Daytona Big 97 carb help requested
Hi - I have been quiet for a long time, partly because of ill-health and partly because my car has been off the road for over two years. Sadly, I have heard that its previous owner, Duke Marley from NC, has died - he was an icon in the Hudson world.
I am trying to get it going again, and to this end I have bought a Daytona Big 97 2bbl carb, having read great things about them and terrible things about the stock Carter ones. I fitted it to the car, and to begin with the transformation was startling - it started immediately (the other one used to take about 10 minutes of churning), and it revs almost like a racecar with no flywheel - amazing difference.
However, there is a drawback! It will rev when not under load and it revs quickly and cleanly, but as soon as I try to drive away it bogs down and stops. There is a very shallow hill out of my garage, and it can't get up it! And there is a huge 'flat spot' between idle and full revs. I have tried everything I know, which is not much (basically checking for vacuum leaks and moving the distributor between its two extremes), but it makes no difference. My question is, has anyone else got this carb and had the same problem - or even better, has anyone else got this carb and solved this problem?
.
Comments
-
I don’t know anything about those carburetors, but all carburetors need to have all of their passageways fully clear even though that might be a new carburetor. It might have some packing debris or from when it was manufactured that would be my first step is to make sure all passageways For air fuel and whatever or 100% clear and then also double check your float level settings.
0 -
Thanks. However, it is brand new in box, and they come sealed and pre-adjusted and you aren't supposed to do anything to them. It is possible that it may have some debris inside from manufacturing, but I would have thought it was unlikely (it is beautifully made). Unfortunately I can't return it to be checked, because I am in France and the shipping and customs costs to and from Florida would be huge!
0 -
This my seam strange but yiu may want to take your carb apart and check to make sure there is no gasket covering a passageway inside the carb all it takes is a small piece of gasket that was not cut right from the factory and you will have problems I know because I have seen this many times in my years of working on cars be thankffull it is not a head gasket they are even worse if you are not watching what you are doing.
0 -
Hi again I thought about you a lot last night so today I went back and reread your post I am a little rusty at this because it has been a long thie sence I have worked on carb problems first of all you said the car sat for two years but you do not say why you put a new carb on it in the first place at this point it sounds to me like your carb is starving for fuel this may be because of a flot setting in the carb but I think the first place you should be checking is all of your fues lines from the tank forward all steel and rubber lines ( old rubber lines can break down and cause a blockage of the fuel) check all steel lines for kinks ol dents that cause fuel blockage also make sure your fuel tank pickup tube is clearand most of all check your fuel pump the make sure it is pumping the right amount of fuel if you have the old rubber parts in your fuel pump the gas they are selling now days will eat up the rubber in your pump they sell rebuiold kits for your pump so this will not happen I hop some of this will help you HAPPY MOTORING Tom,
0 -
Have you checked the Stromberg Tech Centre | Stromberg for info? Being a universal carb, it will likely require further tuning to get it running well on your particular engine.
0 -
Thanks. The car sat for two years because ever since I have had it it has had a problem where it will start OK (after a bit of churning), will run for an hour or so (maybe less on a hot day) or until I come to a steep hill, and then it stops, with the symptoms of fuel starvation. It doesn't feel like vaporisation (I have had that before), but it simply will not start. Before I bought it in 2006 Duke Marley had replaced the tank, so it has a lovely clean tank. Since then I have replaced the fuel pump (now an electric ethanol-proof one), the points, distributor cap, all fuel lines, filters, condenser, plug leads, battery (not an Optima), coil, and engine (twice). And yet whatever I do the problem is the same. It is definitely not the pump or the rubber in the lines, because the pump is ethanol-compliant and so are all the rubber pipes (although most of the lines are metal). Last time I drove it, two years ago, it did it again, and the guys in my local club had a look while I was broken down at the side of the road and removed the top of the carb and could see that although fuel was getting to the carb it was dry inside. As it is the original Carter and they get a bad rap, I decided to replace it with the Daytona/Stromberg one, which doesn't get a bad rap! It is so much better at starting now (almost instant), and revs much quicker under load, that I am pretty convinced that we have (at last) found the problem, but that (as you and others say), some tuning is necessary.
0 -
No I haven't, and I really appreciate the pointer and will do so now! Ron at Daytona carbs has been very helpful in trying to help me solve the problem, but at 4000 miles distance it is tough! So the more help I can get the better! Thanks again very much for this very helpful link!
0 -
The trouble with that is that I am very reluctant to do that because the literature that comes with it comes with very stern warnings not to take it to bits or in any way mess with it, because it comes pre-adjusted and is not supposed to be adjusted or messed with by the user except via the two external adjustment screws. And yes, I am glad it is not a head gasket too - I have got to do one of those on another of my cars, and I am not looking forward to it!
0 -
If it were my problem I’d disconnect the fuel line at the carb and crank it over and see how much fuel comes out. I’d then put a fuel pressure gauge on to observe the fuel pressure. Check that against carb manufacturer specks. It’s possible your said new fuel pumps cam arm may be to short or to long.
0 -
I've replied privately to Sidevalve who's a very old friend of mine but I'll just pass on to the Forum the advice I got from another friend who used to run a restoration shop for vintage Rolls Royce and Bentley engines and that applied to my Daytona Universal carb ; tune it accurately as per Daytona's instructions at the right revs. A cheap laser rev counter (made in China but what the heck ?) is ideal for this. I guess that applies to tuning whatever carb it is.
0 -
I’ve never had any problems w the original Carter carbs, whether it’s my twin-h or past 2bbls. I have used the AMC 258 Concorde fuel pumps on several big sizes w out any issues. If it were my Daytona carb, Id pull it apart and have a look, could be something simple inside. I also agree with checking your fuel pressure at the carb inlet
0
Categories
- 36.9K All Categories
- 102 Hudson 1916 - 1929
- 15 Upcoming Events
- 89 Essex Super 6
- 28.5K HUDSON
- 547 "How To" - Skills, mechanical and other wise
- 992 Street Rods
- 150 American Motors
- 172 The Flathead Forum
- 49 Manuals, etc,.
- 73 Hudson 8
- 43 FORUM - Instructions and Tips on using the forum
- 2.8K CLASSIFIEDS
- 597 Vehicles
- 2.1K Parts & Pieces
- 77 Literature & Memorabilia
- Hudson 1916 - 1929 Yahoo Groups Archived Photos