RB26 オイルギャラリーオリフィス
Contents
1. G TOMEI N1 1 5 2 0 TOMEI lt Please carefully read this manual prior to installation Please also refer to the NISSAN Service Manual with this Manual After the installation has been completed please keep this manual for future reference If the install was done in a shop please make sure to give this manual to the owner Any lubrication of the cylinder head components are supplied from the bottom section of the engine The flow rate is controlled by the aperture of the oil gallery orifice However since the orifice inner diameter hole is only designed to suit the stock engines purpose2. it is inadequate for the use of motorsport requirements This is what happens when excessive oil is supplied to the head 1 Excessive blow by gases 2 Excessive oil supply to the head 3 Oil leaks from the Valve Guides 4 Insufficient oil supply to the crank journals 5 Insufficient oil supply in the sump causes the pickup to suck in air alone whilst G forces are applied to the vehicle Based on our experience in the development of both drag racing amp N1 racing cars we found that the stock 2 0mm 1 5mm inner diameter orifice was the optimal size Whilst still being able to supply sufficient lubrication to the valve lifters around the camshafts The TOMEI oil gallery orifice is designed to restrict the unwanted excess oil that is supplied to the cylinder head This in turn resolves various problems as listed above Blow by gases are mostly due to poor piston profile design The TOMEI pistons are highly recommended due to the specific design of our piston profile m WZIL O20 ener eee Be a HI 1 5 2 0 1 5 1 E 7 ji a L p am i rE d et ee E Hi i 1 4 a T i n m Fyi e j Mh J a J M fi La lj 1 jy A a Te Bh r ps at hs 1 i m i bd i
3. lt a TOME 2015 05 ATUM061Y0091 The Engine Specrahst G m Q C INSTALLATION MANUAL RB26 OIL GALLERY ORIFICE TB2040 NS05A RB26DETT PART NUMBER APPLICATION Dp English 3pD 0 1 2 3 4 5
4. Orifice should be positioned 2 Use the pin punch to install the 1 5mm Orifice flush with the deck surface TOME POWERED USA wc 13 Orchard Suite 107 Lake Forest CA 92630 USA TEL 1 949 855 6577 FAX 1 949 855 6525 http www tomeiusa com OPEN Monday Friday National holidays and public holidays excluded 10 00 19 00 PST 15 05 ATUM061Y0091 2015 May OIL GALLERY ORIFICE INSTALLATION MANUAL ATUM061Y0091
5. mr g F aes f Pe sy Misr ary a 5 1 4 OF 1 a i k T UF SN I L 1 ail i he yh iss 1 Sy ya 4 AOE SN a ea iE y t i a O L Fa F Fi i Eee es TP i Yama Bd poo psa cd Ed rp i 1 46 RE D 5 6 2 1 5 1 5 1 5 E Stock 2 0mm Renae Excess Oil Head ay be re Block Oil Sump Oil shortage E When combined with stock 2 0mm amp JA Tomei 1 5m Proper Oil Level Stock 0 2 0mm xe er Oil Level cr oo PE INSTALLATION 1 With the stock orifice ig Prop 1 State of the stock orifice 2 Use a 5mm pin punch tool to install the stock orifice 6mm deep 2 Install the 1 5mm orifice Install the Tomei 1 5mm orifice on top of the stock orifice v Have the chamfered side facing down The 1 5mm
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