| Re: Removal of 308 carbureted airbox | <– Date –> <– Thread –> |
From: Peter Rychel (dino308gt4 hotmail.com)
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| Date: Wed, 10 Nov 2021 21:29:07 -0800 (PST) | |
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He is talking about these spacers that fit inbetween the air horns and carburetor top. They fit into the holes of the rubber gasket that seals the carb to the airbox. Rob and I have discussed this numerous times through email and on the phone. I’ve always installed them so the rim of the spacer is on TOP. They fit into it’s mating recess of the rubber gasket and ALWAYS come off when you lift the airbox off of the carb top studs. Almost everyone installs these with the rims facing down – it’s indicated as such even in the parts diagram. I believe they did this to reduce stress on the carb top surface, but I don’t buy that theory. First off, it’s a 4mm thread. You’re using a nylock nut to secure it. I mean, these things are on just slightly more than hand-tight. There’s going to be no damage caused to the zinc carb body, or the air horns if installed the other way, from contact pressure of the narrower portion of this spacer. https://www.ferrariparts.co.uk/part/ferrari/103925
Peter Sent from Mail for Windows From: Rick Moseley My 308 was a first year fuel injected car. I've worked on friend's carbed cars, but not on the carbs themselves. I remember following your carb rebuild intensely when you were doing them... Fchat?? But I don't have a clear picture in my head of what you are referring to. Please, post some pictures. On Wednesday, November 10, 2021, 10:20:54 AM PST, Robert W. Garven Jr. <rgarven [at] gmail.com> wrote:
Having done this at least 50 times neither solution works. When I tried to glue them on this did not work for me, because the rubber gasket moves around a bit
and there’s also a bit of slop in between the studs in the carburetor and the little top hat washers For them to move around a bit so that they can fit together with loose tolerances. And if you put them on the top of the rubber gaskets, that’s not how that
the design works as there is a small indented groove into the bottom of carburetor trumpets where the thinner part of the top hat was designed to fit. The wider part of the design rides on the top of the carburetor and fits into a groove that’s molded into
the bottom of the rubber gasket also. Of course you can do both of these modifications which I tried among others but neither one works satisfactory, fits well or how it was designed to work. As you can imagine I’ve tried all these and and Peter and I have discussed this on numerous occasions over the years. What I found that works really good is
to first remove the breather hose that attaches to the bottom of the airbox which allows it to rise up vertically, then as I lift it up (the air box) I take a long bamboo skewer and just kind of push down each top hat washer till it falls out of the rubber
gasket and sits on the carburetor top and then you can lift the airbox off straight up without losing any of the washers . To me what’s harder is removing the 16 washers and small nuts that go on top of the trumpets and hold them to the airbox. I have to
use two specific tools to do that because it’s hard to get to. Ferrari actually left some cut outs in the trumpets to get a tool down in there but I’ve tried every combination of sockets and what I used is a small socket screwdriver to remove it after I use
a short quarter inch socket extension and short socket to loosen it first. I have lots of pictures if you guys are that interested, but I doubt that you are.😎
i’m sure some people can knock this out in a few minutes but it takes me a couple hours to do it safely I said every moisture and not in a little lime to make sure that I have all 16 before I proceed. Rob Sent from my iPhone > On Nov 10, 2021, at 8:43 AM, Hans E. Hansen <FList [at] hanshansen.org> wrote: >
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Or turn the spacers upside down so they come off with the air cleaner.... >
> Hans. >
>> On 11/10/21, Douglas Anderson <dnt [at] dock.net> wrote: >> Nice picture Rob – but then you’ve always been a good photographer. >>
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>> I see you have the rubber gasket under the air horns. VERY tricky to remove >> the air cleaner without losing one or more of the metal spacers . . . down >> the carb throat. Thankfully the spacers are made of a magnetic material . . >> . and COUNT all of them before starting the engine, eh? >>
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>> My solution is to immobilize the little bastards in place. So, with the air >> cleaner removed, I placed the spacer on the air horn stud and put one drop >> of Loctite 242 blue on them. Easy enough to break the bond should I ever >> need to get into the carb and they seem to stay in place when I remove air >> cleaner. >>
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>> Again – nice picture. >>
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>> Doug >>
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Removal of 308 carbureted airbox Robert W. Garven Jr., November 10 2021
- Re: Removal of 308 carbureted airbox Douglas Anderson, November 10 2021
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Re: Removal of 308 carbureted airbox Rick Moseley, November 10 2021
- Re: Removal of 308 carbureted airbox Peter Rychel, November 10 2021
- Re: Removal of 308 carbureted airbox LSJ, November 10 2021
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Re: Removal of 308 carbureted airbox George, November 12 2021
- Re: Removal of 308 carbureted airbox Robert W. Garven Jr., November 12 2021
- Re: Removal of 308 carbureted airbox Robert Garven, November 12 2021
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