Posted November 11, 2002 Share Posted November 11, 2002 Facking hell - I've put my hybrids off and back on again twice and never done this. But then I always let it idle up to operating temperature afterwards while checking for gas & fluid leaks etc., maybe that's saved my backside? -Ian Quote Link to comment Share on other sites More sharing options...
Terminator Posted November 11, 2002 Share Posted November 11, 2002 Lucky:conf: Quote Link to comment Share on other sites More sharing options...
adi Posted November 11, 2002 Share Posted November 11, 2002 Most of the time you'll be fine.. the idea of checking the flow both pre turbo and post turbo is to make sure you have connected everything exactly and not squashed any gaskets etc preventing oil flow... or maybe left a leak causing oil pressure drop to the turbos. Turbo technics will supposedly invalidate the warranty if you dont follow this procedure.. Dont worry, if you hadnt done it right you'd know about it by now Quote Link to comment Share on other sites More sharing options...
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