Ferrari 328 Power Issue | Page 2 | FerrariChat

Ferrari 328 Power Issue

Discussion in '308/328' started by MikeInPeoria, Oct 23, 2021.

This site may earn a commission from merchant affiliate links, including eBay, Amazon, Skimlinks, and others.

  1. mike996

    mike996 F1 Veteran

    Jun 14, 2008
    6,912
    Full Name:
    Mike 996
    Let us know if the coil wire issue was the problem... ;)
     
  2. MikeInPeoria

    MikeInPeoria Rookie

    Nov 23, 2020
    36
    Full Name:
    Mike Hernandez

    I sure will. I also think it's the distributor oil seal leak that is preventing the spark in the right bank.
     
  3. yelcab

    yelcab F1 World Champ
    Consultant

    Nov 29, 2001
    13,679
    San Carlos, CA
    Full Name:
    Mitchell Le
    Unlikely. Or 50% of all 308/328 will never run.
     
    EP328 likes this.
  4. spirot

    spirot F1 World Champ

    Dec 12, 2005
    15,196
    Atlanta
    Full Name:
    Tom Spiro
    they SHOULD last a long time - between belt changes and valve jobs, but they can easily be pinched and that is what causes the leaks. usually, the leak is not that bad, and does not cover the rotor or ignition lead head... but it can... if the person is inexperienced in the job they will always leak. I've had them changed by the Ferrari Dealer and they leak. Once it was really bad... so they had to re-do the entire belt job. usually, the one on the forward right side of the engine ( bank closest to the passenger's side ) is the one that leaks but they all can. BUT if you overfill the engine ... you can pump out quite a bit. it normally leaks down the side of the head, and drips onto the headers, .. you will see a trail of blue smoke.... it can be dangerous if there is a lot, but usually its small slow drip that burns off ... and when the engine cools down you get larger opening... causes the leak. 328's are a bit better than 308's.. not sure what was different but the little o rings are tiny. More annoying than anything.

    if you have a leak in the distributor - then defiantly clean it off, well, make sure the cap is not cracked or broken... that can cause all kinds of running issues. while in there check all your vacuum hoses too. that can mimic electrical issues. the auxiliary air valve is notorious for being noisy/ getting stuck, and the hoses under it can get cracked because they are close to the headers... lots of heat / cool cycles there. - they are not hard to replace just getting the right hose is important as there is a lot of vacuum. the Fuel injection in the 308-328 series is pretty bulletproof, ( unless its been tampered with in the past.) most issues are electrical - especially when they just pop up. I had a 308/328 for over 25 years - and learned to always start with electrics 1st. it's a weak spot. the 328 is better but not perfect.
     
  5. spirot

    spirot F1 World Champ

    Dec 12, 2005
    15,196
    Atlanta
    Full Name:
    Tom Spiro
    I agree. it can get messy in there, but usually does not stop them from running, unless it's a huge leak, and simply spraying it all over, which you would know as there would be a cup or more of oil in there.
    BE CAREFUL - as you un-do the distributer in case you have a lot of oil in there - the clutch inspection plate is right below the distributors - YOU DO NOT WANT OIL ON THE CLUTCH!!! - that would be a bad and $$$$day.
     
  6. spirot

    spirot F1 World Champ

    Dec 12, 2005
    15,196
    Atlanta
    Full Name:
    Tom Spiro
    I would agree - the injectors are not usually a problem... they can be clogged but don't cause the kind of running problem. they are surprisingly easy to replace on your own... the 308 cars are easy / hard at the same time. they have very particular quirks.... so you either know or not.
     
  7. MikeInPeoria

    MikeInPeoria Rookie

    Nov 23, 2020
    36
    Full Name:
    Mike Hernandez
    *** UPDATE ***

    Yesterday, I replaced the faulty ignition coil wire. I also replaced the two relays on the electronic ignition module. It started fine and idled ok last night. I just took it for a short drive and it ran fine. I'm going to see how a few cold and hot cycles do the rest of the day. So, it's running fine for now.
     
  8. MikeInPeoria

    MikeInPeoria Rookie

    Nov 23, 2020
    36
    Full Name:
    Mike Hernandez
    **** UPDATE #2 ****

    After replacing the ignition wire to the distributor, the car ran great all weekend. Today, .I took it for a short test drive and I lost power again after it was brought up to temp. Luckily, I was near the repair shop and just dropped it off. Back to the drawing board and reviewing all of the suggestions on this thread.
     
  9. mike996

    mike996 F1 Veteran

    Jun 14, 2008
    6,912
    Full Name:
    Mike 996
    Sorry that didn't solve the problem but per an earlier post, by the description of the symptoms, it sounds like a fueling issue, not an ignition issue. Be interesting to see what the shop finds.
     
  10. spirot

    spirot F1 World Champ

    Dec 12, 2005
    15,196
    Atlanta
    Full Name:
    Tom Spiro
    does it restart once its cooled down? I would then look at Vacuum leaks. and or check fuses again. fuel pump fuse / circuit.
     
  11. MikeInPeoria

    MikeInPeoria Rookie

    Nov 23, 2020
    36
    Full Name:
    Mike Hernandez
    It's hard to say. After the first repair, which included the injectors, it ran fine for 50 miles or so. Then, it failed again and I discovered the bad ignition coil wire. After that was replaced, it ran well for 5 cycles and approximately 66 miles.
     
  12. spirot

    spirot F1 World Champ

    Dec 12, 2005
    15,196
    Atlanta
    Full Name:
    Tom Spiro
    Its frustrating. My 328 was pretty reliable except for electrical - and vacuum issues... and they can mimic each other. unless you have a bad Warm-up reg or cold start valve, there is not too much fuel wise to go wrong. checking the CO could give you an indication of running issues rich or lean ... and then confirm fuel delivery... having owned one of these for 20 years - it's usually electrical... or air/ vacuum related.

    there is a tiny o ring on the idle screw - on the inside, and if that gets cracked /old it can drive you crazy by letting in unmetered air... same with a lot of the vacuum lines. same with the Aux Air valve - if it's not closing as the coolant gets warm... same issue. after it sits and cools down / cold - does it start up again?
     
  13. MikeInPeoria

    MikeInPeoria Rookie

    Nov 23, 2020
    36
    Full Name:
    Mike Hernandez
    Thanks for the suggestions! Once I get it to a stop and shut if off, it always starts and runs, but with the power loss.
     

Share This Page