surging issue

wellcraftv20step · #1 07-23-2018, 11:45 AM

hey all, after getting a reluctant clearance from my surgeon im getting ready to splash the Deplorables. she has been running great in my boat driveway the 3 or 4 times I ran her over the last few months, but when I went out to just start her before splashing she is now surging when I bring her up from idle. I decided to give a look at the vst filter and oxygen sensor. the vst filter looks good to me , very good actually. the o2 sensor looks good as well, installed new water fuel separator too . I for the life of me cant believe the price of the vst filter ! Anyway , what else should I be looking for

phatdaddy · #2 07-23-2018, 05:01 PM

How long has the fuel been sitting in the boat

wellcraftv20step · #3 07-23-2018, 07:28 PM

Fuel has been in since I brought her home from the slip in December . I was afraid someone was going to ask a fuel question !!

wellcraftv20step · #4 08-16-2018, 03:14 AM

I'll be running the motor off a different /fresh supply of fuel this weekend just to eliminate that as the cause . I have a feeling that I'll just have the same results with the surging . I've noticed that the rpms at idle have gone from its normal 600/700 when warmed up to 900/1000, seems as though the motor is compensating some how. Going to look toward fuel injectors after that .

Genie Aye · #5 08-24-2018, 01:56 PM

If you think it is injectors...run a bottle of Redline SI1...if it clears up afterwards, you had dirty injectors, if you still have the same issue...its not the injectors most likely.

wellcraftv20step · #6 08-24-2018, 07:40 PM

As I mentioned a week ago I tried running her on a fresh outboard tank and had the very same issue. So I pulled the injectors and msent Them out. Got them back today and now she's purring like a kitten again ! As Phil Robertson would say, Happy Happy Happy !

wellcraftv20step · #7 08-28-2018, 03:23 PM

This may sound like a silly question but does anyone know if the cowling gasket is supposed to remain on the top or bottom cowling. And should it be affixed as mine falls off every time I remove the cowling . It always sticks to the top cowling but just before I set it on the deck the gasket falls off, drives me nuts. I'm going to get some kind of automotive weatherstripping epoxy and set it in that I think..

Destroyer · #8 08-29-2018, 01:03 AM

Quote:

Originally Posted by wellcraftv20step

This may sound like a silly question but does anyone know if the cowling gasket is supposed to remain on the top or bottom cowling. And should it be affixed as mine falls off every time I remove the cowling . It always sticks to the top cowling but just before I set it on the deck the gasket falls off, drives me nuts. I'm going to get some kind of automotive weatherstripping epoxy and set it in that I think..

John, rather than epoxy which will make removing it almost impossible if you want to replace it, I'd use RTV Silicone seal, or pretty much any silicone sealant. That way if you need to replace the gasket at a later date it's a fairly easy removal. With Epoxy that sets hard removal is going to be a nightmare.

SkunkBoat · #9 08-29-2018, 09:59 AM

Quote:

Originally Posted by wellcraftv20step

This may sound like a silly question but does anyone know if the cowling gasket is supposed to remain on the top or bottom cowling. And should it be affixed as mine falls off every time I remove the cowling . It always sticks to the top cowling but just before I set it on the deck the gasket falls off, drives me nuts. I'm going to get some kind of automotive weatherstripping epoxy and set it in that I think..

Supposed to be on the top cowling. I got a new one on Boats.net for $50-$60.

wellcraftv20step · #10 08-29-2018, 06:40 PM

Makes sense skunk, it would be awkward on the bottom cowl. Paul I was just going to apply it to certain points I wasn't going to go all around for that reason. But your rite silicone would be best ! Thanks men.