Myles Posted February 21, 2005 Share Posted February 21, 2005 Hmm - well, I'm up to the 180-mile mark on the running-in exercise of my Apollo'd 1.8k running on cheap 10W40 mineral oil. The great worry has been whether I'm getting water in the oil... I took it for a 50-60mile run today (frozen-snow hurts with an aeroscreen) and I'm somewhat concerned that my oil-pressure 'at revs' seems to have gravitated from around 60psi to the low-50's (and this at only 70 degC or so of OT). In addition, when I pulled the dipstick out for a quick looksee, the oil looks very clean - but also very thin. No sign (on the dipstick - when hot) of mixing oil and water though. When I rub some between my fingers, it doesn't seem *that* slippy... The oil-level is also high - but that could just be because I filled the engine (sump-off) by volume rather than by observation (i.e. I know how much it takes and just slapped that in). ...could this just be the normal behaviour of cheap'n'cr@ppy mineral-oil? My paranoia is rather extreme at the moment.... ...it has occurred to me that the low OP could be due to overfilling - leading to extreme aeration... Project Scope-Creep is underway... Alcester Racing 7's Equipe - 🙆🏻™ Alcester-Racing-Sevens.com Edited by - Myles on 21 Feb 2005 19:19:03 Link to comment Share on other sites More sharing options...
Tim_H Posted February 21, 2005 Share Posted February 21, 2005 paranoia, nothing else. course it's clean, it's only done 180 miles. yes, it's thin, because it's quite thin oil anyway. sounds fine, and oil in water, - if it isn't creamy, nope. Link to comment Share on other sites More sharing options...
Chris__ Posted February 21, 2005 Share Posted February 21, 2005 Looking forward to these feelings of terror during my first few miles. Glad it's coming along now though Myles. Chris. Link to comment Share on other sites More sharing options...
Myles Posted February 21, 2005 Author Share Posted February 21, 2005 Don't do it Chris - I've got a lovely 1.6k in Nigels garage - bit of a 'cornflake' solution (boring, does what it says on the box, reliable) - but it will reduce your stress to manageable levels... Project Scope-Creep is underway... Alcester Racing 7's Equipe - 🙆🏻™ Alcester-Racing-Sevens.com Edited by - Myles on 21 Feb 2005 20:12:24 Link to comment Share on other sites More sharing options...
V7 SLR Posted February 21, 2005 Share Posted February 21, 2005 I'm developing the upgrader's tick. It's an inflection that whenever anyone asks about my new engine, I wince, close one eye and make a "moooing" noise. Can't help it. Driving me mad. There's a lot to be said for giving the car to someone to do all the work and give it back working. I'll never do it, but there's a lot to be said for it. Moooooo Link to comment Share on other sites More sharing options...
Tim_H Posted February 21, 2005 Share Posted February 21, 2005 *arrowup*"but there's a lot to be said for it." true.......true........ Link to comment Share on other sites More sharing options...
oi oi Posted February 21, 2005 Share Posted February 21, 2005 drive it break it fix it improve it drive it break it fix it improve it, repeat until bankrupt :) Link to comment Share on other sites More sharing options...
Myles Posted February 22, 2005 Author Share Posted February 22, 2005 That's me busy until a week on Wednesday then... Project Scope-Creep is underway... Alcester Racing 7's Equipe - 🙆🏻™ Alcester-Racing-Sevens.com Link to comment Share on other sites More sharing options...
Myles Posted February 22, 2005 Author Share Posted February 22, 2005 Overnight thought: My basemap is for a 200bhp VVC-valved head rather than the 180ish std. valve head I have. I didn't reduce the fueling - if anything, I raised it a bit by increasing the injector pulse-width slightly... ...could the 'thin' oil be due to rich-running and associated petrol contamination? Project Scope-Creep is underway... Alcester Racing 7's Equipe - 🙆🏻™ Alcester-Racing-Sevens.com Link to comment Share on other sites More sharing options...
V7 SLR Posted February 22, 2005 Share Posted February 22, 2005 Moooooo Link to comment Share on other sites More sharing options...
Myles Posted February 22, 2005 Author Share Posted February 22, 2005 Nah. The car only moo's in the summer. Something to do with the fuel-tank breather... Project Scope-Creep is underway... Alcester Racing 7's Equipe - 🙆🏻™ Alcester-Racing-Sevens.com Link to comment Share on other sites More sharing options...
tom7 Posted February 22, 2005 Share Posted February 22, 2005 Myles, this can be painful reading sometimes Link to comment Share on other sites More sharing options...
Myles Posted February 22, 2005 Author Share Posted February 22, 2005 Thanks Tom, That's very.... helpful and reassuring.... And the OIL Project Scope-Creep is underway... Alcester Racing 7's Equipe - 🙆🏻™ Alcester-Racing-Sevens.com Link to comment Share on other sites More sharing options...
Sheds Moderator Posted February 22, 2005 Share Posted February 22, 2005 Myles, petrol contamination of the oil is not critical as provided it's getting hot the petrol will evaporate. Diesel is another story and this is one reason why diesels need the oil draining more often. Link to comment Share on other sites More sharing options...
tom7 Posted February 22, 2005 Share Posted February 22, 2005 Sorry Myles Is the oil really any thinner than warm oil in any other vehicle you have checked? I can't think of any reason why new oil would be thinner than it is supposed to be. The preaaure you report is consistent with warm oil & appollo. Petrol contamination could only be coming from blow-by, the oil would smell of this also. If the car runs OK then you probably havn't got much to be paranoid about....until you hear a noise 😬 Link to comment Share on other sites More sharing options...
Myles Posted February 22, 2005 Author Share Posted February 22, 2005 Oh, that noise.... I'm thinking it probably is OK - I put another 30 miles or so on today and it all seems OK. I think it's almost certainly over-fueled (it's drinking petrol lie nobodies business) and it doesn't-half pop and bang now that I've turned the fuel-cutoff-on-overrun on. Something needs more tweaking before I journey to Emerald though - in the last 10 miles or so, it's started cutting-out on the approach to junctions between gear-changes - thank gawd for the big-red button... It's as if it can't catch the idle - although it was perfectly happy when I eventually parked up at home... Project Scope-Creep is underway... Alcester Racing 7's Equipe - 🙆🏻™ Alcester-Racing-Sevens.com Link to comment Share on other sites More sharing options...
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