Procedure for setting idle on GT40
Printed From: CorrectCraftFan.com
Category: Repairs and Maintenance
Forum Name: Engine Repair
Forum Discription: Engine problems and solutions
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=47852
Printed Date: September-27-2024 at 3:21pm
Topic: Procedure for setting idle on GT40
Posted By: workky
Subject: Procedure for setting idle on GT40
Date Posted: August-01-2019 at 12:33am
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Anyone know the proper procedure to set the idle speed on the gt40? |
Replies:
Posted By: Gary S
Date Posted: August-01-2019 at 11:03am
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Could not find any reference to setting idle in any marine manual. But many times 5.0 Mustang guys have already done the work. Here is the procedure from the LMR web site might be worth a try- From Ford Performance: 1986-1995 Mustang Idle Setting Procedure Please Note: These steps MUST be performed in sequence!! 1- Get engine to operating temperature. 2- Disconnect IAC (Idle Air Control) Solenoid. If engine stalls, turn throttle-stop screw in one full turn and restart. Repeat as necessary until engine will idle with IAC unplugged. 3- Set idle using throttle stop. Idle speed will vary depending upon modifications made to the engine. Set to where you are comfortable with idle speed. 4- Set TPS (Throttle Position Sensor) anywhere from .96 to .98 volts. This is done by loosening the mounting screws, and lightly rotating TPS. If you cannot obtain the desired range, you may need to make the mounting holes slightly larger. This can be done by drilling them. 5- TPS wire colors to be probed are generally BLACK and GREEN wire or the GRAY/RED and GRAY/WHITE, depending on your vehicle. 6- Stop engine. Disconnect negative terminal battery cable for 15-20 minutes. You may wish to tap the brakes or turn the headlights on and off a few times as this will help to ensure that you have purged any remaining electrical current from the vehicle. 7- Reconnect IAC Solenoid 8- Reconnect battery cable to the negative terminal 9- Restart engine. ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=1711&sort=&pagenum=1&yrstart=1966&yrend=1970" rel="nofollow - 69 Mustang HM SS 95 Nautique Super Sport |
Posted By: workky
Date Posted: August-03-2019 at 1:28pm
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Thanks Gary, much appreciated. Had a moron who used the boat last week turn the screw becauae he thought he needed to speed it up.. |
Posted By: Canuck-Surfer
Date Posted: September-20-2020 at 1:04pm
Gary/Keno??
------------- 1996 Sport Nautique GT40 EFI |
Gary S wrote: