

| Subject: | Re: Valve adjustment advice |
| From: | thewestyman |
| Date: | Sun, 13 Dec 2015 23:42:35 -0800 |
What happens if someone adjusted them three full turns? Just asking. Can they be over adjusted? Zoltan -----Original Message----- From: Dennis Haynes Sent: Sunday, December 13, 2015 9:28 PM To: vanagon@GERRY.VANAGON.COM Subject: Re: Valve adjustment advice Why are you touching the adjusters on a running engine? Before doing an adjustment you want to set the engine at TDC for the compression stroke of the cylinder you want to adjust before loosening them. That way you will feel when the tension is off the pushrod without getting anything so loose the push rod can fall out. If you do get them too loose and they fall out of the cup in the lifter you have to be very careful to get the rod seated in the lifter cup and rocker socket. Then you want to take up the slack and then turn another 2 turns. You will see the lifter push the valve open slightly. Turn engine to next cylinder and repeat. After all are adjusted wait an hour or so they can bleed down a bit. The engine may be hard starting as some of the valves may not close. Once it starts and warms up the lifters should adjust and all should be good. If this is a high mileage motor you may want to inspect or just replace the adjusting screws. They wear in pattern and often wear the valve stem to match. When you turn them this wear path will be miss aligned and this can tear up the screw or worse the valve stem. So will suggest setting the valves with some lash like in the solid lifter days. Resist this temptation. The will have a bad rocker geometry and make for a noisy engine. If something is wrong it will need to be fixed. A valve adjustment is only effective after someone screws it up and it gets noticed and fixed before major damage is done. Dennis -----Original Message----- From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of Robert Clemmer Sent: Sunday, December 13, 2015 6:29 PM To: vanagon@GERRY.VANAGON.COM Subject: Valve adjustment advice Bentley says to back out the adjusting screw until it is flush with the rocker arm, then turn engine to TDC on #1 and start from there. If I back out the screws that far, don't I run the risk of the pushrods dropping out of the lifters? Bob C
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