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| engine problem with 2.3 ford powered 170 freedom https://www.smwebhead.com/phpBB3/viewtopic.php?f=11&t=3167 |
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| Author: | Red Pearl [ Sun Apr 05, 2009 10:43 am ] |
| Post subject: | engine problem with 2.3 ford powered 170 freedom |
HI, I have a four Winns speedboat with a ford 2.3 engine, it free revs fine however most of the time when I am running it on water as I rev it gets faster then reaches a point where it seems to loose power and die a little rather than speeding along. do you have any idea what's wrong? |
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| Author: | St. Louis Dave [ Sun Apr 05, 2009 1:37 pm ] |
| Post subject: | Re: engine problem with 2.3 ford powered 170 freedom |
SOunds like a fuel filter or bad gas issue to me. |
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| Author: | Rob [ Mon Apr 06, 2009 8:43 am ] |
| Post subject: | Re: engine problem with 2.3 ford powered 170 freedom |
Most likely fuel filter/ fuel starvation. Could also be running lean on the high end. Can cause similar issues. |
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| Author: | 07H200SS [ Mon Apr 06, 2009 10:01 am ] |
| Post subject: | Re: engine problem with 2.3 ford powered 170 freedom |
I agree it sounds like a fuel issue. Starvation most likey. Start with the fuel filter and see where it goes. If problem persists might be a carb issue. |
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| Author: | Red Pearl [ Tue Apr 07, 2009 2:48 am ] |
| Post subject: | Re: engine problem with 2.3 ford powered 170 freedom |
Hi guy's and thank you for your replies, I have been told locally that its a heavy boat and with four people on board and a full tank of gas it will struggle to get "on plane" and that i need to have the trim up to get the nose in the air then as it speeds up i should then lower the tilt. This is something i have not had to do with my previous boat does it sound right? |
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| Author: | Graham R [ Tue Apr 07, 2009 4:38 am ] |
| Post subject: | Re: engine problem with 2.3 ford powered 170 freedom |
Sounds the opposite to normal ! Usually, it's best to trim the drive in to push the bow down to get it on the plane (plus deploy trim tabs to help this, if the boat is fitted with them). Also, to get as much weight as far forward as reasonably possible ( without a risk of people falling off !). Graham |
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| Author: | St. Louis Dave [ Tue Apr 07, 2009 8:06 am ] |
| Post subject: | Re: engine problem with 2.3 ford powered 170 freedom |
I agree with graham. If you are trying to plane with your drive trimmed out, you'll find the other side of the lake before you get on plane. Try trimming all the way down and see how it goes. You still sound like you have a fuel issue. |
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| Author: | Red Pearl [ Thu Apr 16, 2009 8:21 am ] |
| Post subject: | Re: engine problem with 2.3 ford powered 170 freedom |
hi guys i have videoed what my problem is, if i accelerate suddenly the engine revs seem to die, however if i increase the revs slowly it gets on plane fine. this was done with just me on the boat rather than 5 of us, where it wouldn't go up on plane at all. any ideas and suggestions would be greatly received, the video link is below. http://www.youtube.com/watch?gl=GB&v=kBRK5OtP68U Regards |
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| Author: | St. Louis Dave [ Thu Apr 16, 2009 8:42 am ] |
| Post subject: | Re: engine problem with 2.3 ford powered 170 freedom |
It sill looks/sounds like a fuel issue. Check to see if all of your vacum lines are attached. Look at your fuel filter. Run some dry gas/carb cleaner. |
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| Author: | Graham R [ Thu Apr 16, 2009 9:48 am ] |
| Post subject: | Re: engine problem with 2.3 ford powered 170 freedom |
Is this the 2.3 "Pinto" 4 cylinder OHC engine with a Weber twinchoke carb? Could it be overfuelling or undefuelling due to the carb? If it's the same type of carb fitted to European 1.6 and 2.0 versions of the same engine, there is no vacuum control over the secondary throttle butterfly, it's purely mechanical. With full throttle, both butterflies are fully open. There is also an internal vacuum type actuator operating the "power jet" that sits in the bottom of the float chamber which controls the quantity of fuel available to the main jets ( I think it's called that, I'm going back over 30 years here!). There would be a lot of air going in, but maybe not enough or an incorrect level of fuel if there is a problem on the secondary side or the power jet ( there are actuall a pair of "idle" jets that cover the transition from idle to moderate RPM, and a pair of main jets that kick in later. Plus air corrector tubes) Perhaps using partial throttle ( = primary butterfly and jets only ) allows it to reach moderate RPM, then it can cope with the problem on the secondary side when the throttle is then opened further. If it's not the same engine or type of carb, ignore me completely! Graham |
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| Author: | Red Pearl [ Wed May 27, 2009 3:28 am ] |
| Post subject: | Re: engine problem with 2.3 ford powered 170 freedom |
thanks Graham, great info however not a Webber carb. I changed the fuel filter cleaned the air filter and put some octane booster in the tank and topped off with 98 Ron fuel. it has improved considerably and I am running the fuel down as much as I can with a view to having a full tank of Ron 98 fuel. Given I am running this boat on the sea and its not the smoothest conditions and with four people it takes a little to get on plane and I have used my GPS to work out top speed which came out at 33 miles an hour, is this the correct speed for a 2.3 170 freedom. |
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| Author: | DaleG [ Wed May 27, 2009 8:53 am ] |
| Post subject: | Re: engine problem with 2.3 ford powered 170 freedom |
I couldn't find your exact boat -- but my guess is that is should be faster. Go to the Four Winns site and look at PAST PRODUCT INFO -- you should be able to find your boat and engine. Tables there will give fuel consumption and speed at various RPM -- Good luck |
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| Author: | Aussie_Horizon_190 [ Wed May 27, 2009 8:47 pm ] |
| Post subject: | Re: engine problem with 2.3 ford powered 170 freedom |
From the video, it seems like the accelerator pump on the carb is not working. Definately fuel / carb related whatever it is. |
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| Author: | LouC [ Wed May 27, 2009 9:05 pm ] |
| Post subject: | Re: engine problem with 2.3 ford powered 170 freedom |
According to my 88 OMC shop manual...the 2.3 Ford (yep it's the same engine used in thousands of Mustangs, Capris and Ford Ranger pick ups) used a Rochester 2 bbl in this application...it does have an accelerator pump and this may be the likely cause of your problem..but on a boat that age it's probably best to have the carb disassembled, cleaned thoroughly and rebuilt with all new gaskets and then set up correctly....my Quadra Jet needed to be cleaned and rebuild, along with the anti siphon valve needing to be replaced..that corrected an even worse running problem than you had in your vid (mine wouldn't even get up on plane). That was 5 seasons ago...been running great ever since..and if you don't have a nice 10 micron water seperating filter I'd think about adding one... |
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| Author: | Rob [ Thu May 28, 2009 10:21 am ] |
| Post subject: | Re: engine problem with 2.3 ford powered 170 freedom |
Could this be as simple as adjusting the mixture? Rich/lean? |
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