Tappets

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Tue, 30/05/2006 - 19:32
Greeney
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Location: Limousin France

I am about to do the tappets on my 617 engine now I have a new rocker gasket, anyone give me some tips. Is it straight forward and can i do it from a cold engine if not I will have to wait a bit before i can get the engine going again, all wiring, battery and rad are out at the mo

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Mon, 26/06/2006 - 23:00
#1
kensbenz
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Location: devon
Re: Tappets

Setting the tappets on a 617 engine is relitively easy if you have the tappet spanners (14mm). They are best set from cold with 10 mm on inlet and 30mm on exhaust. With the cover removed, set the clearances on the ones where the cam lobes are uppermost. ( 1 exhaust and 1 inlet] The clearances are usually too tight and the adjusting nuts on the valves need to be turned down to achieve the correct setting. Then turn the engine (quick flick of the key or socket on the crank bolt) till the next pair of cam lobes are uppermost and set the corresponding tappets. Repeat this procedure till all tappets have been set. Be sure to check which ones are inlet and which ones are exhaust by looking at the manifolds.

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Tue, 27/06/2006 - 05:50
#2
Greeney
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Location: Limousin France
Re: Tappets

by 10mm and 30mm I presume you mean thou :shock: :lol:
Is a normal 14 mm spanner ok I do i have to buy special as i know its cranked or will something else surfice.
By 1 ex and 1 in is that starting from the rad? last time i did tappets was when i was into Mk1 escorts and they had to be done in a sequence :oops:
Thanks for the help anyway

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Mon, 31/07/2006 - 16:02
#3
mgrays
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Re: Tappets

Those are microns .. ie thousand's of mm.

Two 14mm open ended spanners can adjust them

Getting cover off is a bit of an art as you have to angle it over to on top of injectors.

Stick in 5th gear and push car backwards slowly (if not auto.. I know you should go forwards but it works!)

Look at the manifolds to work out which one is inlet or exhaust ..rust = exhaust :wink:

Lobes should actually be slightly off vertical if you look at the point of the finger resting on the lobe but it is does not matter as the cams are so mild that the "off" period is rather large.

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