The Pikey Posted February 4, 2011 Share Posted February 4, 2011 I'm getting about 25 psi at tick over and 50-55 at 5k when oil is hot. This seems low to me. What does the POBC think? thanks Jason Edited by - jason fletcher on 4 Feb 2011 20:48:39 Link to comment Share on other sites More sharing options...
Stationary M25 Traveller Posted February 4, 2011 Share Posted February 4, 2011 Are they hot pressures ? If the 55psi seems low, maybe relief valve not seating properly. ? Link to comment Share on other sites More sharing options...
The Pikey Posted February 4, 2011 Author Share Posted February 4, 2011 Sorry, just edited to add it was hot just after your reply. Jason Edited by - Jason Fletcher on 5 Feb 2011 18:28:28 Link to comment Share on other sites More sharing options...
The Pikey Posted February 4, 2011 Author Share Posted February 4, 2011 Didn't even know I have a relief valve. Where is it? Jason Link to comment Share on other sites More sharing options...
RD Posted February 4, 2011 Share Posted February 4, 2011 Mine (2.3l duratec csr) is when hot; 2 bar idle and 6 bar at 4k revs. 1 bar~15psi 5w-50 caterham oil Rob Edited by - RD on 4 Feb 2011 21:00:17 Link to comment Share on other sites More sharing options...
7 wonders of the world Posted February 4, 2011 Share Posted February 4, 2011 Even with the OE Ford pump Duratec's can suffer from to much oil pressure at high RPM, those values are low though. Before you get too worried what gauge are you using? if it's the chocolate CC vrsion might be worth spending £30 with Think Automotive for a full scale capilary version to compare. Are you running any coolers or heat exchanges and what filter are you using ? Too young to be old ! Link to comment Share on other sites More sharing options...
The Pikey Posted February 4, 2011 Author Share Posted February 4, 2011 Bummer. First thing I'm going to do is check the sender is reading right. I'll do that now and report back later. Jason Link to comment Share on other sites More sharing options...
Johnty Lyons Posted February 4, 2011 Share Posted February 4, 2011 Pressure when HOT will very much depend on which grade of Synth your using. Old enough to know better Senile enough not to care. Link to comment Share on other sites More sharing options...
The Pikey Posted February 4, 2011 Author Share Posted February 4, 2011 I'm running a HOF 307 (just like you ) and a Laminova but that should not effect should it? thanks jason Link to comment Share on other sites More sharing options...
The Pikey Posted February 4, 2011 Author Share Posted February 4, 2011 Oil is Millers 10-40 mineral running in oil thanks jason Link to comment Share on other sites More sharing options...
7 wonders of the world Posted February 4, 2011 Share Posted February 4, 2011 Have you got the laminova piped inot the pressure or scavenge side of your DS system - assuming you are running DS? As on the pressure side they do offer a restriction which tranlates into a pressure drop. Too young to be old ! Link to comment Share on other sites More sharing options...
The Pikey Posted February 4, 2011 Author Share Posted February 4, 2011 Ok, just checked the senders acuracy and it's dead on all bar 3% so the sender is not a problem. Link to comment Share on other sites More sharing options...
Sheds Moderator Posted February 4, 2011 Share Posted February 4, 2011 Watch for the original gauge, it's as much use as a chocolate teapot. If the pressures are confirmed then I'd check with CC. My best guess is that the pressures you report aren't out of range. Link to comment Share on other sites More sharing options...
Pendennis Posted February 4, 2011 Share Posted February 4, 2011 What is the oil viscosity? I would not be too alarmed, without knowing the oil visc and considering you have a Laminova which does reduce pressure, your probably okay Just re-read, oil may thin too easy so run it in quickly and get proper 10-60 synthetic in there, see how it goes but your always be slightly low with a Laminova Want to rent an 18th century Farmhouse in Rural Somerset? Edited by - Pendennis on 4 Feb 2011 21:46:54 Link to comment Share on other sites More sharing options...
The Pikey Posted February 4, 2011 Author Share Posted February 4, 2011 Maybe the wrong thing to attempt when you know nothing about engines but I built this engine so CC won't be interested. Anyway, I haven't told the whole story. It has a Raceline dry sump and apparently the numbers I am seeing are considered ok for that system. Jason Link to comment Share on other sites More sharing options...
The Pikey Posted February 4, 2011 Author Share Posted February 4, 2011 Have you got the laminova piped inot the pressure or scavenge side of your DS system - assuming you are running DS? As on the pressure side they do offer a restriction which tranlates into a pressure drop. It's on the return to the tank. Jason Link to comment Share on other sites More sharing options...
The Pikey Posted February 4, 2011 Author Share Posted February 4, 2011 What is the oil viscosity? I would not be too alarmed, without knowing the oil visc and considering you have a Laminova which does reduce pressure, your probably okay Ian god knows, all I know is that it's 10-40, isn't that the viscocity? As Manuel of Faulty Towers said, I know nothing! Jason Link to comment Share on other sites More sharing options...
Pendennis Posted February 4, 2011 Share Posted February 4, 2011 Nothing wrong with the Raceline DS kit, what size pipework you used? Want to rent an 18th century Farmhouse in Rural Somerset? Link to comment Share on other sites More sharing options...
7 wonders of the world Posted February 4, 2011 Share Posted February 4, 2011 Raceline is a decent set up and your Laminova is in the right place too so this has no effect on the pressure, if that's what the system is desgin to run at it sounds like your on the money. Too young to be old ! Edited by - 7 wonders of the world on 4 Feb 2011 22:02:31 Link to comment Share on other sites More sharing options...
Johnty Lyons Posted February 4, 2011 Share Posted February 4, 2011 As Manuel of Faulty Towers said, I know nothing! Well that's a crock of **** for a start as you must know something as you built the Engine STOP running yourself down First thing are you using the std Caterham Gauge Cos I wouldn't trust it 1" Get a decent Gauge before you start panicking. I'm quite sure if its a Raceline DS and you where reasonably clean and careful it will be 100% OK Old enough to know better Senile enough not to care. Link to comment Share on other sites More sharing options...
Pendennis Posted February 4, 2011 Share Posted February 4, 2011 Woooo hold on. A Laminova will reduce his oil pressure, so will the type of oil used. But the one thing Jason has not mentioned is the pipe sizes and bends. You must also consider how the pipe work is installed. If he has used too small a diameter and lots of bends coupled with a Laminova, there maybe an issue. Personally, I don't think the pressures are that low considering it's carp oil and he's using an oil heater Want to rent an 18th century Farmhouse in Rural Somerset? Link to comment Share on other sites More sharing options...
7 wonders of the world Posted February 4, 2011 Share Posted February 4, 2011 If the Laminova is installed in the scavenge side it won't have any effect on oil pressure as this line goes from the sump via scavenge pump through the laminova for cooling then back to the oil tank - so it's not in the pressure circuit. Effectively exactly where you would install a conventional oil / air cooler, Too young to be old ! Link to comment Share on other sites More sharing options...
Pendennis Posted February 4, 2011 Share Posted February 4, 2011 The Raceline DS kit has no external pump. However, can you please explain how a reduction in an orifice does not reduce pressure Want to rent an 18th century Farmhouse in Rural Somerset? Link to comment Share on other sites More sharing options...
7 wonders of the world Posted February 4, 2011 Share Posted February 4, 2011 Raceline kit has 2 pumps both housed in the sump 1 behind the other both driven from the OE chain arrangement. The front one is a pressure pump with a capacity slight less than the OE version the second pump nounts directly behind it, as this is the scavenge it has a considerably higher capacity. Pump 1 takes a feed hose from the remote oil tank and pumps the oil this via the oil filter (either remote or block mounted) and on into the oil gallery where the oil pressure is taken from. The spent oil falls to the sump an is collected by pump 2 and sent via an external hose back to the oil tank, it's i this hose that the laminova should be ( an in Jason's case is) installed therefroe the restriction offered by the laminova will not affect the oil pressure. Oil temp could be a factor but considering ambient temp, load on the enigne and the fact the laminova is pretty efficent in terms of heat transfer i think we can discount this. Too young to be old ! Link to comment Share on other sites More sharing options...
The Pikey Posted February 4, 2011 Author Share Posted February 4, 2011 I used -12 goodridge 200 series pipe and fittings. Theres only just over a meter of pipe used. You can see the install here Jason Link to comment Share on other sites More sharing options...
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