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Thread: Fulvia 1,3 HF

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    Fulvia 1,3 HF

    Hi all Fulvisti

    Have posted some info on the introduction section, but I will continue here on the Fulvia forum.

    I am now working on my engine and found that my 818.342 HF engine have cam wear. The inlet cam and rockers have survived, but the exhaust cam and some of the rockers was worn.

    What surprised me, was the fact that the cams did not have oiling holes. I have read through the DT ( 01/31 engine lubrication system)regarding the oilways and oil galleys. It show that oil pressure is fed trough the center cam caps on both cams and through the Hollow cams and both rocker shafts.

    As With current setup (no holes in cam lobe base circles) lubrication will only come from oil splatter (not directly on the lobes)

    William, Ed or anyone. Can you confirm if Your cams have oiling holes?


    Tor

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    Re: Fulvia 1,3 HF

    Tor

    Never seen a cam with an oil-way in its lobe on a Fulvia.....

    Tim

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    Re: Fulvia 1,3 HF

    Oil is sprayed directly onto the lobes through tiny holes in the rockers.

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    Re: Fulvia 1,3 HF

    Tim
    Thanks, you have seen plenty of Fulvia cams through the years.

    Bart
    Thanks, off course the rockers have oil holes.

    I see my head have helicoils repaired for the cap bolts. I think the original threads loosened and caps became loose at some point.
    This could perhaps contribute to lesser oil flow and damage to exhaust cam and rockers.

    Tor

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    Re: Fulvia 1,3 HF

    CamCap bolt threads in the head were all helicoiled as most of alloy threads on a Lancia.. These do fail as the torque spec is 1.25x over the helicoil M8 spec. Dont forget the caps also take strain from the cam cover top cap bolts.

    I have had (like many folk) to get these repaired when they fail. I generally try to use Time Serts that replace helicoil and are continuous thread, or failing that I use BigSerts. On one head I modified to take B20 rocker studs - much better as a M8 fine nuts is easy to torque down....

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    Re: Fulvia 1,3 HF

    Tim

    Thank you for Your information. Yes I think you are perfectly rigth. Some of my threads are drawn out several times. Some holes have helicoil down in the bottom and some holes have threads in the top that looks like time serts (they looks ok). Other holes seem to have the size I describe under, bigger outer diameter. They also look ok.

    I bougth a set With time sert on Ebay, only to find out that there was not enough material left in the holes to use them.
    Time sert looks very strong, unfortanetly they need tapping With M10X1,25.

    I need threads something Close to 12,0 mm. (I dont want to foul the dowels for the caps)
    Found some inserts in stainless steel With M8x1,25 inside and M12x1,5 outside. I think Outer diameter of threads are 11,8 mm or something.

    You mentioned big serts, is it what I am lookig for?

    Tor

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    Re: Fulvia 1,3 HF

    Hi Tor

    This is an M8 Bigsert

    https://www.threadkits.com/big-sert/...-series/58125/

    Being American some of the dimensions are still in Imperial!!!

    I have found they are only really available in Europe through the Wurth shops to order.....

    Be careful as there are water ways in the head close to the centre inlet threads (I know as I found one.....)

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    Re: Fulvia 1,3 HF

    Hi Tim

    Many thanks, I wiil be careful not to drill through.

    I will keep you updated.


    Tor

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    Re: Fulvia 1,3 HF

    Hi

    I will post some pics from my progress so far.
    It was Clear that my car needed some TLC. The front grill came as jig saw Puzzle.

    Click image for larger version. 

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    Made a jig and carefully tach welded it from backside.

    Tor

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    Re: Fulvia 1,3 HF

    Very nice work.
    Ed Levin
    Fulvia 1,6 HF

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