TT-DEK Posted April 15, 2007 Share Posted April 15, 2007 Got my oil and filter done today, and just checked the oil level and it seems a little over the full mark? Will this be ok. Engine is still slightly warm. Going to pod next week and need it perfect!, don.t want any surprises whilst there, like seals going? Again, level is slightly over but will this be ok? Link to comment Share on other sites More sharing options...
wkdtime Posted April 15, 2007 Share Posted April 15, 2007 Should'nt be a problem bud aslong as it's just over, I've done it a few times and never encountered any problems as a direct result of it. Link to comment Share on other sites More sharing options...
TT-DEK Posted April 15, 2007 Author Share Posted April 15, 2007 Thanks buddy. With running at pod next week, didn,t want to much pressure causing problems, full pelt down that strip?? Link to comment Share on other sites More sharing options...
Paul_SWZ Posted April 15, 2007 Share Posted April 15, 2007 the oil level should be half way between the low and high mark on the dipstick when cold. if the oil level is over the max you will run the possibility of blowing a seal ! I would drain some out if you are going to the POD ! Link to comment Share on other sites More sharing options...
wkdtime Posted April 15, 2007 Share Posted April 15, 2007 In that case.....you'll defo burn it off on the strip:) Link to comment Share on other sites More sharing options...
wkdtime Posted April 15, 2007 Share Posted April 15, 2007 the oil level should be half way between the low and high mark on the dipstick when cold. if the oil level is over the max you will run the possibility of blowing a seal ! I would drain some out if you are going to the POD ! The 2JZ is more likely to blow seals due to a faulty breather system. You'd be suprised how many people actually fill it just over max when on the strip or track to assist the fuel pressure. Link to comment Share on other sites More sharing options...
Paul_SWZ Posted April 15, 2007 Share Posted April 15, 2007 im not keen on that idea myself but each to there own and slightly confused as to how it assists the fuel pressure ? Link to comment Share on other sites More sharing options...
Digsy Posted April 15, 2007 Share Posted April 15, 2007 Fuel pressure is probably a typo, but it wont assist with the oil pressure either. As far as I'm concerned its fine to fill all the way to the MAX mark as long as you check it when the oil has fully drained down. You probably hold half a litre of oil up in the lube system and head after startup. Overfilling will NOT cause you to blow any seals. If you really go overboard and fill it up to a point where the seal is actually bathed in oil then your crank will be mashing around in it and you will have all sorts of oil aeration issues. Since you aren't pulling any bonkers lateral G I would have thought that less oil was actually better for drag racing. Less mass to carrry around and maybe less windage losses from the crank. Link to comment Share on other sites More sharing options...
wkdtime Posted April 15, 2007 Share Posted April 15, 2007 im not keen on that idea myself but each to there own and slightly confused as to how it assists the fuel pressure ? My bad, wrongly worded, On trackdays, it's common practice to overfill the oil to avoid the risk of the oil pick up pipe not picking up the oil in the sump under hard cornering at 6500rpm. Link to comment Share on other sites More sharing options...
Paul_SWZ Posted April 15, 2007 Share Posted April 15, 2007 The reason seals blow from overfilling engine the oil is due to the oil preventing the engine from breathing properly out of its breather system. It is NOT a good idea and that is why we have MAX marks on the dipstick. Link to comment Share on other sites More sharing options...
TT-DEK Posted April 15, 2007 Author Share Posted April 15, 2007 OK fella,s. Looks like i,ll have to let some out? Shat!! £47.00 for 5 litres. Im sure i got ripped!!! Link to comment Share on other sites More sharing options...
Sheefa Posted April 15, 2007 Share Posted April 15, 2007 DRAIN IN, DRAIN IT, DRAIN IT!! I MEAN that too mate. Link to comment Share on other sites More sharing options...
wkdtime Posted April 15, 2007 Share Posted April 15, 2007 The reason seals blow from overfilling engine the oil is due to the oil preventing the engine from breathing properly out of its breather system. It is NOT a good idea and that is why we have MAX marks on the dipstick. I think your wrong there, not with the 2JZ (talking about seal failures) Blocked breather pipes or PVC's cause most failures.....which is not caused by excess oil....but rather poor service. I cant remember the last time someone blew a front or rear seal due to overfilling the oil slightly. Link to comment Share on other sites More sharing options...
Sheefa Posted April 15, 2007 Share Posted April 15, 2007 Regardless, why risk it for the sake of getting down on your knees, undoing the sump plug and draining a litre or so of oil in 5 minutes? Link to comment Share on other sites More sharing options...
Paul_SWZ Posted April 15, 2007 Share Posted April 15, 2007 I think your wrong there, not with the 2JZ (talking about seal failures) Blocked breather pipes or PVC's cause most failures.....which is not caused by excess oil....but rather poor service. I cant remember the last time someone blew a front or rear seal due to overfilling the oil slightly. if you cant remember the last time there must of been a time ! Answer this then what is the MAX mark for ? and what happens to an airway when partially fill it with fluid ? Link to comment Share on other sites More sharing options...
TT-DEK Posted April 15, 2007 Author Share Posted April 15, 2007 Hi Fellas, looks like at least half of litre over?? Link to comment Share on other sites More sharing options...
Pixelfill Posted April 15, 2007 Share Posted April 15, 2007 See what happens when you try stuff without me around Mike Link to comment Share on other sites More sharing options...
TT-DEK Posted April 15, 2007 Author Share Posted April 15, 2007 Mike, i must admit, im lost without you buddy. Now get your booty round tomorrow night and help me?? May need your jack, as well as mine? just to raise it enough to get to plug Link to comment Share on other sites More sharing options...
Digsy Posted April 16, 2007 Share Posted April 16, 2007 The reason seals blow from overfilling engine the oil is due to the oil preventing the engine from breathing properly out of its breather system. It is NOT a good idea and that is why we have MAX marks on the dipstick. Yes, that would happen IF you managed to fill your engine so full of oil that the bottom end of the breather chimneys were submerged. Now I can't claim to know precicely where these are on the 2JZ block, but I would hope that they were high enough that they wouldn't be submerged under a sustained lateral 1g. This should put them a pretty long way up the side of the block. At zero lateral g (like on a drag strip) I seriously doubt that it would cause an issue, and for regular cornering the margin of safety will be reduced by overfilling, but for regular driving I reckon the worst you would get would be a brief puff of smoke out the exhaust as you sucked a bit of oil up into the head and out into the breather systrem. Don't get me wrong, I'm not saying that this is a good thing, but I don’t think he is going to blow out a seal immediately. Sustained 1g cornering at max revs, possibly. Regular driving? I doubt it. In a straight line at Pod? Probably not. Mind you, at half a litre over the max mark, it probably is worth draining some out because it will be getting close to blocking the turbo oil drain when sat level. Link to comment Share on other sites More sharing options...
SUPRASUZUKI Posted April 16, 2007 Share Posted April 16, 2007 What does 1/2 litre look like in terms of mm over the max mark? It can't be more than a few mm. I know of at least one OEM that tests engines at + and - 1/2 litre as a safety factor against just this sort of eventuality. Link to comment Share on other sites More sharing options...
Sheefa Posted April 16, 2007 Share Posted April 16, 2007 What does 1/2 litre look like in terms of mm over the max mark? It can't be more than a few mm. I know of at least one OEM that tests engines at + and - 1/2 litre as a safety factor against just this sort of eventuality. Mine was approx 1 inch over the FULL marker and that was about 1.5 litres overfilled. So, 2.5 cm to an inch, 0.8 for a 1/2 litre. Link to comment Share on other sites More sharing options...
silvershark44 Posted April 16, 2007 Share Posted April 16, 2007 Mine was approx 1 inch over the FULL marker and that was about 1.5 litres overfilled. So, 2.5 cm to an inch, 0.8 for a 1/2 litre. wow!! Link to comment Share on other sites More sharing options...
Marco Posted April 16, 2007 Share Posted April 16, 2007 Who overfilled it? Link to comment Share on other sites More sharing options...
Sheefa Posted April 16, 2007 Share Posted April 16, 2007 Rich kindly drained the excess stuff out so not a problem. But she was smoking like hell, and still is! Link to comment Share on other sites More sharing options...
SUPRASUZUKI Posted April 16, 2007 Share Posted April 16, 2007 Mine was approx 1 inch over the FULL marker and that was about 1.5 litres overfilled. Fcuk me, that's going some!!! I normally run at max or max+ a mm or 2. Have done in all my cars and bikes for the past 25 years, with no issues (no apparent issues anyway). Link to comment Share on other sites More sharing options...
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