Guide: How To Adjust Tappets

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Guide: How To Adjust Tappets

Postby cheby on Sun Feb 06, 2005 11:18 pm

I have recently been trying to adjust my tappets on my car. I had a go at doing them myself the other day but a master mechanic at Mclaren who used to own his own garage has now shown me how to do them properly.

This is my guide on how to adjust tappets on a 1.3 OHV Cfi Fiesta. I think this guide will also work on a 1.1.

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How To Adjust Tappets On a 1.3 OHV Cfi Fiesta

1. Jack the front right wheel up, using a trolley jack.
2. Open the bonnet and remove the airbox, using a
philips screwdriver.
3. Remove the rocker cover, using a 10mm socket.
4. Turn the wheel until 1/2 or 3/4 or 5/6 or 7/8 are “Rocking” and the rockers are both at the same height. This is where the left one is closing (up) and the right one is opening (down).
5. Adjust the correct tappets shown below, using a 11mm socket and a feeler gauge.
6. Put the engine back together and start the car.

What does “Rocking” mean?
“Rocking” is a term used when the rockers open and close
the valves.

Theory

If 1/2 is “Rocking” adjust 7/8
If 3/4 is “Rocking” adjust 5/6
If 5/6 is “Rocking” adjust 3/4
If 7/8 is “Rocking” adjust 1/2

Correct Gap (mm)

1 = Exhaust 0.3mm
2 = Inlet 0.2mm
3 = Exhaust 0.3mm
4 = Inlet 0.2mm
5 = Inlet 0.2mm
6 = Exhaust 0.3mm
7 = Inlet 0.2mm
8 = Exhaust 0.3mm

Please check that the units are correct and for the correct rockers.

Usual disclaimer, I am not responsible for you breaking or damaging your engine etc.

Hope this is a helpful guide to many people.

Cheby
:D
Last edited by cheby on Mon Feb 07, 2005 12:22 am, edited 2 times in total.
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Postby foomaniac on Sun Feb 06, 2005 11:36 pm

guess this needs moving to guides? :)

mines rattlin like aresol can, i'm very tempted but also a coward lol

looks like a usefull read through for anyone with more guts than me! :D

good stuff
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Postby Max M4X WW on Sun Feb 06, 2005 11:39 pm

Cool, I dont use those settings though :P

Might try mine, and standards and see which are quietest. Ive only done it once since owning the car but its pretty much silent now so i may as well leave it.

:)
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Postby mk3dean on Fri Mar 10, 2006 6:10 pm

how easy is this could a noivce do it

will it b the same theory 4 my 1.3 hcs engine as mine r gettin louder now :S
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Postby cheby on Fri Mar 10, 2006 8:52 pm

Yes a novice can do this, it is easy peezy lemon squeezy ... DO IT!!!

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Postby xiphon on Fri Mar 10, 2006 10:17 pm

mk3dean wrote:how easy is this could a noivce do it

will it b the same theory 4 my 1.3 hcs engine as mine r gettin louder now :S


Yeah, did mine the other day on a HCS :-) She puuuurs now...
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Postby Gazeddy on Sat Mar 11, 2006 11:47 am

that would explain why mine are so noisy the ford data booklet i got says 0.5 mm on exhaust
1.6 si coming soon
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Postby AGAR on Sat Apr 15, 2006 11:48 am

Has anyone used the above settings for a 1.1HCS?
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Postby Max M4X WW on Sat Apr 15, 2006 2:12 pm

Use..

Inlet.. 0.10mm
Exhaust.. 0.15mm
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Postby Badgerboy on Sat Apr 15, 2006 2:33 pm

Max M4X WW wrote:Use..

Inlet.. 0.10mm
Exhaust.. 0.15mm


0.15 is half the specified Ford measurement. That might quiten it up a bit, but that will have a knock on performance.
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Postby Max M4X WW on Sat Apr 15, 2006 2:41 pm

Seems better to me, So much quieter anyway dont care that much.
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Postby AGAR on Sun Apr 16, 2006 10:42 am

Ok tried this again thismoring - adjusted the tappets using both MAx's settings and the Ford stated setting - car turns over, seems to "pop" but doesn't fire.

Really fecking pissed off :x Any ideas whats up? I followed the haynes guide and cranked the engine 180 degrees after each adjustment.

To make things worse i snapped one of the rocker cover bolts :x
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Postby Max M4X WW on Sun Apr 16, 2006 12:32 pm

:oooh:

I dont turn anything 180 i just do it when the valves do thier bit.
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Postby AGAR on Sun Apr 16, 2006 5:11 pm

Max M4X WW wrote::oooh:

I dont turn anything 180 i just do it when the valves do thier bit.


Yeah i didn't understand why the haynes manual said i had to do that.

That and before even taking off the rocker cover it said to position the crank to TDC :-? I'll give it a 4th try tommorrow :x
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Postby Max M4X WW on Sun Apr 16, 2006 6:51 pm

Ive no idea where the markings are for TDC
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Postby AGAR on Mon Apr 17, 2006 1:47 pm

Max M4X WW wrote:Ive no idea where the markings are for TDC


Theres a "V" cut into on the crank pulley - and a marker/pointer on the block.
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Postby cheby on Sat Apr 22, 2006 3:57 pm

Hey,

Just read the post and a friend of mine couldn't get his fiesta to turn over properly and it turnt out to be the HT leads were on the wrong plugs, so they were firing in the wrong order. Maybe this could be the problem with yours. It did the same popping noise as described too. Hope this helps ...

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Postby AGAR on Sat Apr 22, 2006 8:01 pm

cheby wrote:Hey,

Just read the post and a friend of mine couldn't get his fiesta to turn over properly and it turnt out to be the HT leads were on the wrong plugs, so they were firing in the wrong order. Maybe this could be the problem with yours. It did the same popping noise as described too. Hope this helps ...

Cheby
:D


Cheers for that but definatley aren't the HT leads - ive checked and double checked all the tappets with my dad too. Its very close to firing but doesn't - i think the clearances could be off because the "tappers" themselves are worn into a hole on the exact point they hit the value ends. Im going to adjust them (ie increase the clearences by a fair bit) and see if thats it.
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Postby Taff D on Fri May 12, 2006 7:56 pm

What does “Rocking” mean?
“Rocking” is a term used when the rockers open and close
the valves.


Can anyone explain this in more detail please?
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Postby getsmefroma2b on Mon Aug 07, 2006 10:42 am

Taff D wrote:What does “Rocking” mean?
“Rocking” is a term used when the rockers open and close
the valves.


Can anyone explain this in more detail please?


the rockers is the part which open and shuts the valves.

the inlet vaves open to let gas etc in to combust thus moving the piston. then as the inlet valve shuts it moves the exhaust valves at the same time to let out the waste which leaves via the exhaust.

the rockers work on like a piviot so when one valve shuts (inlet) the exhust valve will open.

make sense?
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Postby dave_p on Mon Aug 07, 2006 11:40 am

tred this a while agoonmine using the gudie fromthe haynes manualand it made them twice as loud as they where.

might try it when i get home from work, is it ok to do them with a warm engine?

are they the same for a 1.1?
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Postby getsmefroma2b on Mon Aug 07, 2006 3:36 pm

i dont beileve you should do them when they are warm,

for my old beetle i was sugested to leave it over night in the place you wanna check them, then work on it in the morning when the engine is dead cold.

could be different for a fiesta mind, might not matter.
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Postby nick050 on Tue Aug 08, 2006 11:11 pm

nope engine has to be cold before doing this.
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Postby MattUpson on Mon Oct 09, 2006 5:23 pm

OK, so i tried this at the weekend..following haynes manual. I must have done somthing wrong as it is twice as loud as before. It is a 1.3 HCS engine...

I followed every step carefully but would like to verify a few things please :D

1. When No.1 piston is 'rocking' should all the the rickers but at an even and equal height?
2. When adjusting the the specific ones, is it normal that there is slight play in others?
3. What could i have possbiley done wrong to make them louder!? :P

Any help would be GREATLY APPRECIATED!

Many Thanks,
Matt
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Postby MattUpson on Mon Oct 09, 2006 7:32 pm

Sorry for double post...but no-one? :(

My main concern is No.2 on list? To explain in more detail; Say I am adjusting 1+2 and these rokers have no play/movement, should it be that 3, 4, 5, 6, 7 and 8 rockers have some play in them? :S

Many thanks,
Matt
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Postby nick050 on Mon Oct 09, 2006 9:49 pm

when no1 is rocking i.e neither rocker on no1 cylinder should move then you can adjust cylinder 4 and yes some of the rockers will be loose on the other cylinders.
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Postby Mr Sam on Mon Oct 09, 2006 11:53 pm

wow sounds so simple i mite try get rid of that tappety sound another day
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Postby yulasinio on Tue Oct 31, 2006 4:51 pm

Follow the guide myself on a 1.3 LX '96 Fiesta yesterday.
The thing is the noise didn't stop and seems to be louder now :-?
But I gained more power from the engine, seems to respond more quickly.Any ideas what can be done to stop the noise?
Should I use other settings for this engine?
Can anyone provide the factory settings for this engine?
Any help would be well appreciated.

Thanks.
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Postby ADIMK3 on Thu Nov 23, 2006 12:22 pm

Hi all,


Maybe this will help you.Through many attempts here's what I found out:

The smaller the distance, the louder the engine+cam shaft altering.
Stick to 0.3 exhaust (or 0.5 if it is specified so on the rocker cover)and 0.2 mm intake (model up to '96) and pay attention when you insert the feeler gauge.If you insert it forcing a bit you are compressing the valve's spring even it is not visible.So the insert must be smooth (like cutting butter...)Always begin with No 1 cylinder and check for the little sign on the pulley to be aligned with the TDC mark on the block.You'll get the "prrrrrr" so nice and you'll love your HCS again. :) .

Good luck!
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Postby G4V on Fri Nov 24, 2006 5:24 pm

does this work for a mk 1.1 ?

and if someone if kind nuff to stick some pics up it would be apreciated :)
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Postby G4V on Sat Nov 25, 2006 4:05 pm

anyone ?

this work for a 1.1 mk3 aswell ?

please let me know
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Postby ADIMK3 on Sat Nov 25, 2006 5:05 pm

It works for 1.1 CFi
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Postby cbrpaul on Mon Feb 05, 2007 10:29 pm

Just thought i mention

My 1.3 ohv Endura E enigne is as follows

is 0.2 inlet , 0.5 outlet ,
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Postby cbrpaul on Wed Feb 07, 2007 9:42 am

adjusted last night , took 15 mins ,

alot better now :Q
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Postby curly on Sun Mar 04, 2007 4:43 pm

I plucked up the courage to try it. First try. Cocked up big style. Had a brew n second go. At 0.10 n 0.15 n its realy quiet? Also my tapets wher wayyyyy out
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