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Author Topic: Fulvia Valve Clearances  (Read 2056 times)
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Charles Frodsham
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« on: 07 October, 2017, 06:47:07 PM »

I have looked through all previous posts for Fulvia and can't see any information or advice on setting valve clearances.....surely something done fairly regularly by owners. Have I missed this?

Am I right in saying the clearances on the 1600 are greater than for the 1300? Specifically 0.2mm inlet and 0.3mm exhaust, as opposed to 0.15 and 0.25 respectively on the 1300.

Is there a tool, or something that can be improvised, to adjust clearances?

Any other pitfalls or experience greatly received.

Charles
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Richard Fridd
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« Reply #1 on: 07 October, 2017, 07:20:07 PM »

I don't know anything other than feeler guages and spanners?
« Last Edit: 07 October, 2017, 07:24:53 PM by Richard Fridd » Logged

Richard Nevison Fridd
Jai Sharma
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« Reply #2 on: 07 October, 2017, 09:54:23 PM »

I also remember that the clearances on 1.6 were different to 1.3.
Omicron used to sell a nice little gadget to help you adjust them finely. It was not expensive and I guess they probably still do them. Otherwise as Richard says, feeler gauges and spanner.
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the.cern
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« Reply #3 on: 08 October, 2017, 03:24:55 AM »

I have a lovely gadget that sets tappet clearances based on the required clearance and the thread pitch of the adjustment screw.
The principle is very simple, a 'clicker' system gives an audio output to the angle through which the adjustment screw is turned, which can be translated into a gap measurement based on the thread pitch.
This far too difficult to describe in words ..... here is a link to a currently available version!!

https://www.frost.co.uk/gunson-clikadjust-tappet-adjuster.html

I hope I can find mine as it is so simple ...... Recently I have been using a spanner and feeler gauges, but the tool is far quicker and easier.

                                                    Andy
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lancialulu
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« Reply #4 on: 08 October, 2017, 07:23:42 AM »

I seem to remember those values quoted are correct.

The clicker adjuster (I have one too) is designed for agricultural machinery with tappet adjusters with a slot in the top. Hence mine has not seen any use on a Lancia as Lancia Fulvia engines use a 3mm? square top.... so you need a little slot spanner (and feeler gauge)

The clicker type of adjuster is great in as much as it takes out wear in the top of the valve stem where it is being hit by the tappet. This may be an issue (was for me on one engine) if the engine has been rebuilt with valves without hardened (stellite) tips. A feeler gauge goes stright across the dent in the top of the valve giving a false reading/ very tappety engine.

I have a lovely gadget that sets tappet clearances based on the required clearance and the thread pitch of the adjustment screw.
The principle is very simple, a 'clicker' system gives an audio output to the angle through which the adjustment screw is turned, which can be translated into a gap measurement based on the thread pitch.
This far too difficult to describe in words ..... here is a link to a currently available version!!

https://www.frost.co.uk/gunson-clikadjust-tappet-adjuster.html

I hope I can find mine as it is so simple ...... Recently I have been using a spanner and feeler gauges, but the tool is far quicker and easier.

                                                    Andy
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Its not the winning but taking part! or is it taking apart?
1955 Aurelia B12
1967 Flavia Vignale iniezione
1967 Fulvia 1.3HFR
1972 Fulvia 1600HF
1972 Fulvia 1600HF
1972 1600 Fulvia Sport
1979 2500 Gamma Coupe
1988 Delta 1.6GTi
1998 Zeta
Charles Frodsham
Senior Member
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Posts: 158



« Reply #5 on: 08 October, 2017, 08:45:36 AM »

Great information thanks.

I will contact Omicron on Monday!

I measured about 3.5mm for the top of the adjuster......will a 4mm spanner work? Or modify a 3mm spanner?

Where is the best place to measure clearances...top of valve or top of the short pushrod?

Sorry for all the questions , but I want to get it right.
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lancialulu
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« Reply #6 on: 08 October, 2017, 09:06:26 AM »

I use a small adjustable spanner and remeasure after locking up. I measure between the push rod and tappet and directly on the valve for those without pushrods.. It is a bit fiddly on the Fulvia
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Its not the winning but taking part! or is it taking apart?
1955 Aurelia B12
1967 Flavia Vignale iniezione
1967 Fulvia 1.3HFR
1972 Fulvia 1600HF
1972 Fulvia 1600HF
1972 1600 Fulvia Sport
1979 2500 Gamma Coupe
1988 Delta 1.6GTi
1998 Zeta
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