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Thread: Ferrari 348 engine bay and rear end restoration.

  1. #31
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    Paul
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    Quote Originally Posted by Pangea View Post
    Hi Paul, Thanks for the tip. The pipe in question looked in good shape and cleaned up fine. Did not see a reason to replace it this time round. I know
    what you mean though and have had to replace similar items on other vehicles over the years. Thanks again. Why have you pulled your engine to
    pieces.? Did something let loose?
    The engine was running OK but i was doing a restoration on the car (Similar to you) and found 1 of the cylinders low on comp. I then stripped it down to find one the inner valve springs had broken, so i changed all 32 of them along with the valve guides.

  2. #32
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    Nick
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    Do you think the spring was the cause of the low compression? Normally its an exhaust valve/seat or piston problem. Was the break on the low
    cylinder? I take it it was.
    Just for interest sake.
    Thanks.

  3. #33
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    Yes it was the valve on that cylinder, here is what was left of the spring and the valve guide (on the left) new springs on the right.

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  4. #34
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    Ive had an intermittent problem with the petrol cap not opening from the switch. I took a look at the connector under the wing and this is what I
    found in pic 1. Not great as you will agree so I replaced it with a new two pin Bosch plug. Fully sealed against moisture unlike the nasty old Ferrari/
    Fiat plug. Lets see what happens and I will let you know. Im hopeful.

  5. #35
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    Quote Originally Posted by PAUL V View Post
    Yes it was the valve on that cylinder, here is what was left of the spring and the valve guide (on the left) new springs on the right.

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    Wow. It really did break up. Ive seen a few springs like this over the years but normally on race or rally cars. It does happen on road cars but its
    not that common a fault. I built Subaru STI engines for years and saw quite a few then but normally just broke in two. Hard revving can take its toll
    over time.

  6. #36
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    Quote Originally Posted by PAUL V View Post
    The engine was running OK but i was doing a restoration on the car (Similar to you) and found 1 of the cylinders low on comp. I then stripped it down to find one the inner valve springs had broken, so i changed all 32 of them along with the valve guides.
    Hi Paul, Again for interest, how low was the bad compression in relation to the others. Thanks.

  7. #37
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    Quote Originally Posted by Pangea View Post
    Hi Paul, Again for interest, how low was the bad compression in relation to the others. Thanks.
    You know i can not remember as this was back in 2009 but reading my thread on F-chat it was down to 50 PSI i think the others were 150 ish ? what was confusing at the time was it would go up to say 90psi then back down to 50, but a bore scope in there and all looked fine.

    You may want to look at the thread on F-chat, i started work on mine in 2006 and only got it on the road this year !

    Here is the thread http://www.ferrarichat.com/forum/348...-my-348-a.html

  8. #38
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    Hmm. I would have thought you would have noticed a missfire as low as that. Interesting. I will check out your link. Im pretty sure Ive been there
    for something.

  9. #39
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    Some shots of the suspension built up.

  10. #40
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    Im not one for too many mods but I do rate Goodridge hoses. These are the Phantom range. Still look fairy stock due to the black coating and have stainless steel ends which means they will always look decent. Usually give a more positive brake pedal feel too. Dot 5.1 brake fluid used for bleed.
    New retaining clips fitted.

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