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Author Topic: Idiots guide to setting valve clearances.  (Read 2661 times)
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lancialulu
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« Reply #15 on: 27 October, 2023, 05:45:35 PM »

Thanks for that. It probably explains why I have one noisy tappet, even when they were tight. Hopefully its a tappet which is easy to change.
Normally it is the valve stem that de-forms and or the end of the little pushrod. tappets are tough little b's
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Its not the winning but taking part! or is it taking apart?
Lancias:
1955 Aurelia B12
1967 Fulvia 1.3HFR
1972 Fulvia 1600HF
1972 Fulvia Sport 1600
1983 HPE VX
1988 Delta 1.6GTie
1998 Zeta 21.  12v
Spider2
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Posts: 166


« Reply #16 on: 28 October, 2023, 10:32:29 AM »

I'll change the little push rods. Fingers crossed not the valve stem
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lancialulu
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« Reply #17 on: 28 October, 2023, 11:52:41 AM »

I'll change the little push rods. Fingers crossed not the valve stem
you can "polish" out the dents on the pushods with a fine shapening stone... If the valves are dented they will be difficult to get out of the head without dremelling the mushroomed area of the end of the valve stem.
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Its not the winning but taking part! or is it taking apart?
Lancias:
1955 Aurelia B12
1967 Fulvia 1.3HFR
1972 Fulvia 1600HF
1972 Fulvia Sport 1600
1983 HPE VX
1988 Delta 1.6GTie
1998 Zeta 21.  12v
nistri
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Posts: 542


« Reply #18 on: 28 October, 2023, 01:00:16 PM »

If the cupping of the valve stem top is not too bad, it is possible to file it down very gently with a metal file after having applied some grease to catch any filing. Vlve clearance should be measured with the engine cold (i.e. at  least 3 h after switching off).
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Andrea Nistri

Ardea S2
Appia S2
Fulvia GTE
Fulvia Sport 1.3 S
Fulvia Montecarlo
Fulvia Coupe 1.3 S
Spider2
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Posts: 166


« Reply #19 on: 28 October, 2023, 02:18:09 PM »

Thanks, all good tips. I have a spare engine that I am overhauling so I will swap the push rods one by one. I will get that little rattle.
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lancialulu
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« Reply #20 on: 28 October, 2023, 03:40:08 PM »

Thanks, all good tips. I have a spare engine that I am overhauling so I will swap the push rods one by one. I will get that little rattle.
rattle does not sound like tap(pets)??
Logged

Its not the winning but taking part! or is it taking apart?
Lancias:
1955 Aurelia B12
1967 Fulvia 1.3HFR
1972 Fulvia 1600HF
1972 Fulvia Sport 1600
1983 HPE VX
1988 Delta 1.6GTie
1998 Zeta 21.  12v
Spider2
Senior Member
*****
Posts: 166


« Reply #21 on: 28 October, 2023, 05:01:11 PM »

bad word, not rattle more a tick, tick, tick
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LCR1967
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« Reply #22 on: 02 November, 2023, 02:59:21 PM »

Does anyone know where to purchase the Lancia special tool for adjusting the clearance or a replica?
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nistri
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Posts: 542


« Reply #23 on: 02 November, 2023, 07:32:47 PM »

The disc type with a central slot used to be sold by Omicron. Nonetheless, it is not difficult to cut a suitable-size opening in a metal strip as a homemade tool. Feeler gauges and a 10 mm ring spanner are all you will need.Other tools are useful only for some valves and not for exhaust ones as there is no room to use them (they were originally for Fiat 500). In the old days Harry used to say that even a pair of small pliers was enough to turn the tappet screws. Very important that for any adjustment, each tappet pad is precisely at the opposite position to the cam heel.
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Andrea Nistri

Ardea S2
Appia S2
Fulvia GTE
Fulvia Sport 1.3 S
Fulvia Montecarlo
Fulvia Coupe 1.3 S
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