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1979 Super Beetle Rocker Arm Studs Go In To Far Into the Head A& Then You Cant Do The Valve Adjutment???????Thank You

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You tighten studs only until the threads just disappear leaving the non threaded section bare. Put some Blue Loctite on the threads to lock them in place.

Posted on Jan 04, 2017

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Posted on Jan 02, 2017

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Ok so ik I'm posting allot haha but does anyone know where or how to adjust lifters just found out mine r just now needed adjustment in near mount Vernon WA or a price at least haha


In engines with rocker arm valve systems, the procedure I'm familiar with is to remove a rocker arm cover, and (one at a time!) while the engine is running, slowly back off the rocker arm retainer nut or bolt just until you hear the lifter tapping, then tighten it a quarter turn. If you can identify a lifter that is already tapping, tighten its rocker arm slowly until it stops tapping, then adjust it. Do not over-tighten! This can damage the engine.

Listen carefully to how the engine sounds; if it starts to stumble when you tighten a loose rocker arm, you've gone too far. If you cannot get the engine to run well without tapping, you may have too much wear in the valve train and may be due for a head overhaul, or you don't have adequate oil pressure in the lifters in question.
Repeat until all rocker arms are done. Replace the rocker arm cover using a new gasket, then (in a V-engine), repeat the procedure on the other side of the engine.

Wearing safety goggles, or better yet, a transparent face shield, is strongly recommended. Sometimes oil will squirt out a considerable distance from the lifter side of the rocker arm during adjustment, and the direction is not readily predictable.

Apr 03, 2015 | Cars & Trucks

1 Answer

Ticking noise while in drive getting worse, been told that noise coming from bell housing?


Valve Adjustment

Print
The 4.2L and 5.3L engines do not require a periodic valve lash adjustment.
The 4.3L engines are equipped with screw-in rocker arm studs with positive stop shoulders. Because the shoulders that allow the rocker arms to be tightened into proper position, no adjustments are necessary or possible. If a valvetrain problem is suspected, check that the rocker arm nuts are tightened to 18 ft. lbs. (24 Nm). When valve lash falls out of specification (valve tap is heard), replace the rocker arm, pushrod and hydraulic lifter on the offending cylinder.

Oct 23, 2014 | 2003 Chevrolet TrailBlazer

1 Answer

Valve adjustment on 1979 datsun 310gx


.010"inlet hot and .012" exhaust hot.. Check for worn rocker ends and rocker arm bushes and shafts

Jul 31, 2014 | 2006 Datsun 310

1 Answer

Ticking sounds engine


Without hearing the noise I can only guess. Probably a hydraulic lifter. Many 50s, 60s and 70s engines had this problem. Varnish builds up in the lifter body. If it's just a SLIGHT tick, I wouldn't worry about it. You could try a different brand of oil and some engine cleaner.

As an aside, I personally own a 91 GMC pick-up with a 4.3. It had a clicking lifter on start up and 10 min after. I always used Castrol oil, supposedly one of the best. Switched to Penzoil, it was on sale. No more click!

If you want to try and un-stick it, try this. Be forewarned, it WILL make a mess! Try and locate which side of the engine the noise is coming from. Remove the valve cover. Inspect for bent pushrods and rocker arm stud pulling out of the head. If you find either of these problems, disassemble the whole valve train and inspect/replace worn parts. Back then, Pontiacs and SBCs were notorious for studs pulling out of the head if you ran them hard.

Start engine. Oil will spray/mist everywhere. You were warned. LOL
Watch the rocker arms as it idles. If one does not move as far as the others, and the click is more of a bang, you have a collapsed lifter. A worn cam lobe will be much more quiet than a collapsed lifter, but you will see decreased movement of the rocker arm. Replacement is the only option on both.

Take a RUBBER (not metal ) or plastic dead-blow hammer and rap the rocker arm(s) several times where the pushrod mates with it. Over the years I have used this method with approx 60% success.

May 04, 2013 | 1967 Pontiac GTO

1 Answer

How do I adjust the valves on a 1998 old bravada 4.3 vortec


You don't. They are non-adjustable hydraulic lifters. GM's spec for torque on the rocker arm nuts: Tighten the valve rocker arm ball studs to 47 N·m (35 lb ft). Once the valve rocker arm nuts are installed and properly torqued, no additional valve lash adjustment is required.

Aug 05, 2011 | Oldsmobile Bravada Cars & Trucks

1 Answer

I have a 2003 chevy malibu and ever since 52000miles the rocker arm studs keep comeing out of the head I now have a little over 100K and this the forth time one hase come out this had to be a factory flaw...


Check with the dealer's service Dept. There may be a technical service bulliten on this problem. As far as trying to have a lemon law involved, I think it's way to late.
I have see a few rocker studs pull out over the years, most of the time a locking sealant cures the problem when repaired.

Apr 14, 2011 | 2003 Chevrolet Malibu

1 Answer

Hi,i noticed some of the tappets on our 70-289z were quite loose as if they wouldnt be giving much push on the valve while others seemed to tight almost holding the valve open,how do i ensure they are all...


funny somebody asked this question last night. here is the adjusting procedure:

This procedure for the 289 and early 302 V8 engines is designed for engines in which the rocker arm mounting studs do not incorporate a positive stop shoulder on the mounting stud. These engines were originally equipped with this kind of stud. However, due to production differences, it is possible some 289 or early 302 engines may be encountered that are equipped with positive stop rocker arm mounting studs. Before following this procedure, verify that the rocker arm mounting studs do not incorporate a positive stop shoulder. On studs without a positive stop, the shank portion of the stud that is exposed just above the cylinder head is the same diameter as the threaded portion, at the top of the stud is of greater diameter than the threaded portion, this identifies it as a positive stop rocker arm stud and the procedure for the 351 engine should be followed.
  1. Crank the engine until No. 1 cylinder is at TDC of the compression stroke and the timing pointer is aligned with the mark on the crankshaft damper.
  2. Scribe a mark on the damper at this point.
  3. Scribe three more marks on the damper, dividing the damper into quarters (see illustration).
  4. With mark A aligned with the timing pointer, adjust the valves on No. 1 cylinder by backing off the adjusting nut until the pushrod has free-play in it. Then, tighten the nut until there is no free-play in the rocker arm. This can be determined by turning the pushrod while tightening the nut; when the pushrod can no longer be turned, all clearance has been removed. After the clearance has been removed, tighten the nut an additional 1 / 4 of a turn.
  5. Repeat this procedure for each valve, turning the crankshaft 1 / 4 turn to the next mark each time and following the engine firing order of 1-5-4-2-6-3-7-8.

Oct 26, 2010 | 1966 Ford Mustang

1 Answer

Need to know how to adjust valves on a ford 289 engine


I assume you have hydraulic lifters. If not, please get back to me. We used to do this with the covers off and the engine running, but that was messy. Here is procedure from autozone.com:

This procedure for the 289 and early 302 V8 engines is designed for engines in which the rocker arm mounting studs do not incorporate a positive stop shoulder on the mounting stud. These engines were originally equipped with this kind of stud. However, due to production differences, it is possible some 289 or early 302 engines may be encountered that are equipped with positive stop rocker arm mounting studs. Before following this procedure, verify that the rocker arm mounting studs do not incorporate a positive stop shoulder. On studs without a positive stop, the shank portion of the stud that is exposed just above the cylinder head is the same diameter as the threaded portion, at the top of the stud is of greater diameter than the threaded portion, this identifies it as a positive stop rocker arm stud and the procedure for the 351 engine should be followed.
  1. Crank the engine until No. 1 cylinder is at TDC of the compression stroke and the timing pointer is aligned with the mark on the crankshaft damper.
  2. Scribe a mark on the damper at this point.
  3. Scribe three more marks on the damper, dividing the damper into quarters (see illustration).
  4. With mark A aligned with the timing pointer, adjust the valves on No. 1 cylinder by backing off the adjusting nut until the pushrod has free-play in it. Then, tighten the nut until there is no free-play in the rocker arm. This can be determined by turning the pushrod while tightening the nut; when the pushrod can no longer be turned, all clearance has been removed. After the clearance has been removed, tighten the nut an additional 1 / 4 of a turn.
  5. Repeat this procedure for each valve, turning the crankshaft 1 / 4 turn to the next mark each time and following the engine firing order of 1-5-4-2-6-3-7-8.

Oct 25, 2010 | 1966 Ford Mustang

1 Answer

Rocker arm torque specs on a 97 gmc jimmy 4.3


  1. For the 4.3L engines which are equipped with screw-in type rocker arm studs with positive stop shoulders, tighten the rocker arm adjusting nuts against the stop shoulders to 20 ft. lbs. (27 Nm) on 1994-96 models and 18 ft. lbs. (25 Nm) on 1997-99 models. No further adjustment is necessary, or possible.
  2. For most 4.3L engines which are not equipped with screw-in type rocker arm studs and positive stop shoulders, properly adjust the valve lash. For details on valve lash adjustment, please refer to the procedure in Routine Maintenance . (see below)
4.3L Engine

The 4.3L engines may be equipped with either of 2 rocker arm retaining systems. If your engine utilizes screw-in type rocker arm studs with positive stop shoulders, no valve lash adjustment is necessary or possible. If however, you engine utilizes the pressed-in rocker arm studs, use the following procedure to tighten the rocker arm nuts and properly center the pushrod on the hydraulic lifter:
  1. To prepare the engine for valve adjustment, rotate the crankshaft until the mark on the damper pulley aligns with the 0? mark on the timing plate and the No. 1 cylinder is on the compression stroke. You will know when the No. 1 piston is on it's compression stroke because both the intake and exhaust valves will remain closed as the crankshaft damper mark approaches the timing scale.

Another method to tell when the piston is coming up on the compression stroke is by removing the spark plug and placing your thumb over the hole, you will feel the air being forced out of the spark plug hole. Stop turning the crankshaft when the TDC timing mark on the crankshaft pulley is directly aligned with the timing mark pointer or the zero mark on the scale.
The valve arrangement is as follows:



E-I-I-E-I-E (right bank-front-to-rear) E-I-E-I-I-E (left bank-front-to-rear)

  1. With the engine on the compression stroke, adjust the exhaust valves of cylinders No. 1, 5 & 6 and the intake valves of cylinders No. 1, 2 & 3 by performing the following procedures:
    1. Back out the adjusting nut until lash can be felt at the pushrod.
    2. While rotating the pushrod, turn the adjusting nut inward until all of the lash is removed.
    3. When the play has disappeared, turn the adjusting nut inward 1 3 / 4 additional turns.

  2. Rotate the crankshaft one complete revolution and align the mark on the damper pulley with the 0? mark on the timing plate; the engine is now positioned on the No. 4 firing position. This time the No. 4 cylinder valves remain closed as the timing mark approaches the scale. Adjust the exhaust valves of cylinders No. 2, 3 & 4 and the intake valves of cylinders No. 4, 5 & 6, by performing the following procedures:
    1. Back out the adjusting nut until lash can be felt at the pushrod.
    2. While rotating the pushrod, turn the adjusting nut inward until all of the lash is removed.
    3. When the play has disappeared, turn the adjusting nut inward 1 3 / 4 additional turn.

Sep 23, 2010 | 1997 GMC Jimmy

1 Answer

Where is fuel filter for a 1979 VW Super Beetle


It should be along the fuel line (in-line filter) leading towards the carb.

Jul 31, 2010 | 2000 Volkswagen Beetle

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