PA.WOODCHUCK

Before retiring the dealership used BG-K44 and was the only product approved and covered as warranty for injector issues. They all claim to work such as techron, quick-clean, seafoam, and many more. An engine with NO running issues... what's proven to work?

speicher lane

"BUP" on here (Screen name) has many threads on this topic

long story short, bench flow test is the only true-fire method of cleaning...a lot of people use the products listed but they can also loosen the particulates (Tank through to injector pintles) and really do a number as it clogs up everything..

BUP

iTrader: (9)

I would have a story book to write here but Ill make it as short as possible.

For one how do you change the basket filters if the injectors are never pulled out - and at times the basket filter are dry rotted so they are not filtering anymore and cause huge poorly performing injectors and flow volumes. Restrictions. What a way to run lean.

How does one change out the sealing orings because they can dry out as well over time and cause fuel leaks and or vacuum leaks inwhich cause stumbles and poor idling with hesitation for accelerating. for a jist of info about all that end.

Did one know that a good injector service is cheaper than a carb cleaning and rebuild KEEP in mind both are fuel delivery items carb and injectors

next how does one get rid of the internal fuel pump wear that collects in the injectors -- that material is brass / bronze / alumium and other metals depending on the fuel pumps -- how does one dissolve that with a cleaner ???

How does one get rid of the internal rubber fuel line that deteriorates over time and collects in the injectors and its filters ? Not many boaters ever change that rubber fuel line from the gas tank to the engine side ---- they break down over time. Just like any rubber product, it never lasts forever especially living in a enclosed engine compartment --- think about it, the fuel line has fuel sitting it for 365 days every year so how long does that last. Plus some rubber fuel lines have a inner liner that breaks away. causing running issues that all collects in the injectors . How does one dissolve that by spraying a cleaning solution thru the fuel system ?

Keep in mind the injectors are the end of the line for the all the fuel so all the junk and crap ends up in there at some point and time. And at times cleaners can make it worse by lifting off fuel vanish / stripping internal paint / whatever else that's in the fuel system.

How does one watch spray patterns and spray patterns are extremely important as well for proper fuel atomization - how does one check injector flow volumes and balance of the flow volumes ? Balanced flow volume and the correct flow volumes are so very important. Anyways see where I am coming from --- ONE can not know whats right and wrong when can not see any results. Marine engines are the worst on fuel injectors, ask anyone in that business. I surely can attest to that statement everyday. Just some examples at some point and time the injectors have to come out for testing and examined. Most cleaners are a form of alcohol base anyways.

BUP

iTrader: (9)

Forgot one thing as well INJECTORS have the electrical side to them as well that needs to be tested on top of ...Also injectors NEED to seal against fuel leaking as well so do they drip fuel upon start up and or drip fuel just after engine shut off ??

With that said heavy cleaners might be the issue as to why injectors leak - It works both ways for cleaners --- why because cleaners can strip away contaminants in which can cause the pintle to NOT CLOSE against its seat that has lodged. A great example of this is apps with the carter cool fuel cell and the Merc gen 3 cool fuel cell. The internal paint is stripped away faster and in bigger chunks. So much testing involved for next to nothing in price to have injectors serviced..

.
. And of course its up to the owner of the boat how well do they want to really maintain their boat and engines.

oconnor marine

we now use techron concentrate. It works very well. It wont fix old fuel lines or replace a defective or damaged injector, but it will dissolve particulate and gum and varnish. It absolutely helps improve idle, acceleration and start ups. And of course make sure you run small micron fuel filter.
if you are having issues that makes you think injectors are DIRTY try this. Get a new 10 micron fuel water separator filter for each motor. Then fill 1/2 TECHRON concentrate and 1/2 gas. Start motor and run for 5 mins. I recommend also treat the tank with it periodically. ALSO Keep stabil in fuel at all times.
THIS IS GOOD AND FREE ADVICE👍

Tinkerer

I only use Techron. I double dose at least once a year.
was told by a few mechanics that Techron was the only one that worked.

BUP

iTrader: (9)

No one thinks about that end as cleaners work both ways. To make a point about that - double dose the cleaners in your gas tanks or fuel cells for all Merc gen 3 cool fuels and the Carter cool fuel cells, Then see how much faster one will strip away the internal paint and really cause havoc along with leaking injectors or very restricted injectors from all that paint you help stripped away.

Also you do know that a lot of the fuel rails and the dampers get corroded internally - cleaners will help lift that rust off not dissolving it. Ill show a few pics how bad they become internally. Most cleaners are a form of alcohol base anyways and snake oils.

Tractionless

How's about Startron instead of Stabil? IN addition I use non-ethanol fuel anyway.

oconnor marine

starton is awesome

BUP

iTrader: (9)

A oil base is your best fuel additive one can use for marine apps. Why do you think all marine manu s have SB s about laying up their engines in a 2 stroke oil mix with fresh gas. Most are claiming if your boat sits for more than 2 weeks

The best fuel add off the shelf is by CRC bar none for marine apps especially saltwater apps..

An oil base add --- cuts down on fuel pump wear and can keep corrosion at bay plus lubes all moving fuel system parts. . As the fuel evaporates over time the oil base does not. It leaves a protective coating. And the oil base add cuts the fuel evaporation in half.