Temporary Oil Cooler By Pass | FerrariChat

Temporary Oil Cooler By Pass

Discussion in 'Mondial' started by Rapalyea, Jun 22, 2015.

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  1. Rapalyea

    Rapalyea Formula 3

    Jun 18, 2013
    1,511
    Georgia Mountains US
    Full Name:
    David Rapalyea alias
    I have a small oil leak that makes a mess. How is it possible to bypass the cooler until I receive a new one? Perhaps the existing hoses are long enough, one or the other. Or perhaps the two of them can be mated in some way?

    The fittings are large ones and I do not know what is their diameter or threat pitch.

    Thanks!
    Rap
     
  2. Bell Bloke

    Bell Bloke Formula 3

    Dec 6, 2012
    1,839
    UK
    Is the cooler leaking, if so can't you clean up the hole or crack or just pinch that run of the cooler matrix to cut the supply of oil just in that area? You'd only be restricting one pipe of which there must be 50? Better than no cooler at all.
     
  3. Rapalyea

    Rapalyea Formula 3

    Jun 18, 2013
    1,511
    Georgia Mountains US
    Full Name:
    David Rapalyea alias
    High Bell!

    I can not tell where the oil leak is. Depending on how hard the cooler is to get at I will 1) by pass it one way or the other 2) replace it with a used item 3) fix it.

    Fixing might not be all that difficult. Pinching the matrix probably would not work but plugging it up from the outside probably would. I would super clean the cooler then force high temp JB Weld metal epoxy putty all the way through from both side over and around the leak it in several tight layers. Duct Tape and JB Weld and you can fly to the moon. Almost literally [see Apollo 13].

    I have now twice been quoted $2,000 for a new item and not in stock! There are plenty of other options including just leaving it drip as it has been doing for six months now.

    Later,
    Rap
     
  4. rob

    rob F1 Rookie

    May 22, 2002
    4,284
    Vt
    Hey Rap I seem to remember Steve replaced the oil cooler before he sent the car to you, he had found it leaking and put another one in. I suppose it's possible that the replacement is now leaking but you may want to check the fittings/connections.
     
  5. rob

    rob F1 Rookie

    May 22, 2002
    4,284
    Vt
    Is it leaking on the driver's side?
     
  6. Rapalyea

    Rapalyea Formula 3

    Jun 18, 2013
    1,511
    Georgia Mountains US
    Full Name:
    David Rapalyea alias
    Hi rob,

    Yeah, Steve mentioned something about an oil leak prior to shipment but not sure exactly what he did. No problem till about six months ago and even so not much of a problem. Certainly driveable as is. The cooler is wet near the upper oil pipe. Might be an oil seal. Just don't know. I have decided to do some routine maintenance and have included the oil cooler on the list for my local wrench. For instance, the front rotors work ok but are worn down at least .35 inch. I like to use my brakes! So they have been ordered.

    In addition, while having my low voltage intermediate relay installed, I noticed all four of the CV joint boots had crack through, and a couple had separated. The joints are not making any noise so the general consensus is to simply clean, grease, and reseal them. I have decided simply to replace all four with new units mostly for simplicity sake.

    They come pre-assembled, greased and booted, and are less then $300 each. Sounds like a lot of money but I am an old guy who can take the easy road home if I so desire! Besides, what else is there to spend my IRA money on? For instance, what kind of hooker can you get for less then $300 these days? Not sure.....maybe a trip to Vegas to comparison shop might be something to consider?
     
  7. 308mon

    308mon Karting

    Oct 5, 2014
    169
    UK
    The oil coolers (oil radiator) are mostly Swedish "SETRAB" models so you should find an equivalent at a much nicer price. From memory the oil cooler connections should be an M22 fitting. I have for a long time successfully used a custom made stainless braided flexi pipe with banjo fittings either end to by-pass and remove the oil cooler on one of my vehicles and the oil pressure and temp parameters have been just fine (UK climate though and the oil temp never caused the OEM oil cooler fan to operate - which is the main reason you see a lot of these vehicles in certain climates with fans that have seized due to lack of use over 30 years)
     
  8. rob

    rob F1 Rookie

    May 22, 2002
    4,284
    Vt
    Rap your killing me LOL!!! If you think about it you are talking about a 1200 hooker since you are buying 4 cv joints. So you have to decide do you want to take care of your joint or your mondials?
     
  9. FCnew

    FCnew Formula Junior

    May 5, 2015
    687
    Hong Kong / Canada
    Full Name:
    Jonathan
  10. Rapalyea

    Rapalyea Formula 3

    Jun 18, 2013
    1,511
    Georgia Mountains US
    Full Name:
    David Rapalyea alias
    Thanks for the info! I have a potential source for a used item with hoses, and also have some people looking for hoses that could be used for bypass. I will remember M22 fitting in case I need one made. My 120 lb niece sells Mac and Volvo trucks [really!] and I suspect big rigs use such hoses and should be easy enough to have made if needed.

    As for temps? Here in the N. Georgia mountains we do get some 90F days [no sweat low humidity] but do not expect any trouble with a bypass. The existing cooler fan does not work and I need to work the car rather hard to get oil above 210F. Worked really really hard at 90F I got 230F a couple of times and backed off. But I don't do that anymore.

    Why? Not oil temps. No. I scattered a clutch disc at red line [perhaps red line plus] and 90F. That hurt. If it hurts when you do that don't do that anymore! I pretend red line is 6,500 and sometimes 'push it' to 7,000. But there is plenty of fun from 4,000 to 6,500 anyway.

    Your Summer days must be very long indeed this time of year! Enjoy the season.

    Best Regards,
    Rap
     
  11. Rapalyea

    Rapalyea Formula 3

    Jun 18, 2013
    1,511
    Georgia Mountains US
    Full Name:
    David Rapalyea alias
    A $1,200 hooker. OH MY! I'm thinking .... I'm thinking. A $1,200 hooker might even cure the sexual aversion therapy applied to me by my x-wife.

    I'm thinking.....
     
  12. rob

    rob F1 Rookie

    May 22, 2002
    4,284
    Vt
    Alright back on topic b4 we get in trouble, is it leaking on the driver's side?
     
  13. rob

    rob F1 Rookie

    May 22, 2002
    4,284
    Vt
    Oh just one more thing you could do a 50/50 replace 2 joints and get a $600 hooker.
     
  14. Rapalyea

    Rapalyea Formula 3

    Jun 18, 2013
    1,511
    Georgia Mountains US
    Full Name:
    David Rapalyea alias
    50/50. Oh jeeze. I just won't go there......

    Yes it is leaking on the driver's side. But that is where the oil cooler is anyway.
     
  15. dfranzen

    dfranzen Formula 3
    Owner

    Aug 31, 2013
    1,577
    Ponte Vedra Beach , FL
    Full Name:
    Don Franzen
    Are you sure its from the cooler

    is the cooler wet or is the hose wet

    the rubber under the stainless is "crimped" at the unions and will eventually seep

    recommend wiping with white paper towel several times pre drive after drive to see where seepage is coming from hose, union or cooler

    just my 2c
     
  16. rob

    rob F1 Rookie

    May 22, 2002
    4,284
    Vt
    I think this may be a possibility. When I had the car I had a small oil leak on the drivers side then the cooler was replaced prior to Rap getting the car so it may be a union leaking.
     
  17. PV Dirk

    PV Dirk F1 Veteran

    Jul 26, 2009
    5,401
    Ahwatukee, AZ
    This is where mine leaked. At the crimped hose end.
     
  18. Rapalyea

    Rapalyea Formula 3

    Jun 18, 2013
    1,511
    Georgia Mountains US
    Full Name:
    David Rapalyea alias
    The fins on the cooler near the upper connector are wet in to about one or two inches. Thats why I can't estimate if its the connector or not. I have options right now anyway. First, I am working on a possible simple bypass. In addition I just purchased a used oil cooler on Ebay that has both hoses attached. I paid about $650 bucks for all of it.

    One thing that is interesting is this. It seems to leak oil worse without pressure just sitting there then when up and running. Can't confirm that by actual observation, but I have not added oil in about 1,000 miles. With the car up on a lift it drips noticeably.
     

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