DIY tappet adjustment

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Originally Posted by Dxs

TUBE SOCKET/SPANNER FTW!
http://i7.tinypic.com/63inq1l.jpg

cost me $12 from total tools.. put the screwdriver through it and use a spanner on the other end to turn the nut

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Exellent idea:idea:

http://www.powerbuilttools.co.nz/Images/640422w.jpg

i bought this at work the other week for $75

powerbuilt part no 640422

not too bad, pretty much a rachet set with a hole in the middle
to fit bolts or a screwdriver to do tappets

:D

same specs for all b18 series...ie specs for ausdm R engine c7?

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Originally Posted by dudeling7

yes i measured at the camshaft. and tightened all the locknuts on the tappet fairly tight. i dont have a torque wrench so jsut tightened them hard. the car runs great but still makes occasional taps - alot less then before though.

specs are as follows for B18B engines.

B18B
INTAKE: 0.003" - 0.005" (0.08mm - 0.12mm)
EXHAUST: 0.006" - 0.008" (0.16mm - 0.20mm)

so i aimed in between. maybe i am unsure about the amount of drag that is sufficient on the feeler guage?

also, after the adjustment there was no noise for abut a week before it came back? Does that mean that they were not tight enough?

Yes engine was stone cold left overnight and was crancked to tdc for each cylinder.

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no, b18c7 should be same as b16a (all dohc b series vtec)

intake : 0.15-0.19mm (0.006-0.007")inch

exhaust : 0.17-0.21mm (0.007-0.008")inch

someone confirm?

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Originally Posted by Iwishiwasa Type R

same specs for all b18 series...ie specs for ausdm R engine c7?

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yes same spec for all VTEC B18C

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Originally Posted by ECU-MAN

this is what it looks like

http://b16a2.kicks-ass.net/tech/tappet-tool.jpg


ble

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Need some help here please....:confused:

I need to comfirm where to slide the feeler gauge to measure for DOHC engine. For SOHC, the attached video is clear enough....:thumbsup:
Can somebody draw on the above picture to show me??? Apparently somewhere between the cam lobe and rocker arm surface....

thanks....

http://b16a2.kicks-ass.net/tech/tappets-h22.jpg




between the yellow arrows

[QUOTE=ECU-MAN;1245216

between the yellow arrows[/QUOTE]

Thanks for that. Just did that in the weekend.
Only the Exhaust valve of the 1st Cylinder is tightened around 0.002 out of spec...

Also, is it normal to hear gas escaping noise as you turn the crankshaft?

yeah its normal

what are the effects of not adjusting the tappet over time ???

fuel efficiency?
noise yeh...

etc???

the lash get out of spec, so a side effect is noise, but what happens to the valve train is much wors. you can damage a rocker arm, valve head posibly the cam as well ( depending on engine manufacture ).

it would take a while to do damage, but it all depends on how out they are

the work shop manuals indicate that the feeler should come in from the center, not the outside (if you get what you i mean)

do you recommend doing it from the outside so it goes between the cam and rocker?