Distributor shaft o-ring replacement 85 QV | FerrariChat
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Distributor shaft o-ring replacement 85 QV

Discussion in '308/328' started by 308 milano, Jun 21, 2020.

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  1. 308 milano

    308 milano F1 Veteran

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    #1 308 milano, Jun 21, 2020
    So I’ve been wanting to change these out for sometime but a little hesitant. Remember my buddy changing them out on my 84 GTB and it took him less than an hour for both distributors. (mechanic by trade )That was 10 years ago however. Come across only two threads that show the process. One is for a 2v and the other for a 328, which seems the proper procedure I should use. My biggest question is removal of the distributor shaft. Do I simply just make a reference mark on the shaft and one on the block? Would be just my luck to pull these and jack the timing up. Any step-by-step with photos would be great if available. Thanks!
     
  2. yelcab

    yelcab F1 World Champ
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    #2 yelcab, Jun 21, 2020
    There is no timing to jack up. It is all electronic. Just put a mark on the distributor body in relation to the valve covers. Put it back the same way.
     
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  3. 308 milano

    308 milano F1 Veteran

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    #3 308 milano, Jun 21, 2020
    Also, my car has never had the cork gasket (85 Euro) that fits between housing and cap. Is this normal for a Euro model? Been MIA for the nine years I’ve owned it. Thanks
     
  4. 308 milano

    308 milano F1 Veteran

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    #4 308 milano, Jun 21, 2020
    Many thanks Mitchell
     
  5. ferrariowner

    ferrariowner Formula 3

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    #5 ferrariowner, Jun 21, 2020
    It should have a cork gasket.
     
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  6. 308 milano

    308 milano F1 Veteran

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    #6 308 milano, Jun 22, 2020
    This is the only write up that I found on the procedure and the car was a late 1988 328. It was my understanding that the 85 QV and the 86/87 328 had basically the same engine. I am away from home at the moment but this distributor looks quite different from mine. Point being, would like to order the O-rings/gaskets if possible while I’m away so the car isn’t disassembled for two weeks while I wait for parts or away at work. Guess I’ll make a few calls as time allows
    http://ferrari.cdyn.com/carl_rose_docs/Ferrari 328 Distributor Shaft Seal Replacement.pdf
     
  7. 308 milano

    308 milano F1 Veteran

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    #7 308 milano, Jun 22, 2020
    Spoke with Bill at GT car parts in Arizona just now. Link posted above is way different.
     
  8. dwhite

    dwhite F1 Rookie

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    #8 dwhite, Jun 22, 2020
    Last edited: Jun 22, 2020
    To change the o-rings you have to knock out the roll pin and pull the shaft out. When I did mine I just noted which way the rotor faced. It can only be in correct or 180 degrees out as the pin has to pass through the shaft. I ordered o-rings from my f-parts guy and got the wrong size. Wound up just using HF o-rings.

    Now the shafts also have a seal.
     
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  9. yelcab

    yelcab F1 World Champ
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    #9 yelcab, Jun 22, 2020
    Do you want to change the O ring, or the oil seal? One is easy, the other is not.
     
  10. 308 milano

    308 milano F1 Veteran

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    #10 308 milano, Jun 22, 2020
    Is this procedure correct for a QV? I stumbled across a thread that showed this for an injected 2v. Don’t remember taking a hammer and punch to my 84 GTB to change the O-rings.
     
  11. 308 milano

    308 milano F1 Veteran

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    #11 308 milano, Jun 22, 2020
    Noticed a drip of oil in the forward distributor cap each month. That’s what I’m trying to remedy.
     
  12. yelcab

    yelcab F1 World Champ
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    #12 yelcab, Jun 22, 2020
    Then change the Oil seal first. That is easy.
     
  13. dwhite

    dwhite F1 Rookie

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    #13 dwhite, Jun 22, 2020
    Yes, the seal is for the outside of the shaft and quite simple. The o-ring seals the inside.
     
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  14. 308 milano

    308 milano F1 Veteran

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    #14 308 milano, Jun 22, 2020
    OK thanks guys. The printout that Bill sent me does indeed look like I have a roll pin that needs to be knocked out on the Euro QV. Image Unavailable, Please Login
     
  15. yelcab

    yelcab F1 World Champ
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    #15 yelcab, Jun 22, 2020
    Yes, to get to that ... you ... remove the cam shaft, put it in a vise, punch out the pin, knock out the coupler, and replace the oring.

    Before that, you have to remove the AC compressor, alternator belt, water pump belt, timing belt tensioner, timing belt, cam cover, end plate, distributor cap, ... all this AFTER you drain the coolant and remove the hose-pipe in front of the engine.

    On the way back, of course, you replace the timing belt, the seals front and back, valve cover gasket, coolant, and anything else you threw out.

    Needless to say, you would save this job for when you do a major service on the car. The last one I did, the pin refused to come out and had to be drilled out. That was less than fun.
     
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  16. 308 milano

    308 milano F1 Veteran

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    #16 308 milano, Jun 22, 2020
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  17. Cuddy K

    Cuddy K Karting

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    #17 Cuddy K, Jun 23, 2020
    I replaced the o rings on my 85 US QV using that writeup and all is well. Go very gently on that roll pin. And note the orientation of the rotor.
     
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  18. swazzy

    swazzy Rookie

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    #18 swazzy, Aug 27, 2023
    Last edited: Aug 27, 2023
    Question for this old thread- I’ve already replaced the seals on my 84 QV but the front distrib is still leaking oil. So want to do change the o-ring, and of course not remove the entire cam shaft. So my question is, i assume it’s bad for the cam shaft if you are banging out that pin? Will light taps get the pin out ? Anyone have luck removing the pin with the cams still in?
    Thanks.
     

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