Flaminsam Posted March 11, 2015 Share Posted March 11, 2015 Hey everyone,I've noticed a massively common trend going on throuought the starlet community. The fatal bottom end rattle. I've seen numerous posts about big end shells failing, picking up and general buggery. My question is surely there should be a way to combat this? I know of a few people "upping the oil pressure" by placing a thicker or another washer in the oil pressure regulating valve. Does this actually work or is it just moving the problem elsewhere? Has any one ever thought of modifying the pulley on the pump? Even one less tooth will provide more flow at tick over and at high rpm? I know many people running 300+ bhp on standard toyota pumps but when oil coolers etc are added into the equation surely the standard pump is punching well above its weight? Thoughts anyone? Quote Link to post Share on other sites
Flaminsam Posted March 11, 2015 Author Share Posted March 11, 2015 Well due to most people that I've asked coming to a blank I've found this.........http://www.importperformanceparts.net/imports/toga_oilpumpstoyota.htmlLists one for a 5efe but not a 4efte? Are these pumps the same? Quote Link to post Share on other sites
Ollieh17 Posted March 11, 2015 Share Posted March 11, 2015 Pretty sure they are from when i was looking for a standard pump Quote Link to post Share on other sites
maddox710 Posted March 11, 2015 Share Posted March 11, 2015 Probably just a load of garbage. Quote Link to post Share on other sites
AdamB Posted March 11, 2015 Share Posted March 11, 2015 (edited) Those pumps are shit, all they are is OEM Toyota pumps with the Toyota casting name smoothed out. The internals are exactly the same! There was a thread about it on a Tercel forum I believe. Putting in a shim under the pressure valve does work and was commonly used back in the day when 5E's were first being built. In all honesty because there is no " off the shelf " uprated pump that will produce a greater volume flow, getting one designed and made will be costly and you will be running into dry sump kit territory, not to mention the added bonuses you get from running such kits. What could be worth looking into, I used to do this with Vauxhall engines years back, is extend the oil pick up down further into the bottom of the sump. I'll have to see if I've got any pictures floating around on a old hard drive. Edited March 11, 2015 by AdamB Quote Link to post Share on other sites
5e colin Posted March 11, 2015 Share Posted March 11, 2015 the washer trick works well i have it on al my engines !!!! never had a failer sinds doing it Quote Link to post Share on other sites
GP82 Posted March 11, 2015 Share Posted March 11, 2015 Nothing wrong with the stock Toyota pump. The pump flows oil. The clearences/ tolerance between the bearings and journals primarily within the mainline creates the pressure. Quote Link to post Share on other sites
glanzagee Posted September 14, 2016 Share Posted September 14, 2016 Hey everyone,I've noticed a massively common trend going on throuought the starlet community. The fatal bottom end rattle. I've seen numerous posts about big end shells failing, picking up and general buggery. My question is surely there should be a way to combat this? I know of a few people "upping the oil pressure" by placing a thicker or another washer in the oil pressure regulating valve. Does this actually work or is it just moving the problem elsewhere? Has any one ever thought of modifying the pulley on the pump? Even one less tooth will provide more flow at tick over and at high rpm? I know many people running 300+ bhp on standard toyota pumps but when oil coolers etc are added into the equation surely the standard pump is punching well above its weight? Thoughts anyone? Quote Link to post Share on other sites
Chief Quimby Posted September 15, 2016 Share Posted September 15, 2016 I have had 3 5efte engines, with 250-412 hp. And know a few who run them too. Never had a fault on bearing.You dont need upgrade pump, you need to run the right oil, and make sure clearence is right in bearings. Quote Link to post Share on other sites
glanzagee Posted September 15, 2016 Share Posted September 15, 2016 I have had 3 5efte engines, with 250-412 hp. And know a few who run them too. Never had a fault on bearing.You dont need upgrade pump, you need to run the right oil, and make sure clearence is right in bearings.Your on point but there's other things that can be done too Above is based on5efhe50wt oilRev limited to 8300rpmModifications too oil gallery's !!!None to pump or pressure relief valve Hot pressure are no lower than 4 bar even at idle Cold pressure at idle 7bar Quote Link to post Share on other sites
Chief Quimby Posted September 17, 2016 Share Posted September 17, 2016 I ran 10/40.No modifications roo oil galleryRan stock oilpressure. But i had the biggest clearence allowed after specs. Quote Link to post Share on other sites
Phil Posted November 10, 2016 Share Posted November 10, 2016 Very good info glanza gee What's your intake temps?Phil Quote Link to post Share on other sites
glanzagee Posted November 10, 2016 Share Posted November 10, 2016 23c min 30c max for one of thoses files i also live in the mediterranean we see temps of 40c plus summers and winters of 20c Quote Link to post Share on other sites
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