shuey Posted October 1, 2007 Share Posted October 1, 2007 noticed that on long m/way runs oil pressure dopes normaly it`s around 65-75 so really good but after giving it some welly it dropes to around 35-45 would an oil cooler cure this Link to comment Share on other sites More sharing options...
lordleonusa Posted October 1, 2007 Share Posted October 1, 2007 Possibly, but a good engine oil that doesn't get significantly thinner with heat would make more sense.L Link to comment Share on other sites More sharing options...
shuey Posted October 2, 2007 Author Share Posted October 2, 2007 got 20/50 semi sogood quality oil in car Link to comment Share on other sites More sharing options...
shuey Posted October 7, 2007 Author Share Posted October 7, 2007 hi quick update after some advice that some of the "new" oilpumps are cr@p I thought I`d check the tollarences on mine took sump ofto find stranier had fallen of easy fix now showing very good psi just under 50 at tick over 75-80 at 3000 Link to comment Share on other sites More sharing options...
Deleted User Posted October 7, 2007 Share Posted October 7, 2007 You first post you mention that you get 45 on the M'way, well what's wrong with that? Link to comment Share on other sites More sharing options...
shuey Posted October 7, 2007 Author Share Posted October 7, 2007 been out for a good run today raglan castle 250 mile round trip o/p sat at 65 at 3000rpm aroud 45-50 at tick over Link to comment Share on other sites More sharing options...
Clive Posted October 7, 2007 Share Posted October 7, 2007 Thats VERY good!I'd be well chuffed. Goes to show its worth finding the cause of a problem rather than faffing around with the symptoms. Link to comment Share on other sites More sharing options...
shuey Posted October 7, 2007 Author Share Posted October 7, 2007 I am well chuffed and still got enough for a couple of pints much better than a shinney new oil cooler that nobody ever see`s Link to comment Share on other sites More sharing options...
Deleted User Posted October 7, 2007 Share Posted October 7, 2007 jimio wrote:You first post you mention that you get 45 on the M'way, well what's wrong with that? you should have more on the MW! pref about 60-70 or sobasicly 25idle and 60 at 2K, 45 on idle seems rather high? Link to comment Share on other sites More sharing options...
chrisspe Posted October 11, 2007 Share Posted October 11, 2007 i thought pressure should be lower on the motorway cos the oil is hot and thin, i always get a lot of pressure when cold, even at idle??????? Link to comment Share on other sites More sharing options...
Deleted User Posted October 17, 2007 Share Posted October 17, 2007 To save opening another thread! Do I need to add a oil cooler for my trip to Austria next year, Lots of driving and high altitudes?Your comments please chaps.Rob Link to comment Share on other sites More sharing options...
Clive Posted October 17, 2007 Share Posted October 17, 2007 Not really. I would use a good oil, etc etc. Austria isn't that far! Link to comment Share on other sites More sharing options...
trackerjack Posted October 17, 2007 Share Posted October 17, 2007 Sprints are prone to getting too warm so I have one fitted but did many years of trackdays with no more problems than expected.Our TR4 went over the alps and down to Venice without a worry. Oh and I almost never drive slowly ;) Link to comment Share on other sites More sharing options...
Deleted User Posted October 18, 2007 Share Posted October 18, 2007 chrisspe wrote:i thought pressure should be lower on the motorway cos the oil is hot and thin, i always get a lot of pressure when cold, even at idle???????pressure when cold will always be high as the oil is thick, as it warms up and gets hotter it gets thinner, and as the revs go up so should the oil pressure Link to comment Share on other sites More sharing options...
Clive Posted October 18, 2007 Share Posted October 18, 2007 Jony5 wrote:pressure when cold will always be high as the oil is thick, as it warms up and gets hotter it gets thinner, and as the revs go up so should the oil pressureup until the pressure relief valve opens.And the valve isn't huge, so it will not allow cold oil to escape nearly as fast as hot, thinner oil. So effectively it allows cold oil pressure to get much higher than hot. I think :) Link to comment Share on other sites More sharing options...
Deleted User Posted October 18, 2007 Share Posted October 18, 2007 yup, on my 6 which runs spot on, its 75 on cold and that idle and running so obviously where my valve opens, normal running and would be about 30 on idle or so, a good thrashing round the track or motorway (sustained high revs basicly) and it would be 25 idle and about 60 at 2K which if you have that than your sorted, if you have more than even better. Link to comment Share on other sites More sharing options...
Deleted User Posted October 20, 2007 Share Posted October 20, 2007 Its happy birthday! 400 miles in the Spit!!It is currently running on very thin running in oil.The oil pressure is steady at 60 but does go up on revving the engine.Will this pressure increase on the new thicker (normal) oil after 500 miles?Rob Link to comment Share on other sites More sharing options...
trackerjack Posted October 21, 2007 Share Posted October 21, 2007 I am with Dave on this, I read years ago that the Stag (read all OHC Triumphs) oil pump cavitates when an uprated spring is fitted.I believe this is true and have not had one for years and run stock pump (increase oil pressure = overloaded jackshaft = failure)My Sprint shows 50 tickover and 60 revving and hot or cold stays the same. Link to comment Share on other sites More sharing options...
lordleonusa Posted October 21, 2007 Share Posted October 21, 2007 Just for information.Here is a photo of the two PRVs (Pressure Relief Valve) Springs from a Triumph 6 cylinder engine (Vitesse HC): the short one is a new original length, and the long one is the toilet tune so-called 'uprated' spring.It gave a ridiculously high pressure of about 100psi, so we did not use it.I still don't understand why they continue to sell this crap.Léon Link to comment Share on other sites More sharing options...
GT6Steve Posted October 21, 2007 Share Posted October 21, 2007 For the racer I built an adjustable PRV so I could readily back it off on cold mornings in the paddock. Very easy to do if interested... Link to comment Share on other sites More sharing options...
Deleted User Posted October 21, 2007 Share Posted October 21, 2007 Just been out and on looking closer at the oil pressure it is 40-50 at tick over and 60 on revving at 3.5k.(not had it over 3.5k due to running in.I was on the way to Southport today after going through Ormskirk the car started to run rough (3 cylinders) I thought at first either fuel starvation or Plugs. I ran it to Wigan where I stopped at a Motor world and checked under the bonnet.Cleaned the plugs and increased the fuel pressure and it ran a lot better (but not right) I limped home and on the A580 outside Walkden, there was a horrible tappet noise.I stopped and took the rocker cover off to find one of the rocker arms had broken.Pic Attached.I luckily had a spare rocker shaft in the boot and I changed it and it ran with no problems.Rob Link to comment Share on other sites More sharing options...
mikeyb Posted October 21, 2007 Share Posted October 21, 2007 Ouch nasty! Is that another example of a poor quality aftermarket tuning part? Link to comment Share on other sites More sharing options...
Deleted User Posted October 21, 2007 Share Posted October 21, 2007 And where did you get them from and why? Link to comment Share on other sites More sharing options...
Phil Wright Posted October 21, 2007 Share Posted October 21, 2007 I was thinking of trying out a set of these, but your pic has given me second thoughts. Have you had them long? Link to comment Share on other sites More sharing options...
lordleonusa Posted October 22, 2007 Share Posted October 22, 2007 Depends where you get them from.Tony Lindsey-Dean/Kingston Sportscars had a bad batch which were prone to cracking like that.In his defence, he did go to the trouble of publishing an article expaining what happened, with photos of the bad ones, compared with the replacements.I didn't get mine from him. Mine came from Ted Schumacher at TSI in Ohio, they are gold coloured, and I believe that they are made by Harland-Sharpe, and so far I have done several thousand miles over 4-5 years without any problems from them.I will be re-examining them in the Spring when I give my car a full service prior to the 2008 season.Leon Link to comment Share on other sites More sharing options...
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