HELP! Seafoam in RX7 now it runs like crap
10-28-04, 05:38 PM
#26
Originally Posted by The Spyder
Thats your problem. Was the car alteast warmed up to normal operating temp?
Heres a simple little test- Go start the car, take it for a drive, and look under it at the cat. I bet you it will be glowing red. Chances are since you dint have the car running at 3k+ when you fed it in, it dint combust the liquid completly until it hit the cat while carrying all the carbon and crap it just cleaned out and probably melted and clogged it pretty good.
Heres a simple little test- Go start the car, take it for a drive, and look under it at the cat. I bet you it will be glowing red. Chances are since you dint have the car running at 3k+ when you fed it in, it dint combust the liquid completly until it hit the cat while carrying all the carbon and crap it just cleaned out and probably melted and clogged it pretty good.
10-28-04, 06:54 PM
#28
Former Moderator. RIP Icemark.
Originally Posted by RockLobster
Engineer for 10 years(the kind that actually work on stuff and test). Water dosn't do squat. Steam only works at VERY high pressures, volumes, and temperatures in excess of boiling point, niether of which you will get by letting a vac hose suck it up (water at room temp).
Water works very very well in the rotary engine (which was designed to be a water pump intially anyway).
I could name a half dozen professional rotary engine rebuilders and professional rotary engine racers that all would have only positive proof that water worked very well to clean out a rotary engine.
Now for piston motors I agree... you could not get enough water into the engine through a vac line to do anything except waste the motor.
But I guess your engineering for 10 years didn't include much rotary engine experience.
10-28-04, 09:05 PM
#29
I have had rotary engines apart and I have seen the relative effects of both water and sea foam on carbon. I simply dissagree with what these people have perceved as results. Just because you have results B in a test dosnt mean it was due to input A. I belive there are other factors involved that were not correctly acconted for in these "experiences" as I have found the exact oposite. Do not presume to know experience I have or don't have.
10-28-04, 09:41 PM
#30
I didn't mean to sound obsinent. I admit I am not a “rotary expert” but I do have experience with them.
Further I have seen results and done calculations on the effects of steam in a number of different uses including many different types of cleaning. I question the methods anyone forming the conclusion that enough water run through a 3-4mm vacuum hose could have an appreciable effect mainly due to the lack of concentration and pressure of delivery. Of course it becomes superheated steam but I question the effectiveness at the concentration and method of delivery in question.
I said before it doesn’t do squat. That was more an exaggeration of my more serious opinion on the issue. I retract that statement in that I know it will have some effect but not nearly the effect that a chemical agent, designed specifically for this application, could have when employed in the manner we are discussing. (NOT ATF)
I respect everyone’s opinion and people all work with the experiences they have. I wasn’t trying to start a fight. I'm sure that that water may help a little but, in my opinion, sea foam is better.
Further I have seen results and done calculations on the effects of steam in a number of different uses including many different types of cleaning. I question the methods anyone forming the conclusion that enough water run through a 3-4mm vacuum hose could have an appreciable effect mainly due to the lack of concentration and pressure of delivery. Of course it becomes superheated steam but I question the effectiveness at the concentration and method of delivery in question.
I said before it doesn’t do squat. That was more an exaggeration of my more serious opinion on the issue. I retract that statement in that I know it will have some effect but not nearly the effect that a chemical agent, designed specifically for this application, could have when employed in the manner we are discussing. (NOT ATF)
I respect everyone’s opinion and people all work with the experiences they have. I wasn’t trying to start a fight. I'm sure that that water may help a little but, in my opinion, sea foam is better.
10-29-04, 12:41 AM
#31
my suggestion is rev the **** out of it, it likely is a blockage in the exhaust due to low RPMs, run it up near redline if you can for at at least 5 seconds, run it at about 3-6k pulses for about 30 seconds to 1 minute, if it doesn't clear up then it may not be able to burn off and your precat may need to be replaced assuming it is plugged exhaust.
snake oil...
i would also suggest staying away from the fumes if possible during these types of services even in open areas.
you need to remember that even though it has all gone through the intake there is usually valleys in the intake runners where the fluid likes to pool up and revving the engine is the only way to draw it through, i let engines idle during my FI services at the Cadillac dealer, often the engines die on their own so i will have to restart the engine then rev it up to clear out the runners of any pooled fluid. this process usually takes about 5 minutes or so then i drive it to clear out the rest and fully combust any residue in the combustion chambers, the last remains in the exhaust for a few days until it completely burns off.
if you are pussyfooting around and haven't tried to rev the engine to clear it out, i would suggest that before anything.
snake oil...
i would also suggest staying away from the fumes if possible during these types of services even in open areas.
you need to remember that even though it has all gone through the intake there is usually valleys in the intake runners where the fluid likes to pool up and revving the engine is the only way to draw it through, i let engines idle during my FI services at the Cadillac dealer, often the engines die on their own so i will have to restart the engine then rev it up to clear out the runners of any pooled fluid. this process usually takes about 5 minutes or so then i drive it to clear out the rest and fully combust any residue in the combustion chambers, the last remains in the exhaust for a few days until it completely burns off.
if you are pussyfooting around and haven't tried to rev the engine to clear it out, i would suggest that before anything.
Last edited by RotaryEvolution; 10-29-04 at 12:47 AM.
10-29-04, 10:57 AM
#32
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i dont really konw what seafoam is but if your putting it in your intake, then u it doesnt seem to me like u should put it in your crankcase, thats two entirely different deals therer
10-30-04, 02:41 AM
#34
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well the seafoam worked a bit too well. it got rid of all the carbon deposits which were holding my engine together
it probably got rid of the deposits on the apex seals which were making the engine run. now I have 0 compression in one rotar and 25 in the other!!
it probably got rid of the deposits on the apex seals which were making the engine run. now I have 0 compression in one rotar and 25 in the other!!
10-30-04, 04:43 AM
#36
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Originally Posted by uberphonix
well the seafoam worked a bit too well. it got rid of all the carbon deposits which were holding my engine together
it probably got rid of the deposits on the apex seals which were making the engine run. now I have 0 compression in one rotar and 25 in the other!!
it probably got rid of the deposits on the apex seals which were making the engine run. now I have 0 compression in one rotar and 25 in the other!!
carbon cant hold an engine together,.. if you had 0 and 25 compression the motor wouldnt start and definatly wouldnt idle.
I agree with the never put anything in your crankcase that goes in the intake, it will just thin the oil.
10-30-04, 08:42 AM
#37
Originally Posted by drago86
I agree with the never put anything in your crankcase that goes in the intake, it will just thin the oil.
Last edited by RockLobster; 10-30-04 at 08:48 AM.
10-30-04, 12:32 PM
#38
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there is nothing bad about seafoam its great if used correctly but not supposed to be in the crank case man only suppose to run it threw the intake
TwEaK
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11-01-04, 10:17 AM
#40
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sounds like something i might use on a running engine just before I rebuild it to lessen the cleaning process. Otherwise, its good old fashion oil changes, quanilty gas, and a redline here and there.
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