14 replies to this topic

[docsee]

Hi all and a happy new year

Bin a while.

Can anyone advise me when tappets are noisy wether or not they are too tight or too loose?
Or could it be either or?

Thanks

[Bungle]

loose :wink:

[The Matt]

Hi all and a happy new year

Bin a while.

Can anyone advise me when tappets are noisy wether or not they are too tight or too loose?
Or could it be either or?

Thanks

depends on the nooise they are making! lol

If you are getting a rattley tappet sound it could be the tappets that need adjusting, so it's definitely time to get the feeler gauges out and check em over.

Also, check there is no play in the rocker gear while your in there. :wink:

[binge]

My tappets are Noisy too. But they have recently been replaced. so they arent in need of replacing.


can I have a idiots guide to "Tightening Tappets" Pweeese! :tongue:

[docsee]

thanks all,
thawt they were loose, hav alredy checked em twice, am sure its just one o them bein a swine!

Will get feelin again 2moro.

[Lund]

If you are getting a rattley tappet sound it could be the tappets

Lol I had to edit that post

Hmm somehow it reminds me of my dads 1972 Land Rover? Hmm i wonder why, also i remembered that the type of exhaust can be a problem concerned with the tappets, believe it or not! :saywhat:

[AlexM]

mine are as well, but its an even sound, its more noticable when the engine is cold, i have been told that "a noisy tappet is a happy tappet" but i suspect this is bull :erm:

[Lund]

"a noisy tappet is a happy tappet" but i suspect this is bull :erm:

+ Noisy exhaust and youve solved the problem lol

[AlexM]

"a noisy tappet is a happy tappet" but i suspect this is bull  :erm:

+ Noisy exhaust and youve solved the problem lol

ive got one of them already!

seriously though......

[1984mini25]

can I have a idiots guide to "Tightening Tappets" Pweeese!

idiots guide to "Tightening Tappets" :tongue:

It will facilitate turning over the engine if the spark plugs are removed at this point. Suitably label the plug leads to ensure they will be reconnected correctly.
The valve adjustments should be made with the engine cold.

The importance of correct rocker arm/valve stem clearances cannot be overstressed as they vitally affect the performance of the engine. If the clearances are set too wide, the efficiency of the engine is reduced as the valves open late and close earlier than was intended. If, on the other hand the clearances are set too close there is a danger that the stems will expand upon heating and not allow the valves to close properly which will cause burning of the valve head and seat, and possible warping.

For this operation the engine can be turned over by engaging reverse gear and pushing the car backwards, or by jacking one of the front wheels clear of the ground and rotating the wheel. In this latter case, top gear should be engaged.

Crankshaft rotation is clockwise, viewed from the radiator end of the engine.
Rotate the crankshaft until each valve in turn listed in the left-hand column below is fully open (spring compressed), then check the clearance of the valve listed opposite in the right-hand column. Valve numbering is from the radiator end of the engine.

Valve No. 1 open check valve No. 8
Valve No. 3 open check valve No. 6
Valve No. 5 open check valve No. 4
Valve No. 2 open check valve No. 7
Valve No. 8 open check valve No. 1
Valve No. 6 open check valve No. 3
Valve No. 4 open check valve No. 5
Valve No. 7 open check valve No. 2

The valve rocker clearance should be 0.012 in (0.305 mm) for both the inlet and exhaust valves (cold). The clearance is correct when the appropriate thickness of feeler gauge is a neat sliding fit between the end of the valve stem and the pad on the rocker arm.
If adjustment is necessary, slacken the adjusting screw locknut with a ring spanner, and turn the adjusting screw on the push rod end of the rocker arm until the correct
Gap is obtained

Turn the screw clockwise to reduce the clearance, or anti-clockwise to increase it. Retighten the locknut while holding the adjusting screw with the screwdriver to prevent it turning, and then recheck the gap.
When adjustment is complete, refit the rocker cover. Use a new cork gasket if necessary.

[docsee]

proppa lol

by the way...

the right feeler blade is 0.30 right?

ta

[Saint Matt]

Make sure both valves are closed by checking the piston is at tdc via the plug hole, then set them at 10 thousands of an inch to be quieter, no lower than that though (they are 12 thou as standard). I was told that by a guy who used to work for a mini specialist.

[adam ferguson]

the right clearance is .012 inches
says on some manifolds
fergie

[Jackman]

Also go in from the side on roller rockers, if you go in from the front it will pull it in on every distance (from what ive heard) also warn rockers will always give loud tappet noise.

[eddyg]

just checking cause i ain't heard of them before. is tappets noise when the rocker clearance is too large and the rocker knocks onto the valve making a tapping noise??