Can't Get WOT with Holley carb on a 66 442

RAMBOW · October 29th, 2009, 11:11 AM

Helping a buddy out last night, playing with his carb and i noticed he isn't getting nearly WOT with the pedal on the floor.

He has a 455 w/ torqer intake and a Holley 780DP

its a 66 442, so it has that funky Accelerator Rod assembly.

Interestingly enough though, my 66 cutlass has a Holley 650DP, and I CAN get WOT with my setup...

Is there any adjustability in the accelerator mechanism that mounts on the firewall? Do we need to bend some levers to get more play or ?

Initially i played with shortening the rod- but that keeps the carbs throttle arm from returning to idle position.

...
He was complaing about lackluster performance from his engine- Now i can see why- the secondaries would only barely crack open with his foot on the floor!!! He'll be in for a pleasant surprise when this is working properly.

citcapp · October 29th, 2009, 04:46 PM

Not familiar with that year of Old's linkage. Is it the type that goes though the floor the up to a belcrank on the firwall then out to the carb. There wasn't any adjustment. is the rod in the correct hole on the carbs bracket or maybe the carb does not have the correct braket for the rod. I would check that first.

Mongoose · October 30th, 2009, 05:45 AM

I'd check each of the attachment points from the carb linkage back... and since you have a 66 with the same linkage in good working order... you'll have that for comparison. It could be that one of the rods are bent, a joint in the linkage is badly worn or disconnected, or the attachment points on the carb or the gas pedal are in the wrong place, or loose.

Short of that... tell him to tie a string to the carb linkage... run it through the firewall... and just jerk back on the cord when he has a need to feel the wind rush through his hair. It would be an awesome mod to go along with some of the pix on this site of folks substituting lawn chairs and paint buckets for bucket seats!

Olds64 · October 30th, 2009, 06:12 AM

Unless your friend wants to keep his car "original" he might consider buying a Lokar product (apparently he doesn't care about originality since he has a Holley carb).

http://www.lokar.com/

Oldsguy used this throttle assembly to replace the accelerator pedal on his 46 Olds.

http://www.lokar.com/product-descrip...hrot-pedal.htm

He might also be able to eleminate the accelerator rod and insert a throttle cable available from Lokar or the local auto parts store.

October 29th, 2009, 11:11 AM	#1 (permalink)
RAMBOW Registered User Join Date: Mar 2009 Location: Bothell, WA Posts: 111	Can't Get WOT with Holley carb on a 66 442 Helping a buddy out last night, playing with his carb and i noticed he isn't getting nearly WOT with the pedal on the floor. He has a 455 w/ torqer intake and a Holley 780DP its a 66 442, so it has that funky Accelerator Rod assembly. Interestingly enough though, my 66 cutlass has a Holley 650DP, and I CAN get WOT with my setup... Is there any adjustability in the accelerator mechanism that mounts on the firewall? Do we need to bend some levers to get more play or ? Initially i played with shortening the rod- but that keeps the carbs throttle arm from returning to idle position. ... He was complaing about lackluster performance from his engine- Now i can see why- the secondaries would only barely crack open with his foot on the floor!!! He'll be in for a pleasant surprise when this is working properly. __________________ Ben R. 1966 Cutlass 330/320hp, HD 3spd Vid: My old elcamino gets owned by a Soccer mom in a volvo! Last edited by RAMBOW; October 29th, 2009 at 01:43 PM..

October 29th, 2009, 04:46 PM	#2 (permalink)
citcapp Super Moderator Join Date: Nov 2007 Location: Bothell, WA Posts: 3,445	Not familiar with that year of Old's linkage. Is it the type that goes though the floor the up to a belcrank on the firwall then out to the carb. There wasn't any adjustment. is the rod in the correct hole on the carbs bracket or maybe the carb does not have the correct braket for the rod. I would check that first. __________________ Pat 1957 Super 88 with a 455 1948 2dr series 76 with a 455

October 30th, 2009, 06:12 AM	#4 (permalink)
Olds64 Landyacht Club President Join Date: Jul 2007 Location: Lawton, OK Posts: 4,286	Unless your friend wants to keep his car "original" he might consider buying a Lokar product (apparently he doesn't care about originality since he has a Holley carb). http://www.lokar.com/ Oldsguy used this throttle assembly to replace the accelerator pedal on his 46 Olds. http://www.lokar.com/product-descrip...hrot-pedal.htm He might also be able to eleminate the accelerator rod and insert a throttle cable available from Lokar or the local auto parts store. __________________ Ferris, my father loves this car more than life itself... Apparently, you don't understand! Ferris, he never drives it! He just rubs it with a diaper! Cameron Frye Ferris Bueller's Day Off 1986

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October 30th, 2009, 05:45 AM	#3 (permalink)
Mongoose Registered User Join Date: Aug 2009 Location: Ft. Wayne, IN Posts: 38	I'd check each of the attachment points from the carb linkage back... and since you have a 66 with the same linkage in good working order... you'll have that for comparison. It could be that one of the rods are bent, a joint in the linkage is badly worn or disconnected, or the attachment points on the carb or the gas pedal are in the wrong place, or loose. Short of that... tell him to tie a string to the carb linkage... run it through the firewall... and just jerk back on the cord when he has a need to feel the wind rush through his hair. It would be an awesome mod to go along with some of the pix on this site of folks substituting lawn chairs and paint buckets for bucket seats!