Quadrajet junked, are Mercarb's any good?

[saltwater_cowboy]

Got a mercruiser 5.0 in a small british ski boat. After stripping, cleaning and rebuilding the standard quadrajet it still runs poor. No acceleration and lumpy with poor starting.<br /><br />So I think the carb is junk.<br /><br />(timing is good, new cap, arm and leads etc)<br /><br />Been offered an as new mercarb 2 barrel which is cheap.<br />I guess power will be down a little with this as its only 2 barrel but thats not an issue really. Just want it smooth and running well.<br /><br />Is the mercarb suitable for the 5.0? Will it match up with my inlet manifold? I've been told the carb is for 5.0 or 5.7 engines I just don't know if the manifolds are different from what I have now.<br /><br />Any help?

 

[Don S]

Re: Quadrajet junked, are Mercarb's any good?

The QJet is a 4bbl carb and the Mercarb is a 2bbl carb, you could almost set the Mercarb in the intake hole of the Qjet.<br />You would need to replace the manifold, and probably part of the linkage.<br />There are a lot of the Mercarbs out there, especially from the 4 and 6 cylinder engines, if you don't have one for a 5.0 or a 5.7L engine it won't work.

 

[Laddies]

Re: Quadrajet junked, are Mercarb's any good?

You would have to know the part number of the carb mercury built a couple differant models, the Eledbrock, is my chose

 

[saltwater_cowboy]

Re: Quadrajet junked, are Mercarb's any good?

This is the carb I was thinking of getting.<br /><br /> http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=4553972274&rd=1&sspagename=STRK:MEWA:IT&rd=1 <br /><br />Its just being in the UK decent carbs are hold to get hold of.

 

[Laddies]

Re: Quadrajet junked, are Mercarb's any good?

The carb you need is part number 3310-807312A1 it was only used 2 years, hope this helps