The Death Of Your Miura

Great post Jeff, and much-appreciated! Can't cover this scenario enough.

 

Several years back I saw an ingenious solution for this issue- an aluminum sloped tray was fixed & positioned between the carbs and the heads so that in case fuel spilled out would be channeled down a tube below the vehicle.

 

Dead? I didn't even know my Miura was sick....

 

You are 100% on the target. But arent'they six double barrel carbs?

And then i would like to know this: do we have alchool in euro gasoline too or this is just an USA "privilege"?

Thanks


ciao

 

Yeah, alcohol free gas.

That makes the car even harder use on any sort of trip than an all electric car.

Halon fire system and your brain!

Many a moon ago (1986) I was shopping for a mid engine Italian exotic and I was looking at a freshly restored Miura at my Alfa service shop. It seems it had caught fire once and was sporting a comprehensive newly installed fire system. I took note of that!

But the truth is any of these cars can have a horrendous fuel leak. Just look at those "original" fuel systems. OMG

On a warm summer's day I drove from SF to Gilroy with a fellow Bora owner to vist Al Butoni. My friend was picking up a spare head for his QPIII and discussing something with Al about the QV carb Countach he had bought from Al. BY the time we hit Palo Alto the gas gauge read almost empty?

When I checked one of the fuel fittings on a DCNF had come loose and almost the entire tank of gas had dumped into the V of the engine! Fortunately Maserati had wisely drilled a drain hole at the back that goes straight down and dumps over flange of the crank.

My clutch and bell housing got cleaned up!

We never smelt a thing?

Luck helps too ...

 

No, it is 4 Triple Carburetors.

 

Go Injected.. OH MY

 

Thanks. Triple Weber IDA like Porsche 911 2.2?

ciao

 

Flame on.. Borla-TWM Induction - Throttle Bodies (423) 979-4045

 

There are also alcohol-free unleaded race fuels available like C9 from VP Racing, Shell URT, and various other brands.

 

"Go Injected"

i'd rather be torched!

 

Miura = 40 IDL 3L. IDA=2 shafts, IDL=3 shafts.

-mick

 

Borla Induction has them so you can convert from Carbs to Injected.. really if the judges mark you off for a safety improvement they are flat out wrong.

 

LOL OK sure ...

 

In the mid 80's I saw at S.Agata - when it was the factory service center there was a German Miura with a 2 BMW electronic fuel injection systems - off their straight six.

 

Thank you Mick, i did not not know anything about Miura carbs.

I just remember from those years that the letter A at the end of the Weber write was to designate Alfa Romeo, L for Lamborghini and F for Ferrari. But QV uses DCNF.. a small mistery!

ciao

 

Alberto, the Miura weber carbs are designated IDL (the L for lamborghini) I believe the carb bodies are the same as Porsche used on early 911's (designated IDP). Main difference is that throttle linkage was changed to be used on the Miura. I'm don't know what alfa or ferrari may have used. If Jeff should read this he can explain in great detail any differences in the carbs should you have further questions.

 

That's true but the letter only changed if there was a difference - even if it was extremely minor. So DCNF would have indicated NO change from the "Ferrari" version.

-mick

 

So the "F" in DCNF is for Ferrari? I expect that the DNCFs used in Maserati's and Lamborghini's were somewhat different than those used in a Ferrari so I'm not buying this theory.

 

I actually wasn't trying to say that. When weber made changes, no matter how minor, a model like IDA may have turned into IDL indicating "lambo". So *IF* DNCF indicated Ferrari, and DNCF was used on a Lambo - one could imply that the base units were the same. However, there are normally prefix and suffix numbers and letters that indicate additional options and features. Like in the Miura case of 40 IDL 3L.

DCN = dual vertical throats, side float location, synchronous-opening via one shaft, sport carb

-mick

 

carbs on the ferrari 308 are 40 DCNF and on the Jalpa are 42 DCNF, virtually identical except the barrel diameter.

 

OK. Yes there are plenty of suffixes.

 

Yes bore maybe venturis, jetting etc. That's what I was getting at and is usually reflected in the suffix. But there can be other items too like the presence or absence of a starter valve on the DCOEs.

 

Thanks for the post Jeff, hopefully I never experience what you describe! But noted, and will always keep a fire extinguisher in the car!