Go Back   TeamTalk > Maintenance Tips, How-tos and Refurbishing Topics > Engine / Drive Train

Reply
 
Thread Tools Display Modes
  #1  
Old 04-27-2013, 04:32 PM
92 190 PS's Avatar
92 190 PS 92 190 PS is offline
TT Enthusiast
 
Join Date: Apr 2006
Boat: 2008 197
Location: Southwestern Ohio
Posts: 423
92 Prostar 190 with 351 running rough question

92 Prostar with a 351 HO that I'm getting out for the first time this spring. Worked on it yesterday changing fluids and running in driveway and everything was great. Ran it for 15 minutes or so to get it up to temperature and again when I was done and everything worked well.

Today before changing plugs and doing a couple more finishing touches it is not running well. Starts quickly and runs as long as you give it gas. If you try to hold any RPM or idle it won't stay running. Pulled the fuel filter in the tank (On the end of the fuel line) and cleaned it. Changed the plugs and still no progress.

Looking for the next things I should check?
__________________
2008 Prostar 197
Reply With Quote
  #2  
Old 04-27-2013, 06:28 PM
93Prostar190's Avatar
93Prostar190 93Prostar190 is offline
MC Devotee
 
Join Date: Apr 2005
Boat: 2008 Prostar 214, MCX, Mini-Tower
Location: Central OH
Posts: 1,337
Still running the original mechanical fuel pump?

Maybe the diaphragm let go ...... Any exhaust details? Whitish smoke?
__________________
Keep a tight line, and a smile on your face. Peace out.
2008 Prostar 214 MCX
Previous 93 Prostar 190 1.5:1 GT40

"Left Foot Forward and preferring girls."
Reply With Quote
  #3  
Old 04-27-2013, 09:44 PM
92 190 PS's Avatar
92 190 PS 92 190 PS is offline
TT Enthusiast
 
Join Date: Apr 2006
Boat: 2008 197
Location: Southwestern Ohio
Posts: 423
Yes still the original fuel pump. Any simple way to check the diaphragm?

As for smoke, don't notice anything out of the ordinary.
__________________
2008 Prostar 197
Reply With Quote
  #4  
Old 04-27-2013, 11:15 PM
thatsmrmastercraft's Avatar
thatsmrmastercraft thatsmrmastercraft is online now
MC Master Poster
 
Join Date: Sep 2008
Boat: 1977 Stars & Stripes
Location: St. Paul, MN
Posts: 13,904
Start with the basics:

New plugs are good....gapped correctly?
Points or electronic ignition?
What is the age and condition of the distributor cap and rotor?
Same goes for the spark plug wires.
What is the idle speed set at?
Is your electric choke fully open after about a minute?
How much old fuel in the tank and was it treated when you winterized?
Is timing correct?
Has the carb ever been rebuilt? Is it a 4160 or a 4010?

Once you get through that, I would look for a vacuum leak. Spray carb cleaner around the base of the carb with the engine running (use caution here as it's flammable). If your engine speeds up with the carb cleaner, you found your leak.

That should keep you busy for a while
__________________
Peter

Tandem Axle Trailer Special
Includes: 4 T07 wheels, 4 ST205/75R14 Kenda
Loadstar KR03 Radial tires, mount and balance
Free Delivery


ALUMINUM WHEEL AND TIRE PACKAGES
SINGLE AXLE 14" PACKAGE STARTING AT $369
SINGLE AXLE 15" PACKAGE STARTING AT $439
TANDEM AXLE 14" PACKAGE STARTING AT $649
LED lights, Spare Tire Carriers, Chrome & Powder Coated Lug Nuts
GOLF CART TIRES & WHEELS

PM me or email tiresplease@gmail.com
Reply With Quote
  #5  
Old 04-28-2013, 12:03 PM
Kyle's Avatar
Kyle Kyle is offline
MC Maniac
 
Join Date: Jan 2007
Boat: 93 Prostar 190
Location: Fort Worth, TEXAS
Posts: 3,091
.........
__________________
Rollin' Gangsta Style

Quote:
Originally Posted by Thrall View Post
"Heavy" beer is for wine drinkers that are too embarrassed to drink wine in front of their buddies. "Light" beer is a drinkin' man's beer!
Quote:
Originally Posted by thatsmrmastercraft View Post
If you want bling like the big dawgs, ya gotta lift your leg a little higher.....
Reply With Quote
  #6  
Old 04-29-2013, 08:49 AM
92 190 PS's Avatar
92 190 PS 92 190 PS is offline
TT Enthusiast
 
Join Date: Apr 2006
Boat: 2008 197
Location: Southwestern Ohio
Posts: 423
Just an update for anyone that has similar issues in the future.

Pulled the fuel filter out of the bowl on the fuel pump and replaced it. Pulled the two inlet tubes off the carb and flushed them. Sprayed some carb cleaner in through the carb a couple of times.

Re installed everything and now the boat runs great again. Guessing there was some dirt in the lines somewhere. Hoping to run the fuel I have in the boat ASAP and start with a fresh tank for spring.
__________________
2008 Prostar 197
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


All times are GMT -4. The time now is 04:09 AM.