generator heat sheild.... | FerrariChat

generator heat sheild....

Discussion in '206/246' started by gblue, May 16, 2007.

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  1. gblue

    gblue Formula Junior

    Dec 26, 2005
    317
    Maui Hawaii
    Full Name:
    Gregg Blue
    Aloha from Maui........I've had 2 generators go out in the last year, and was told that it may be due to no heat sheild (diodes don't like to get hot). I don't think my car had one, so I'll probably make one. Anyone out there have a 206 with the heat sheild?

    Mahalo..Gregg 206 GT #00350
     
  2. 4redno

    4redno Formula 3

    Mar 21, 2006
    1,067
    Seattle, WA
    Full Name:
    Keith Mitchell Wintraub
    Dennis McCann has one for sale. Heck of a lot quicker than building one so check it out

    300015 ALTERNATOR HEAT SHIELD, DINO 246 (USED) 82311096 $195.00
     
  3. gblue

    gblue Formula Junior

    Dec 26, 2005
    317
    Maui Hawaii
    Full Name:
    Gregg Blue
    Aloha Keith....I talked to Dennis earlier and he said he was out of them.....does it pass UNDER the alternator? That's where the headers pass.

    I don't have a 246 book that would show it.

    Mahalo...gregg
     
  4. 4redno

    4redno Formula 3

    Mar 21, 2006
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    Seattle, WA
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    Keith Mitchell Wintraub
    Have you got a 206 parts book? There is a good image of the shield in the book as well as its location.
     
  5. 2NA

    2NA F1 World Champ
    Consultant Owner Professional Ferrari Technician

    Dec 29, 2006
    18,221
    Twin Cities
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    Tim Keseluk
    #5 2NA, May 16, 2007
    Last edited by a moderator: Sep 7, 2017
  6. gblue

    gblue Formula Junior

    Dec 26, 2005
    317
    Maui Hawaii
    Full Name:
    Gregg Blue
    I have #16 sheild in place, but the headers (#14) pass UNDER the bottom of the generator....I'd like to see a 246 parts diagram to see if there is a sheild between the generator and the horizontal header pipes..........is #20 a heat sheild?
     
  7. 2NA

    2NA F1 World Champ
    Consultant Owner Professional Ferrari Technician

    Dec 29, 2006
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    Tim Keseluk
    #7 2NA, May 16, 2007
    Last edited by a moderator: Sep 7, 2017
    Here's the 246 diagram. Part #26 is the alternator heat shield. There's a nut welded to the header that it attaches to. If I recall, it's just a piece of aluminum bent up to cover. There may be a second fastener, a piece of strapping around pipe with a screw to hold it straight.
    Image Unavailable, Please Login
     
  8. gblue

    gblue Formula Junior

    Dec 26, 2005
    317
    Maui Hawaii
    Full Name:
    Gregg Blue
    thanks....#26 is the 246 sheild that is missing from my car......
     
  9. 4redno

    4redno Formula 3

    Mar 21, 2006
    1,067
    Seattle, WA
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    Keith Mitchell Wintraub
    Greg, I think the 206/246L heat shield is different. Let me take a look in my parts book tonightl.

    ...Keith
     
  10. celestialcoop

    celestialcoop Formula Junior
    Silver Subscribed

    Mar 20, 2006
    715
    Full Name:
    Coop
    #10 celestialcoop, May 16, 2007
    Last edited by a moderator: Sep 7, 2017
    Gregg,
    Check out the ones that Superformance sells.
    http://www.superformance.co.uk/a-246/exhausts.htm
    I've attached the diagram (See item 17) from a 246 parts catalogue to give you an idea what the alternator shield looks like; Superformance sells it for about 96 bucks. Make sure you have all of the shields, as they do protect the heat sensitive components: Drive shafts/boots, starter/alternator, R/H fuel tank (!), cockpit firewall & stuff mounted thereon. 'don't know if 206 has 'em all. 'seems like it should!?
    Actually, I believe that item #26 mentioned by Tim may be the fuel tank shield.
    See my war story--it'll make you a believer.
    http://www.ferrarichat.com/forum/showthread.php?t=140807&highlight=Heat+Shields+Gotta+Love+%22em
    Cheers,
    Coop
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  11. 4redno

    4redno Formula 3

    Mar 21, 2006
    1,067
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    Keith Mitchell Wintraub
    Item 17 in Coop's photo is what I've got on my Dino.

    That's a cheap fix if you ask me!
     
  12. gblue

    gblue Formula Junior

    Dec 26, 2005
    317
    Maui Hawaii
    Full Name:
    Gregg Blue
    thanks..looks like a big box to me.....nothing some aluminum can't cure
    looks like up in the air it goes........Gregg
     
  13. 4redno

    4redno Formula 3

    Mar 21, 2006
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    Keith Mitchell Wintraub
    It's actually an unusual shape and is a tight fit at that if I remember correctly. Unless you have an original one to make a template from, I'd just buy it and install it. My $0.02.
     
  14. gblue

    gblue Formula Junior

    Dec 26, 2005
    317
    Maui Hawaii
    Full Name:
    Gregg Blue
    McCann has none.....where to buy?
     
  15. John Corbani

    John Corbani Formula 3
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    May 5, 2005
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    John Corbani
    Looks like 3 simple pieces of flat 1/16" aluminum sheet, bent as required and pop-riveted together. Make up a cardstock model using ...COOPs drawing as a guide. Any sheet metal shop can duplicate or you can buy sheet and do it yourself. End sheet is flat and only serves to attach shield to angle bracket. Fun to get your hands dirty. Make sure the attach hole is there before going any further.

    Let us know what you do.

    John
     
  16. celestialcoop

    celestialcoop Formula Junior
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    Mar 20, 2006
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    Coop
    'just a reminder. All of the heat shield pieces are lined with something akin to asbestos. The edges are crimped over, capturing the liner. I don't know what Superformance uses, but we have a plethora of space-age blanket material available through Jegs, or any number of speed shops, that could be sandwiched inside the metal shields. There are several pictures of actual OE shielding that were posted in response to my thread. Have a look at those at
    http://www.ferrarichat.com/forum/showthread.php?t=140807&highlight=Heat+Shields+%27gotta+love+%27em
    I made the "RHS" shield out of thin sheet steel. That's the one that lays on top of the forward header as it passes the fuel tank (Gregg referred to it as #14). I removed the r/r wheel & splash shield for cramped access, but the alternator shield might be tricky without a pattern...especially w/engine in situ. 4redno has a good idea about buying that one ready-made. Having said that, if you're gonna have a go at fabrication, put the car up on a lift so you can stand under the car to make up some patterns & trial fit & then install the finished product.
    I suppose all bets are off with USA-spec cars. The cladding on those headers acts as a super-shield. However, if you remove it, as John and Jon (omgjon) have, you will likely have to weld the attachment 'risers' & nuts onto the primary pipes (a bit of a challenge for a novice welder as I believe the tubing is S/S on the US cars?).
    Lastly, 2NA referenced aluminum as the construction medium. Since a number of the shields are bolted to the headers, will aluminum stand up to the intense heat? Perhaps they are made of stainless or...?
    While we're at it, a nice touch might be to glue/attach some of the aluminized matting insulation against & under the trunk bulkhead, as has been mentioned by several Dino & 308 owners. That'll keep the Dinoplex & coils cooler...not to mention luggage, coats, purses, lap tops, groceries, etc.
    Cheers,
    Coop
     
  17. gblue

    gblue Formula Junior

    Dec 26, 2005
    317
    Maui Hawaii
    Full Name:
    Gregg Blue
  18. 2NA

    2NA F1 World Champ
    Consultant Owner Professional Ferrari Technician

    Dec 29, 2006
    18,221
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    Tim Keseluk
    If you are shielding the alternator be sure to leave air space between the shield and the alternator. Don't black the airflow through it. Alternators are heat producing devices and need their own cooling.
     
  19. celestialcoop

    celestialcoop Formula Junior
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    Mar 20, 2006
    715
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    Coop
    Gregg,
    As Tim noted, the alternator does need to breathe. The JEGS product makes sense for the starter motor, as it is only used for short periods & does not generate much heat. I think the factory design may still be the best option for the alternator as it shields and allows air to circulate. If you make your own, you might be able to improve a bit on material and or function. Remember to secure any insulation and metal shielding to prevent contact with rapidly moving parts.
    There was a similar discussion (re: Wrapping the pipes) in the 308/328/Mondial Forum, too.
    http://www.ferrarichat.com/forum/showthread.php?t=148764
    And, as a spin-off to that discussion, what do you all think of this item at the site that Jbryant referred us to?
    http://www.aircraftspruce.com/catalog/eppages/headerblnkt.php
    It's a blanket that drapes over the top of the headers, reducing the heat in the engine bay, yet allowing air to flow on the engine side of the primary pipes (similar in form & function to Item #7 in the diagram that 2NA posted earlier). That way the mild steel tubing on Euro cars will live longer than when totally wrapped. Of course, the shields that protect the components between the engine/transaxle and the exhaust would definitely have to in place. At any rate, another option to consider for energy management.
    Cheers,
    Coop
     

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