Function: Hydraulic adjustment replaces the adjustment screw and lock nut. The hydraulic tappet is always in contact with the camshaft, runs without clearance, maintains a reasonable valve volume, and reduces the impact and noise between parts
Fits:LS1, LS2, LS3, LS6, LS7 Engines,V8 Engine Sizes 4.8L, 5.0L,5.3L, 5.7L, 6.0L,V6 Engine Sizes 3.3L,3.8,4.3L
Applicable to: April 2007 Express 3500, 1999-2006 2013 Silver 1500, 2007 Silver 1500 Classic, 2000 Silverado 2500, 2003-2005 Silver 2500 HD, 2000-2006 2008 Tahoe, 2002-2006 Avalanche 1500 ,1988-1990 1994 1998-2005LeSabre, 1998-2004 Park Avenue, 1993 Riviera, 2000-2004 2006 GMC Yukon XL 1500, 2003 2007 GMC Savannah 1500, 2003 2004 2007 GMC Savannah 2500, 2004 2007 GMC Savannah 3500, 1999- 2006 GMC Sierra 1500, 2007 GMC Sierra 1500 Classic
OE:17122490, 17089852, 17108057, 17120070, 17121905,HL124, 10530-16, 91113, HT-2148, 12595365, 5234890, 5235498, 5233745, 5234670,JB2079, HL123,JB2270,HL112 ,HL118,HL119, L2148
Choose the thickness of the tappet: measure the measured value of the gap, the reasonable gap of the valve is 0.20MM and the exhaust pipe gap is 0.30MM, and then the thickness of the exhaust tappet can be calculated
Product description
Installation
1 Please check whether the engine oil is clean enough;
2 Before installing the hydraulic tappet, it should be diffused into the oil
3 Use your fingers to test the support seat in the center of the hydraulic tappet, and then select a
strong support without settlement or settlement.
4 When installing, please try to prevent oil from overflowing from the inner cavity of the
hydraulic tappet
5 If there is still air entering the hydraulic tappet and causing noise, please follow the «Exhaust
Step» to eliminate the noise
6 During the installation process, do not try to rotate the camshaft, if it is indeed unavoidable, it
should be reduced to the smallest possible extent;
7 When the camshaft needs to be rotated, the camshaft should be rotated as continuously as
possible, and a single stop action should not be performed. Stop in a different position
each time
8 Before starting the engine, refueling steps should be performed as much as possible to reduce
the chance of air entering the hydraulic tappet;
