Not Sure what to make of this problem?

So i checked compression an it looks fine 160-180 on all three.

Since i had to remove the pluggs to check the compression i noticed one of the pluggs was in really bad shape.

I replaced all 3 plugs....and now i got power back!!!!

After that I dumped a whole can of Sea foam just for good measure.

I dont think the sea foam did anything...but the new pluggs did the trick.

Should i replace the cap, rotor and wires too while im at it?

I still get pretty bad gas milage...but thats another issue.....anyone have any ideas for that?

Maybe if i keep using 93 octane gas and sea foam it will eventually clean things up and ill get better milage?

 

So glad to hear you got power back !
I guess on a 3 banger, 1 bad plug = over 30% problem.

I would keep an eye on the cylinder that had the bag plug.

Did you read other posts about seafoam?
From everything I have read....
1/3 in the tank
1/3 in the crankcase
1/3 in a vacuum line to the carb
stall it out
let it sit for a while

then fire it up and drive for a while
then change the oil

I have also read that it can be pretty strong stuff
so I think that after the treatment
I would only run it as a fuel treatment / maintenance
Not everywhere

Watch for oil leaks

The theory goes....
Yes it may clean out the gunk
But sometimes the gunk (build up)
Can be keeping seals and stuff from leaking

On some high miler's - the gunk
Is the only thing holding the engine together
That's a bit of an exaggeration from the mechanics I know
But there is a lot of truth to it

I have not tried it on my little truck yet...
But on all my regular size older trucks
I have always seemed to have good luck with Lucas Oil Treatments

I have really liked their fuel treatment
It seems to really smooth it out

BTW
It NEVER hurts to replace a cap and rotor

 

Well maybe I did the sea foam wrong then. I unhooked the fuel filter.....and put the hose that normally sucks in the gas after fuel filter into the bottle of sea foam and let it suck up the entire can of sea foam.

Then i put the fuel filter back on......and let it run idle for 10 minutes...then drove it around for 10-15 minutes.

Parked it in the garage last night.....

tried to start it this morning and it seemed to start fine.

Can i screw up the car with what i just did? do i need to keep driving it to let the sea foam work thru the system?

B.T.W the car did not smoke much as the sea foam was being sucked in.....i was expecting alot of smoke.....

DO I NEED TO CHANGE THE OIL ?

 

You will have to do more digging on this site and google
I am only relaying what I remember reading

I am sure you did not hurt anything though

Putting it in the tank 1st should clean out deposits from the tank to the carb
I would guess one may want to change the filter again after that to be safe

putting it in the crankcase
will obviously clean deposits there
again the oil change should take the garbage out with it

the part about putting it in a vacuum line and stalling it out
seems to be to get the insides of the carb coated
then let it sit to clean out crap

but i think you are only supposed to let it sit for a short tiime
like 20 or 30 min

you don't want to destroy seals and stuff

but there is a ton of info out there

i thought it was supposed to smoke too

I would do the oil change if you put it in the crankcase after driving around for a while
again, check google

 

If you are going to do cap and rotor you should do wires too. The wires were my problem in the rain.

 

yep just ordered a cap and rotors and wires.....mine as well do it all while im at it.

What would you say top speed should be on a 550CC suzuki like mine?

I'm only getting up to 45MPH....which is ok because all the roads near me have that kind of speed limit (except for the express way)

I could probably go a bit faster ...but i usually hit a red light and need to slow down.

 

anyone using Lucas oil treatment please check this out...I know many mechanics who swear Lucas destroys engines and diffs...this site is pretty much proof.
http://www.bobistheoilguy.com/images/lucas/lucas.htm

 

OUCH!!!
Thanks for that!!

Now I am scared!

At the moment I think there is only some in my big ol e 350

Good thing its time for an oil change for ALL the trucks.

I need to read MORE of that site.

OK
retraction
DON'T USE LUCAS OIL

My uncle runs 50% 10w30 and 50% 80/90 gear oil in his crank case on his old nissan pickup
( I think THAT would be the GUNK holding it together )

Thanks Fupa

 

NP that aeration is scary in the gearbox...air isn't a great lubricant...

I'd say you should be able to hit 80kph ..can't say for sure

 

Only change it if you put some in the crankcase ..Some say you don't need to change the oil...I do just to be safe...I used a whole can in the crankcase of my Volvo when I had a sticky lifter earlier this year...Idled it for 15mins and revved to 2500 a couple times then changed oil and filter...the oil was black when it came out even though it was honey coloured on the dipstick prior to the seafoam....I would say for the peace of mind I would change it...
the way you sucked in the seafoam is great for the fuel system,will clean it and the carb very well,,you didn't get much smoke because the seafoam wasn't added on top of the fuel (that's fine though ..I'm sure your fuel lines and carb are good and clean)

 

I have had mine up to 115 kph on the 12 in wheels
3 spd automatic

have not tried it with my 13's yet

 

Did you see this posting ?
http://www.minitrucktalk.com/showthread.php?t=6455
It sounds so much like your problem.

 

My issue was a bad spark plugg.

i got all my power back after i replaced all the plugs........

but not i have a different issue....looks like my gas tank has a very small slow leak...and i messed up up the fule gage somehow when i tried to paint the tank....anyone know how that is suppose to work?

how can i get my fuel gage to show how much gas is in my truck.

did i paint over something i should not have?

 

and i took it on the expressway last night....got it up to 55MPH

thats pretty much top speed for my 550CC Suzuki.

Took me a while to get up to that speed....but it made it.

My dash only goes up to 100KMH

so all is well now.....just need a new muffler and take care of the small fuel leak

 

sounds like some paint worked its way into an electrical connector....I would unplug all the connectors that got painted and sand em down coat in dielectric grease and plug them back in