tappets

[mossy]

Im seriously getting naused by this now!

 

set the tappets 3times now...and its still going like a monster! and it taps even worse under load!

 

Set them to inlet 0.20mm and exhaust 0.55mm.

 

How can i stop them tapping, anybody got anyideas before i do something stupid to it!

[MexDan]

If you've had to set them three times then are they the same each time you set them???

 

What it sounds like your saying is that they are changed each time you go to set them again??

 

Are you setting them individually or on the rock???

 

[flyingbanana]

have you made sure the rockers arms are nice and even, so they have no roughness ?

[Jimbob-Squarepants ©]

Have you been messing about with your ignition timing mate??? Sounds like alot of advance on your distributor (Pinking)

[mossy]

doing it on the rule of nine method...individually

 

they are near enough the same each time i do it...

 

nope not touched the timing...

[Toby]

Rule of 9 is the best way IMO

 

What variation are you seeing?

 

Where did you get your 0.2 and 0.55 figures from? Standard cam?

 

Are you using the same fuel now as before?

 

As suggested "tapping" under load could very well be pinking. Don't keep thrashing it or you could very soon see damage.....

 

Check also for inlet manifold leaks which could affect mixture and promote pinking.

 

Check your timing.....what ignition system are you running? Compression and full advance?

 

Be carefull

[mossy]

Rule of 9 is the best way IMO

 

What variation are you seeing?

 

Where did you get your 0.2 and 0.55 figures from? Standard cam?

 

Are you using the same fuel now as before?

 

As suggested "tapping" under load could very well be pinking. Don't keep thrashing it or you could very soon see damage.....

 

Check also for inlet manifold leaks which could affect mixture and promote pinking.

 

Check your timing.....what ignition system are you running? Compression and full advance?

 

 

Yeah standard cam....valve lift was measured by a local turbosporter

 

yup same fuel since i brought the car

 

yeah someone else has mentioned pinking

 

had new gaskets when head was done

 

no idea on the ignition system...how can i tell?

[Toby]

Just check your ignition timing to start with then.

 

Sorry I don't know your engine set up....

 

Pinto / X Flow etc??

[mossy]

standard 1600 crossflow, whats the best way to check the timing?

[Toby]

With a strobe light or ask someone with one. As you rev the engine you will see the advance happening (using the light), if you don't there could be sticky bob weights in your dizzy. At about 4K then engine will stop advancing it's timing, that is what people call full advance - you probably want 10-12 degrees at idle and 28-30 degrees full advance to be safe. Peter at Sanspeed always uses the full advance method so the engine is safe when it's flat out. You just rev the engine untill you see no more advance happening. Swing the dizzy to get your 30 degrees, and then re-check it at idle.

 

A timing light with an adjustable dial on the back is needed for the above method.

 

You could ask someone off here to help - WPE, Geoff Harris, V6 Col etc...

[mossy]

With a strobe light or ask someone with one. As you rev the engine you will see the advance happening (using the light), if you don't there could be sticky bob weights in your dizzy. At about 4K then engine will stop advancing it's timing, that is what people call full advance - you probably want 10-12 degrees at idle and 28-30 degrees full advance to be safe. Peter at Sanspeed always uses the full advance method so the engine is safe when it's flat out. You just rev the engine untill you see no more advance happening. Swing the dizzy to get your 30 degrees, and then re-check it at idle.

 

A timing light with an adjustable dial on the back is needed for the above method.

 

You could ask someone off here to help - WPE, Geoff Harris, V6 Col etc...

 

Yeah i dont know anybody with one....and im bloody mileage from anybody else on here!

May just up my credit card and shove my pinto in there!

[Toby]

May just up my credit card and shove my pinto in there!

 

That's pretty extreme!!

 

Any local garage should be able to help.

 

Move you question into Waynes little engine corner area.

[radar tech]

remove the rocker assembly and check that the rockers arent worn. I had this prob years ago. You set them and they feel bang on but the rockers wear in the middle where they touch the valve stems. So the valave clearance is actually greater than what you set it too.If they are worn you can get over it by filing the rockers faces flush then it should shut them up.

[mossy]

remove the rocker assembly and check that the rockers arent worn. I had this prob years ago. You set them and they feel bang on but the rockers wear in the middle where they touch the valve stems. So the valave clearance is actually greater than what you set it too.If they are worn you can get over it by filing the rockers faces flush then it should shut them up.

 

last resort!

[Rick]

remove the rocker assembly and check that the rockers arent worn. I had this prob years ago. You set them and they feel bang on but the rockers wear in the middle where they touch the valve stems. So the valave clearance is actually greater than what you set it too.If they are worn you can get over it by filing the rockers faces flush then it should shut them up.

 

that sounds about right. im having the same prob

[mossy]

will do it tomorrow...if it still doesnt work...Im pulling it out!

[Rick]

they do wear side to side aswell (according to antz)

 

think you have to upgrade to steel posts and spacers to elimintae all the rattling.

 

the engines are old its to be expected

[Bluesplus2s]

I'd deffo get the timing checked, I messed about with my 1300E for ages, in the end I stopped it. Can't tell you what advance I'm running cos I ended up setting the timing by ear!

 

The trouble is, we have to run our old cars on this crappy unleaded petrol which has a lower octane rating than the old 4 star so the engine will 'pink' when under load.

 

If you get stuck finding someone who can check it let me know cos I don't think I'm too many miles from you.

[mossy]

re-checked the tappets again...Were all okay...Sounds as if its miss firing.

[Ratters]

did the pm make sence regarding the timing or do you want a photo?

[Bluesplus2s]

Just had a thought.....

 

Check the exhaust manifold nuts are tight, a slight blow between the head and the manifold can sometimes sound like tappets, I've had this before too!

[steve dray]

Also check to see if the cam lobes have worn. you can do this by removing the rocker cover and turn the engine by hand until the valves are on the rock, and see if there is a big overlap ie both inlet and exhaust valves open for a long time. check all 4 cylinders. I have come across this on fiesta's before, when the fail the emmission test for mot, might explain the missfire too.

[Ratters]

Also check to see if the cam lobes have worn. you can do this by removing the rocker cover and turn the engine by hand until the valves are on the rock, and see if there is a big overlap ie both inlet and exhaust valves open for a long time. check all 4 cylinders. I have come across this on fiesta's before, when the fail the emmission test for mot, might explain the missfire too.

 

that may be a good one ^^^

 

iirc when you posted the valve lift up either on here or ts [can't remember now? ] it was rather a low figure

 

how long would a ''long time'' be though for them both to be open?

[steve dray]

Also check to see if the cam lobes have worn. you can do this by removing the rocker cover and turn the engine by hand until the valves are on the rock, and see if there is a big overlap ie both inlet and exhaust valves open for a long time. check all 4 cylinders. I have come across this on fiesta's before, when the fail the emmission test for mot, might explain the missfire too.

 

that may be a good one ^^^

 

iirc when you posted the valve lift up either on here or ts [can't remember now? ] it was rather a low figure

 

how long would a ''long time'' be though for them both to be open?

 

 

Normally one valve is pretty much shut before the other opens, you can compare all 4 cyls, if one is different then thats the worn one, if there all the same then they are either all ok or all knackered!!