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Adjust valve tappets on flat head engine - Cars & Trucks

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  • 358 Answers

I'd say that it all depends upon whether or not you have adjustable lifters. All flatheads have solid lifters, but most of the older (pre-50's) flatheads had non-adjustable lifters. Elimination of valve lash was accomplished by welding a glob of metal on the top of the valve stem and grinding it down to the required height. In the 50's, adjustable lifters were introduced, but it seems that at the same time, manufacturers increased the weight of the valves (thicker stem walls or solid rather than hollow stems). If you have adjustable lifters, try .008 on the intakes and .016 on the exhaust.

Posted on Oct 10, 2013

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Posted on Jan 02, 2017

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SOURCE: Valve tappet adjustment

well, I can see ur message has been here for quite some time. Most probably you got the answer to ur request.
I just did the valve clearance on the engine of my SJ413 that has the 1000cc engine of an SJ410 :
When cold: 0.13mm Intake and 0.18mm Exhaust
Engine sounded well and worked fine after that.
Enjoy
Mehdi

Posted on Feb 07, 2009

  • 1 Answer

SOURCE: tappet/valve settings???

o.25mm when hot this is for inlet and outlet

Posted on Feb 11, 2009

michigan man
  • 3533 Answers

SOURCE: tappet adjustment sequence amc 360

try autozone.com to see if they have your car listed for diagrams pictures and step by step instructions if your car is not listed then try your local library they have all the car manuals and even copy them for you

Posted on Mar 20, 2009

  • 54 Answers

SOURCE: Need Valve clearance for '93 kh ford laser

0.10 - 0.15mm inlet
0.18 - 0.23mm exhaust
but you must be carefull because the top of the valve seat becomes concave from wear, a feeler guage will not give the most accurate reading, hope i have been of some hel

Posted on May 14, 2009

  • 4102 Answers

SOURCE: do toyota 2002 camry need valve adjustments?

hi, no not on these newer cars as they all have hydraulic lifters on the older cars you could measure the gap with gauges and adjust to the correct gap but on these newer cars you have hydraulic lifters and it sounds like it could be one or more of these that are giving you the noise you hear.

The problem you have is that you have to replace all of them as their is no way of measuring the gaps to find the faulty one so it can be expensive parts wise but doing the work isnt to difficult but it would be of great help if you got a workshop manual as it would give you a better idea of what your doing and the correct torque settings etc

let me know how you get on or if you need further assistance ok

Posted on Jan 09, 2010

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Hey there I need the exhaust and Intake(valve) clearance for a komatsu 300-6 please


note Perform the valve clearance check and adjustment at the engine cold state. 1.Remove all of the ignition coils. 2.Remove the cylinder head cover.
caution Turn the crankshaft always clockwise. 3.Turn the crankshaft clockwise, and align the timing mark on the exhaust camshaft sprocket against the upper face of the cylinder head as shown in Figure. Therefore, No.1 cylinder goes to the compression top dead center. 4.Using a thickness gauge, measure the valve clearance with the arrow shown in Figure. If deviated from the standard value, make note for the valve clearance.
Standard value:

    Intake valve 0.20 ± 0.03 mm (0.008 ± 0.0012 inch)
    Exhaust valve 0.30 ± 0.03 mm (0.012 ± 0.0012 inch)
5.Turn the crankshaft clockwise 360 degrees, and put the timing mark on the exhaust camshaft sprocket in position shown in Figure. Therefore, No. 4 cylinder goes to the compression top dead center. 6.Check the valve clearance with the arrow shown in Figure. In the same procedure as 4.
7.If the valve clearance is deviated from the standard value, remove the camshaft and the valve tappet. For the camshaft removal, refer to Camshaft Removal and Installation . 8.Using a micrometer, measure the thickness of the removed valve tappet. 9.Calculate the thickness of the newly installed valve tappet through the following equation.
A: thickness of newly installed valve tappet
B: thickness of removed valve tappet
C: measured valve clearance
Equation

    Intake valve: A = B + [C - 0.20 mm (0.008 inch)]
    Exhaust valve: A = B + [C - 0.30 mm (0.012 inch)] note The valve tappet ranges 3,000 - 3,690 mm (0.1181 - 0.1453 inch) and has 47 types per 0.015 mm (0.0006 inch). The thickness below a decimal point is stamped on the reverse side of the valve tappet. 10.Install the valve tappet selected through the procedure 9, and put the camshaft in position. For the camshaft installation, refer to Camshaft Removal and Installation .
    11.After installing the timing chain, measure the valve clearance using the procedure 3 to 6. Confirm the clearance is within the standard value.
    caution Completely remove all the old FIPG, which might be remaining among the components. 12.After completely removing the liquid gasket adhering on the timing chain case, cylinder block and cylinder head, degrease them with white gasoline.
    caution The cylinder head cover should be installed within 3 minutes of applying liquid gasket.
13.Apply a 4 mm bead of liquid gasket as illustrated.
Specified sealant:
    THREE BOND 1217G or equivalent
14. Install the cylinder head cover and tighten the tightening bolts using the following procedures.
(1) Temporarily tighten to the following torque in order shown in the illustration.
Tightening torque: 3.0 ± 1.0 N·m (27 ± 8 in-lb)(2) Tighten to the specified torque in order shown in the illustration.
Specified torque: 5.5 ± 0.5 N·m (49 ± 4 in-lb)15.Install the ignition coils.

Jan 23, 2017 | Cars & Trucks

1 Answer

Why adjust the tappets when engine is cold?


adjust the tappets when cold allows you to get the engine running with out causing valve or engine damage
you do the final adjustment when hot as the stem expands in length and takes up the cold adjustment
if the cold adjustment is too close because you didn't make that adjustment the the valves will not seat properly when hot and will burn the edges of the valves

Aug 03, 2016 | Cars & Trucks

1 Answer

How do I fix the tapping sound from the engine when i accelerate after it has reached running temperature


Adjust the valve tappets (yes, they 'tap') AKA Rockers or find out why the hydraulic self adjusting tappets don't work?

They transfer the downward motion of the cams on the camshaft to depress the valves. There is a thin clearance of about 8 thousandths of an inch with the engine cold. As the engine heats the clearance reduces. Over tightening causes the valve edges to burn, too much clearance causes tapping.

Manual tappets get quieter usually as the engine heats. Hydraulic tappets gets worse as the engine heats as the oil thins.

Oct 03, 2015 | Cars & Trucks

1 Answer

Kia carens problems


Tappets......... perhaps is what your friend said. The tappets are part of the engine inlet and exhaust valve set up. Most tappets are self adjusting in modern motors, (Hydraulic).
The old fashioned tappets are manually adjusted during regular car servicing. This happens at set intervals, for instance every 20,000 miles.
Inlet valves allow air and fuel into the engine and exhaust valves let the burnt fuel and air out.
Tappets are fitted between the inlet and exhaust valves, they ensure that the valves open on time and more importantly close properly. If the tappet happened to be badly adjusted and did not let the valve close properly then damage to the valve and cylinder head can happen by burning.
If you have a significant power loss I would be surprised to find that the just tappets/valves were to blame.

Jan 26, 2014 | Cars & Trucks

2 Answers

Can you set valve clearances on a 1997 clio 1.2 engine.my engine sounds as if the tappets are noisey.


The tappet clearence should be in the owners handbook but it's a bit early a tappet noise from the engine (2006) ! Check oil level and change if it's overdue a service is definately worth a look ! Good luck

Apr 16, 2010 | 2006 Renault Le Car

1 Answer

1998 ford expadition ticking noise ,sound like valve spring broke slightly rough idel loss of power. oil pressure good every thing seems fine.


have your engine valve tappets adjusted to its specified adjustment by a competent mechanic then if the noise is still there then you need to have the engine timing checked. if these doesnt solve the problem then you need to pulldown the cylinder head to inspect the camshaft condition...

Apr 07, 2010 | 1998 Ford Expedition

1 Answer

How to measure tappet clearance with dial gauge


When setting tappets, it has to be born inind that the valve stem wears an indentation into the face of the rocker. This prevents a really accurate tappet adjustment, so the customer is right again. If you do not posess a tappet setting dial gauge, a normal engineers dial gauge will do just as well. The procedure is the same as using your feeler gauge except that you set the dial gauge up on the cylinder head with the pointer resting on the head of the rocker. Press down fairly firmly on the rocker valve end and zero the gauge. Next lift up on the rocker and read off the clearance, from the gauge, Use a magnetic base to support your gauge and repeat the pocedure for each valve pair.

Mar 25, 2010 | 1988 Mitsubishi Cargo

2 Answers

Adjust tappets


Hi,
The method of adjusting the tappets is the same on most engines that don't have hydraulic tappets.
The gap between rocker arm pad and the top of the valve stem is important for several reasons - to allow for expansion of the metal, to ensure that the valve is fully closed when needed, and to ensure the smooth running/timing of the engine.


The rocker cover gasket or oil filler cap leak eventually over a period of time and the top of the engine gets in a right mess, like the one shown here.
Remove the filler (series have a 7/16" bolt in the side of the cover to retain the filler)
The heater hoses are held by one of the three acorn nuts that hold the rocker cover on. Remove the center nut, and then slacken the 10mm pinch bolt enough for the pipe support to be removed.

Remove the other two acorn nuts and alloy washers, then the rocker cover will lift away.
Each tappet should have a locknut and slotted thread - you will need a 13mm ring spanner and blade screwdriver.

Starting at the front of the engine - turn the crankshaft by way of the crank bolt until No2 valve is open. The camshaft lobe for No1 is now out of the way and the tappet for it can be adjusted. Undo the locknut a couple of turns - if the threaded part turns as well, then keep it still with a screwdriver.
Insert the right thickness blade in the gap between the rocker pad and top of the valve stem and turn the tappet thread until the blade is slightly pinched. Keep the screwdriver dead still and tighten the locknut.
You may find that the tappet gap will close too much when you tighten the locknut. If that happens, then re-set the gap, allowing for this. Work through all 8-tappets, making sure that you set the correct gap for the valve - inlet or exhaust. Once done - clean around the top of the head, the gasket faces, and the rocker cover inside and out. Sticky gaskets are very handy.
Refit the cover, use new alloy washers on the three studs, and re-attach the heater hose clamp.
For pictures you can refer to: http://forums.lr4x4.com/index.php?showtopic=8023

Thank You for contacting Fixya.com

Aug 03, 2009 | 1996 Land Rover Discovery

1 Answer

I have a 1999 mercury tracer that has 184,000 miles. I'm the third owner....just recently purchased the car for my teen and now I'm being told that it needs a valve lifter. I'm curious as to wonder how...


good for the most part, it got to 184,000 miles didn't it.
WHy do you think it needs a lifter? IS it nosiy?

This is not a big job. Shouldn't cost over $200.

SECTION 303-01A: Engine — 2.0L SPI 1999 Escort/Tracer Workshop Manual
IN-VEHICLE REPAIR Valve Tappet Removal
sxf~us~en~file=ani_caut.gif~gen~ref.gif CAUTION: If removing more than one valve tappet, mark the components removed for proper location.
  1. Remove the valve cover (6582); refer to Valve Cover .
  1. Remove the rocker arm (6564).
  1. Remove the valve tappet(s).
    1. Remove the valve tappet guide plate retainer(s).
    1. Remove the valve tappet guide plate(s)
    1. Remove the valve tappet(s).
Installation
  1. NOTE: Lubricate the valve tappet(s) with Super Premium 5W30 SAE Motor Oil XO-5W30-QSP or equivalent meeting Ford specification WSS-M2C153-G before installing.
    NOTE: Always return the valve tappet (6500) to their original bores unless they are being replaced.
    NOTE: The oil feed hole in the valve tappets must face away from the oil feed hole in the cylinder head (6049).
    NOTE: Be certain the valve tappet guide plate retainer tabs are toward the rear of the cylinder head , and the valve tappet guide plate tabs are toward the front of the cylinder head.
    To install, reverse the removal procedure.
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Apr 22, 2009 | Mercury Tracer Cars & Trucks

1 Answer

Size of valve springs fo 289 ford engine with 302 heads


its not that easy here are some of the things u need to know

* solid or hyd cam
* roller or flat tappet
* valve installed hieght
* rocker ratio
* cam lift

this is just a few things go to a head shop and they will choose the right ones

Dec 19, 2008 | 1965 Ford Mustang

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