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cmw
02-03-2012, 02:36 PM
It's been awhile since I have asked for help, but here I am again. I have a 1990 Maristar 210 with an Indmar (chevy) 454 and a Holley 4150 carburetor. I rebuilt the carburetor and I am still having problems. I have read most of the posts about carburetors and I am now more confused about what to do. My 4150 is a duel fuel feed that is 22 years old and seen a lot of hours. I am thinking of replacing it with a 4160 duel feed. I am not sure if a 4160 750 cfm will work on my engine. Not sure if there are different 4160's for different applications and how much difference the cfm makes. Would a 4160 duel feed work? I see a lot of single fuel feed out there. If I go duel feed I'm thinking I need to replace the fuel line since a 4160 does not have two meter blocks. Hoping someone can tell me my thinking is correct or not. Any help would be appreciated.

Chris

CantRepeat
02-03-2012, 02:53 PM
This 4160 is like a type number. The number you are most interested in is located on air horn. They make several 4160s ranging from 390 to 780 cfm.

It appears the marine version of the vacuum secondary 4160 750 is the 9015-1.

http://www.holley.com/0-9015-1.asp

They also have a mechanical secondary version that you could convert to an electric choke.

http://www.holley.com/0-80537.asp

I would bet either of these would need to be jetted.

cmw
02-03-2012, 09:34 PM
Thanks Tim. I was hoping you would reply. I remember you did this to your old 210. Thanks for the info and I will let you know how it turns out. Need to work on my old truck this weekend, so the boat has to wait untill next week.

thatsmrmastercraft
02-03-2012, 09:54 PM
Some of the guys on here have gone through National Carburetor and have been pleased with the result. There are also a few who weren't satisfied. http://www.nationalcarburetors.com/marine/fourbarrelholley.aspx

SKIDIM specs this as the correct carb for the 454. http://www.skidim.com/prodinfo.asp?number=RA052007

I would go to the Holley tech service online or call to determine what size carb you have and replace with the same size.http://www.holley.com/TechService/

cmw
02-04-2012, 11:42 AM
Thanks thatsmrmastercrft. I did speak to SKIDIM and they said that was a single feed they sell. He said I could convert mine to a single feed, but a should change out the fuel pump so the fuel line would align better. I would also need to purchase brake line and a tube bender and it is difficult to get it right. I'm hoping for an easier way. I will take your advice and talk to Holley. Still not sure which number I am looking for. The number on the top of the carburetor body is 6R3385B, on the top choke plate 388 and on the secondary throttle plate 172.

I was hoping to find something to bolt on and go. I'm not sure how to pick the right jet to rejet and still not sure how to figure out the correct cfm.

I appreciate both of your time and posting the links. I will keep working on it and make some calls Monday. I will let you guys know how it goes.

thatsmrmastercraft
02-04-2012, 11:47 AM
Thanks thatsmrmastercrft. I did speak to SKIDIM and they said that was a single feed they sell. He said I could convert mine to a single feed, but a should change out the fuel pump so the fuel line would align better. I would also need to purchase brake line and a tube bender and it is difficult to get it right. I'm hoping for an easier way. I will take your advice and talk to Holley. Still not sure which number I am looking for. The number on the top of the carburetor body is 6R3385B, on the top choke plate 388 and on the secondary throttle plate 172.

I was hoping to find something to bolt on and go. I'm not sure how to pick the right jet to rejet and still not sure how to figure out the correct cfm.

I appreciate both of your time and posting the links. I will keep working on it and make some calls Monday. I will let you guys know how it goes.

The guys on the Holley tech line will have all the info you could ever use, and more. For converting to a single fuel line carb, there are
coast Guard approved braided stainless lines available that will get the job done for you.

National Carb claims their carbs are bolt on and go. Their tech guys are supposed to be good, though I have never dealt with them. Might be worth a call as they have a direct replacement carb.

CantRepeat
02-04-2012, 01:04 PM
The numbers are on the air horn.

http://www.junkyardgenius.com/holley/IMAGES/listlocation1.gif

http://www.ponycarburetors.com/images/location4.jpg

CantRepeat
02-04-2012, 01:08 PM
Great site on Holley carbs.

http://www.carbkitsource.com/carbs/tech/Holley/modular.html

Ron Grover
02-04-2012, 01:10 PM
I sent mine off to Holley for a re-build. It came back like brand new. They set the jets and all of the calibration. Took about 3-4 weeks but it was worth it to me and just as cheap as a rebuild by a shop.

cmw
02-10-2012, 03:12 PM
I appreciate everyone's help. I spoke to Holley and they suggested the 4160 single feed. I don't have the part number with me. I called the marina who services my work boat and he said "don't throw the baby out with the bath water". He feels the carburetor is still good, maybe the guy who rebuilt it had problems (me). I can get it to run, but it wants to die at idle. Hopefully it is a simple adjustment. I have never taken it to anybody for repairs since I can do most things myself, but for some reason this one has me stumped and most of all frustrated. I'm taking it to the shop in the morning. I think I am getting older and less patient. Wife wants a new boat after going to the boat show here in Atlanta, but I still love this old boat. Bought a piece of property across the street from Carters Lake for our trailer last week, so I am anxious to have the boat run right and do not want a boat payment. Thanks again, Chris P.S. I'll let you know what they find out. I owe you that.

Cloaked
02-10-2012, 04:02 PM
I appreciate everyone's help. I spoke to Holley and they suggested the 4160 single feed. I don't have the part number with me. I called the marina who services my work boat and he said "don't throw the baby out with the bath water". He feels the carburetor is still good, maybe the guy who rebuilt it had problems (me). I can get it to run, but it wants to die at idle. Hopefully it is a simple adjustment. I have never taken it to anybody for repairs since I can do most things myself, but for some reason this one has me stumped and most of all frustrated. I'm taking it to the shop in the morning. I think I am getting older and less patient. Wife wants a new boat after going to the boat show here in Atlanta, but I still love this old boat. Bought a piece of property across the street from Carters Lake for our trailer last week, so I am anxious to have the boat run right and do not want a boat payment. Thanks again, Chris P.S. I'll let you know what they find out. I owe you that.I like to think I am ambitious and frugal for most DIY things. After rebuilding the 4160s numerous times over the years, I agree with your decision on the new carb. You'll be best served with no issues. Just get the electronic choke set properly and you'll likely be good to go out-of-box.

.

johnlanguab
02-10-2012, 04:06 PM
Why is a 4160 superior to the 4150? Other than there are more of them...