nastyrash 2003 Posted November 1, 2014 Share Posted November 1, 2014 love you to mate. and hows u and family. i will explaine the oil system and how it works and flow paths on starlet club mate. dead simple. Quote Link to post Share on other sites
5e colin Posted November 1, 2014 Share Posted November 1, 2014 (edited) 100% true there is no oil pressure in the oil channels of the crank its only loubed by splash from the rotating crank to 2 posts above seems like it if oil pump was new and in working order then it seems the rebuild spec was neglected by a newby/rookie rebuilding the engine like adam said to smal of oil space/clearance will result in a fuck up of bearing example like a size 3 ( toyo ) bearing in size 2 slot could/wil cause it ay now i see why the lads said it !!!! I SAID OIL CHANNELS OF CRANK !!!! i should of said loubes of crank to rod i stick up my hand i miss said it there SORRY lads i was wrong there ( family is great mate :) ) Edited November 1, 2014 by 5e colin Quote Link to post Share on other sites
nastyrash 2003 Posted November 1, 2014 Share Posted November 1, 2014 the big end and even thrust clearence of the conrods and main caps (crank) is lubed by oil breakout from the shells the only part of the crank that might be subject to splash/misting will be the little end but thr is a oiler hole on all e serise con rods. so this is now not the case. misting is not desirable in pro engines. just in its nature it increases crank case pressure (not good). Quote Link to post Share on other sites
5e colin Posted November 1, 2014 Share Posted November 1, 2014 (edited) yup the mains (crank to block ) i knew there all direct fed under pressure but conrods arnt fed by pressure just by hitting the oil on rotating and splash thats how oil goos tru the oil hole tru rod and crank that fills up each rotation and when it gose up or down the oil runs out whats stored in the small crank hole and runs to the bearings loube prove me wrong Edited November 1, 2014 by 5e colin Quote Link to post Share on other sites
lukEp Posted November 1, 2014 Share Posted November 1, 2014 (edited) Theres a hole in the rod colin. Like a jet hole it fires at the little ends its not direct fed. If you look at a standard rod little end facing you you will see a small pilot hole in the big end as if your looking straight into the pilot, that hole feeds the little end and cools the piston crown from the underside. Its not splash fed. Edited November 1, 2014 by lukEp Quote Link to post Share on other sites
lukEp Posted November 1, 2014 Share Posted November 1, 2014 The rod journals also receive oil pressure colin. Quote Link to post Share on other sites
5e colin Posted November 1, 2014 Share Posted November 1, 2014 ay ya yay luke really i have thought for years that conrods where not pressure fed bummer anyways thanks for the heads up i learned something extra today to thats why the club is here we al learn something even me at my age ha ha cheers 5e colin Quote Link to post Share on other sites
AdamB Posted November 1, 2014 Share Posted November 1, 2014 My mistake was thinking the same as Colin with the big ends rather than mains! Not all conrods have that pilot hole in them to splash up under the piston/pin. In a few race engines from what I was told by a chief designer at Cosworth they use the pressure under the piston to feed the bearings, this is going back like 25 years so I thought by now we would have moved onto this method as it reduces losses in the engine and makes use of that air escaping past the pistons rings! Was clearly wrong. Quote Link to post Share on other sites
lukEp Posted November 1, 2014 Share Posted November 1, 2014 All standard 4e/5e rods have the pilot hole. Forged rods have notches in the sides to do the same job. By spraying oil on the under crown of the piston and feeding the little ends. The big ends are fed from the mains via drillings. Quote Link to post Share on other sites
nastyrash 2003 Posted November 1, 2014 Share Posted November 1, 2014 colin get face book and com on our page unit 6 motor sport. all our engine get stripped and all info put up thr for all to see mainly the toyota engines and honda. we have built a d15y8 engine at the min that should be amazing. its got the 3rd compression ring (good for boost) and a very good crank to rod ratio. a t3/t4 turbo is going on. should make the b18 look tame. xx Quote Link to post Share on other sites
5e colin Posted November 1, 2014 Share Posted November 1, 2014 will surely be coming on there chris Quote Link to post Share on other sites
nastyrash 2003 Posted November 1, 2014 Share Posted November 1, 2014 also whille this subject has comup. the forged rods with the grooves provide much better oil breakout from the crankpins (replenishing) and lubricate the thrust surfaces much better reducing frictional losses and reduce shell to pin radius ride. xx Quote Link to post Share on other sites
5e colin Posted November 1, 2014 Share Posted November 1, 2014 man i been racing tru my head and checking my block crank that im building up our cranks are solid by the looks of it so no oil is going tru the centre core of the crank ( being pushed tru from left side to right side or visa versa ) so the only way i picture this in my head is by going tru the oil pool in sump and splash ?? and lubing up the bearings why i say that is we do not have jets pointed at them like in other engines i cant imagine the oil squeezing out from the main ( crank ) journals reaching the loubes from conrods becouse the counter loubes ????? this has me really baffled guys can you use paint on a pic and show where its coming from ?? Quote Link to post Share on other sites
nastyrash 2003 Posted November 1, 2014 Share Posted November 1, 2014 i will put it on starlet club colin mate. chris. Quote Link to post Share on other sites
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