[DeTomaso] Holley Carb jet extension-stalls on braking
wkooiman at earthlink.net
wkooiman at earthlink.net
Wed Jul 29 01:03:19 EDT 2009
For what it's worth...
I made an angled spacer out of a 2" plastic (phenolic) spacer. I didn't want to cut the intake. It's a relatively rare A331 intake for A3 heads - Torker style. It's worth more with the angle, and I plan on selling it one of these days.
At any rate, I was going to just bend the studs. I didn't want to redrill the intake. Remember, I want to sell this intake? The bent studs didn't work so well. I tried installing the studs at the normal angle. The carb fit fine, with normal nuts and normal washers. I was worried that the nuts would be at a weird angle, but it wasn't very bad at all.
The carburetor studs don't have to provide a ton of clamping force. As some have said, the carb studs are only there to hold the carb in place when the engine isn't running.
If I planned on keeping this intake long-term, I would have milled it flat, though. I mostly wanted to see if the stalling problem would go away if the carb were leveled.
-----Original Message-----
>From: JDeRyke at aol.com
>Sent: Jul 28, 2009 4:10 PM
>To: claywillmott at hotmail.com, detomaso at realbig.com
>Subject: Re: [DeTomaso] Holley Carb jet extension-stalls on braking
>
>In a message dated 7/28/09 10:22:51 AM, claywillmott at hotmail.com writes:
>snip.....
>> I recall a thread on the 351 C not being level and tilts forward which
>> may cause the car to stall in some cases with hard braking.
>>
>Any competent machine shop can alter a non-Pantera intake from a passenger
>car's 7 degree angle to flat. It involves milling the carb pad flat, then
>drilling the 4 carb stud holes deeper & parallel to the now-flat pad, then
>re-tapping the threads to the new angle; some shops will TIG-weld the stud
>holes closed before drilling and tapping. JB-Weld will not reliably compensate
>for reangled holes that are not deeper or welded up. Omitting this step wll
>cause the carb studs to be at an angle to the carb bosses and can break, bend
>or badly scar them up.
>Possibly, one could oversize the carb holes, then make four angled washers
>to compensate for the angle change, but this will then be a continuing PIA
>whenever you disturb the carb. Best to just make things permanently square;
>its obviously better to get a Pantera-specific or a racing style intake (both
>types are flat) manifold in the first place, even if an angled intake may
>be initially cheaper. Good luck- J Deryke
>
>
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