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Tech Talk => Engine Mechanical / Electrical => Topic started by: Tikotiko on June 23, 2020, 08:59:27 PM

Title: Holley 4160 help
Post by: Tikotiko on June 23, 2020, 08:59:27 PM

Anyone that knows about Holleys please. So as im putting everything back i realized that on the secondary side im missing the Metering plate BACKING PLATE. It was never there. Should be a gasket, Backing plate, gasket, metering plate not block like the primary then the float and bowl assembly. How bad is this going to be not having the backing plate

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Title: Re: Holley 4160 help
Post by: angermgmt on June 23, 2020, 09:08:53 PM

Do you have access to a schematic


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Title: Re: Holley 4160 help
Post by: Tikotiko on June 23, 2020, 09:31:08 PM

Quote from: angermgmt on June 23, 2020, 09:08:53 PM

Do you have access to a schematic


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No sir

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Title: Re: Holley 4160 help
Post by: angermgmt on June 23, 2020, 09:38:27 PM

https://documents.holley.com/techlibrary_4150_4160_exploded_view.pdf


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Title: Re: Holley 4160 help
Post by: angermgmt on June 23, 2020, 09:38:54 PM

If it’s missing you can order it from Holley


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Title: Re: Holley 4160 help
Post by: angermgmt on June 23, 2020, 10:04:08 PM

Also are you talking about the thin metal plate?


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Title: Re: Holley 4160 help
Post by: Tikotiko on June 24, 2020, 06:52:27 AM

Quote from: angermgmt on June 23, 2020, 10:04:08 PM

Also are you talking about the thin metal plate?


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Yes the thin plate that goes between the main and the metering plate

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Title: Re: Holley 4160 help
Post by: angermgmt on June 24, 2020, 07:07:51 AM

https://www.holley.com/products/gaskets/carburetor_gaskets/parts/108-122


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Title: Re: Holley 4160 help
Post by: Tikotiko on June 24, 2020, 07:21:20 AM

Quote from: angermgmt on June 24, 2020, 07:07:51 AM

https://www.holley.com/products/gaskets/carburetor_gaskets/parts/108-122


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Thank you. Everywhere i looked it was called a backer or backing plate so i couldn't find it. I was going to call holley today

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Title: Re: Holley 4160 help
Post by: angermgmt on June 24, 2020, 07:22:21 AM

Yeah even the schematic did.


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Title: Re: Holley 4160 help
Post by: Tikotiko on June 25, 2020, 07:42:13 PM

Quote from: angermgmt on June 24, 2020, 07:22:21 AM

Yeah even the schematic did.


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Well i learned more today. The backing plate is only necessary if the secondary side of the main has a power valve cavity on it which mine doesnt. It makes total sense in order the keep the gasket in check behind the metering plate.

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Title: Re: Holley 4160 help
Post by: Tikotiko on June 25, 2020, 07:43:33 PM

Quote from: angermgmt on June 24, 2020, 07:22:21 AM

Yeah even the schematic did.


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So in other words the carb is ready and i got my new filter setup in so maybe just maybe i can have it all back together this weekend.

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Title: Re: Holley 4160 help
Post by: 76Mantra455 on June 25, 2020, 08:00:26 PM

Quote from: Tikotiko on June 25, 2020, 07:43:33 PM

So in other words the carb is ready and i got my new filter setup in so maybe just maybe i can have it all back together this weekend.

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Right on...

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Title: Re: Holley 4160 help
Post by: angermgmt on June 25, 2020, 08:03:22 PM

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Title: Re: Holley 4160 help
Post by: TrollerDave on June 25, 2020, 09:00:31 PM

Quote from: Tikotiko on June 25, 2020, 07:43:33 PM

So in other words the carb is ready and i got my new filter setup in so maybe just maybe i can have it all back together this weekend.

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Good job.


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Title: Re: Holley 4160 help
Post by: Tikotiko on June 26, 2020, 06:58:28 PM

Fyi everyone incase you like digging in and learning everything about something like me. The 4160 series of Holley carbs made different model numbers including 3310-1 thru 3310-11. From 3310-4 and up they got rid of the power valve cavity on the main secondary side which eliminated the need for the secondary blacking plate that goes behind the metering plate.

On another note i could up upgrade to a Metering block on the socondary side but thats just more tuning for a rookie like myself and it doesn't sound fun especially since i have a  Yamaha Banshee that always likes to be tuned

I did upgrade the vacuum secondary with an easy spring change cap. And will be playing with some springs to see if I can get the secondary to work better. Tanks are still on the back burner due to a lack of time. Hoping to just make it passed this season with these unless the overtime stays steady. Im probably making them to be honest.


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Title: Re: Holley 4160 help
Post by: 96Laveycraft21Xt on June 29, 2020, 09:30:52 AM

Quote from: Tikotiko on June 26, 2020, 06:58:28 PM

I did upgrade the vacuum secondary with an easy spring change cap. And will be playing with some springs to see if I can get the secondary to work better.


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we have a 750 Vacuum sec carb on my brothers commander 2100 with a 454, we have been playing with the secondary springs.  right now we have gone from the original black spring (which never fully opens) to the purple and now to the orange.  we might go back up one step as there is ever so slight a bog when the secondaries kick in. 

* results may vary *  haha, just to give you a starting point.

Title: Re: Holley 4160 help
Post by: Tikotiko on June 29, 2020, 09:47:07 AM

Quote from: 96Laveycraft21Xt on June 29, 2020, 09:30:52 AM

we have a 750 Vacuum sec carb on my brothers commander 2100 with a 454, we have been playing with the secondary springs.  right now we have gone from the original black spring (which never fully opens) to the purple and now to the orange.  we might go back up one step as there is ever so slight a bog when the secondaries kick in. 

* results may vary *  haha, just to give you a starting point.

Niiice thanks for the tip

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