grinder

Right then peeps

i have a 1988 N/A RX7 2nd with about 114K on the clock with no sign of a rebuild

i have been thinking of running some REDEX thru it ( its a carb cleaner , injector cleaner , carbon cleaner ) etc...

will it do anything - or will it blow the engine ?

Any idea's on this

thanks

stu

Crybabii

Stu I just bought the Redex injector cleaner as well ( the red liquid one) its works well on my FD today so I dont think it would do any harm..

Defcon9

I had some reps in when I was working for honda. They were from BG, same things injector cleaners etc. The recomendations from them were if it is Turbo DO NOT USE ANY THING!!! The cleaners can damage the turbo when it is sprayed through the intake and when it passes through the turbo it will take away the oil lubricating it and damage it.

That being said as far as a non turbo version it should be okay.

Crybabii - might not want to use it again, that could be a very costly mistake.

If it is sprayed through the fuel system (fuel additive) it should be okay as it by-passes the turbo system.

t24todd

iTrader: (7)

i would never use it...maybe on a pistonenginebut never a rotoary...the carbon deposits help seal up an old engine from its flaws..if you want to help restore some powere than do it the right way with full tune up..air filter/oil/oil filter/collant flush/tranny flush/diff flush not some shitty additive that "restores power"..same scam as the octane boosters. basically im pointing dont use it because it will at least take out of the carbon leaving old tired apex seals to break. save your money do full tune up

Aaron Cake

iTrader: (1)

All additives are crap. Waste of time and money. Return it to the store for a full refund.

Evil Aviator

^
If you want extra detergents, just use Top Tier gasoline.
http://www.toptiergas.com/retailers.html

If you insist on throwing away your money for nothing, then just give it to me.

Defcon9

Oh god, top tier? The beauty of Shell Gas. Top tier. The only gas on the market to not once but twice have waaaayyyy to much sulphur in it and blow fuel pumps. It's amazing what spending money and providing sponsor ships can get you. Top tier means nothing imho.

As for all additives being garbage. That depends on how you look at it. Maybe on the rotary, I don't know, I've never tested them. On a tired piston engine with a little blow by Lucas oil stabalizer has really helped save a lot of engines. When I worked at Honda we used it quite a few times. Our mechanics would use it on their own cars, especially the preludes that were famous for burning oil and if was amazing. We also had some of the flushes that were fed into the intake to clean carbon deposits, not an additive it was sprayed through the intake (hence why you can't put it through a turbo) it made a big power difference on old cars.

Now again Rotary I'm not as familier with, but I would agree with t24todd, the rotary engine will most likely hate all that stuff. Wide open throttle every once in a while is good for these engines and help keep them as clean as they want to be.

Aaron Cake

iTrader: (1)

They thicken the oil at the expense of lubrication. The result is that things like rings may seal better, but bearings are starved of oil.

As long as it was not put in customer's cars, they are free to do as they please.

Big difference between those professional systems and an off the shelf additive from the parts store.

Turbo II Rotor

iTrader: (2)

Our engines have things called vacuum lines that allow you to add water or anything else you want to use to remove carbon without it entering the intake side of the turbo.

Defcon9

Yeah, you have vacuum lines, but it depends on the system being used to feed the product into the engine. BG had their own system to put there product in that attached to the intake and sprayed it in.

The Lucas stuff, yes it thickens the oil depending on what you're using it for it sometimes helps. I've seen engines that were burning oil about 1L or more every 1500km (honda specs allow for 1L of oil to be burnt every 1500km) that we added it to and it stopped it from burning oil. After years of use, those engines are still running strong. I wouldn't add it to a 7, but a 1995 civic with major blow by could save an engine.

Evil Aviator

Wow, you read way too much left-wing anti-big oil propaganda, lol. It was not actually Shell itself, but rather Motiva, that had the sulfur and hydrogen sulfide contamination problem. It mostly affected Shell/Texaco, but also BP/Amoco, Chevron, Citgo, Circle K, Exxon Mobil, Hess, Murphy, and many other gas stations. If you still want to tow the anti-big oil line and blame all related gas stations for one isolated event from 4 years ago that had nothing to do with the vendors, then be my guest. Here is a list of the settlement and the 29 pages of gas stations that I assume are now on your banned list:
http://www.gasclaims.com/settlement_agreement.pdf

Er, it's not an opinion. Top Tier means more detergents.

It does the same thing for rotary engines, although Motor Honey is more popular as a band-aid for rotary engines with worn seals.

Crybabii

I doubt that the carbon deposits in the rotary housing or seals could hide the flaws or keep the broken seals intact.. so i guess the engine treatments either help an fd's engine or it doesnt but i dont think it will do any harm.. so I say just gamble with it the worst it will do is lose you 20 bucks..

alexdimen

iTrader: (13)

Those reps were full of it... which doesn't surprise me considering that they sell snake oil for a living.

The turbo bearings are seperated from both the turbine and compressor by seals.

Defcon9

Yeah it is an opinion. It's my opinion which last time I checked I was entitled to. I think that the top tier rating doesn't mean it's better gas. So you add more detergent so more additives to gas. Because I'm told by the gas companies it's better I have to belive that. Like I said "In My Humble Opinion" top tier gas does not mean it's better. It's not reading that brought me to this opinion, it's personal experience. When I used Shell gas I got less miles per tank in my car and the car felt less powerful. So that makes me think maybe my engine is cleaner but the extra detergent robbed me of power.

Gas in the US is also different to gas in Canada, which is different from gas in the UK. It's all gas. Maybe in the US Shell oil is great and the best, I don't know I haven't been down there to personally product test it, all I can speak for is what we have in Toronto that I use on a regular basis and I can feel and see the difference.

Yes you're right once in the last 4 years it happened, the only one I can think of to do it twice though. Extend the time. I think it was in the 70's or 80's that Shell had a similar problem. Doesn't instill confidence in me. Once to me is to much, twice? That's not acceptable. don't care about the settelment. If my car broke down and I get money great, but I would rather not get stranded in the first place. again that is "MY" opinion.

Evil Aviator

No, it is not an opinion. Your original statement was that Top Tier doesn't mean anything. It means more detergents, and that is a fact. Now whether you think that matters or not, then THAT is an opinion.

You are failing to grasp the fact that Shell stations were not the only gas stations to sell bad gas in this case, and in other cases bad gas has been sold at gas stations other than Shell. However, if you have something aginst Shell for whatever reason, then that's fine. I just want to point out to the forum members that your opinion is not rational.

Defcon9

So what you are saying is that forum members have to listen to you but when I have an opinion it's not rational? I've never had bad gas from Sunoco or Esso, nor have I ever heard of them having the same extent of problems as shell. I'm all "left wing" because I don't like shell. So be it. But not rational??? That makes no sense. It's based on actual personal testing. Not like you, based on a report. You can defend shell all you want and educate the forum about everything you know and point out to everyone that I'm not rational.

Now you're right, top tier does mean more detergent and that is a fact. And my original statement of Top tier doesn't mean anything is an opinion. In respect to performance and gas quality it is my opinion that it means nothing. If you are to narrow minded to see that then there is only your way to see things and no matter what anyone else says it wouldn't matter because you can't open your eyes wide enough to realize you could be wrong. I am entitiled to my opinion even if it is wrong, which is up for debate. I have nothing against shell. I've just personally had many bad experiences with their gas. That is a fact.