Question about 1991 Mazda RX-7

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88 rx7 13b twin rotary engine: problem anti-freeze filled combustion chamber in engine, remove spark plugs and out comes anti-freeze. 30,000 miles on rebuilt engine. did not overheat and anti-freeze was good to -25 degrees. made short trip drove normal, returned to start later and saw anti-freeze dripping from exhaust pipe????

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  • Anonymous Mar 14, 2014

    96 olds cutlas 3100 starting engine with radiator cap off anti freeze gushes out with in a few seconds

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I had this happen to me. acually mine was abit of reverse.the engine was putting presure in my coolant system aand also making the engine had to start. i had no idea what it was and i did alot of work to find out,but then i went simple and put some stop leak in it and it fixed the problem so far. its been about 4 weeks with no problems. i think that its the same problem becuase i research and its a common thing. depending on how bad your leak is it might just be a bad seal. so you would need another rebuild. i can tell you that as long as your engine doesnt overheat it shouldnt cause any additional problems

Posted on Mar 20, 2009

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Sounds like you have a cracked block between the water jacket and the combustion chamber.Did you ave a warranty on the rebuild?

Posted on Sep 17, 2008

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93 ram150,318 plugs fouling out in forty miles burning fuel I've replaced rotor,cap wires plugs came with NGK 1yr. replaced with auto lite.35 thriy miles fouled out NOW BOUSH GAP .45 what can I do


a 93 ram 150 318 engine bay search comes up with a carby set up

will reply to that set up

how many miles on the engine
any other issues other than fouling plugs ?

running rich ?
anti pollution or EGR valve not working properly
carboned up intake manifold
poor cylinder compression
if not
could have hardened oil stem seals and the oil is dribbling down the valves into the combustion chamber
you wont see smoke out the tail pipe

valve stem seals can be replaced with the heads on

you could go to iridium plugs

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Oct 23, 2016 | Cars & Trucks

3 Answers

My 88 dodge mini-ram cargo van shows up in manuals as a grand caravan is not starting. It turns over, but sounds like it is out of gas. What could it be?


check that the fuel is getting to the engine and the sparkis presentm if it is a gas/petrol engine that is. The spark and fuel must be introduced into the combustion chamber simultaneously foran engine to work.
If one is present without the other the engine cannot work.So check that the fuel is getting there by slightly loosening one of the plugs and turning over for a good while ...then quickly remove the spark plug and check to see whether the end of the plug is moist with fuel. If it is not quicklysniff the spark plug holechecking for the smeell ofgas/ petrol... if you can smell it the n that is onepossible causediscounted.
Thenpush the removed plug into thewire associated with it and place the tip close to a metal section of the engine.....do not hold it.....
Withsomebody cranking the engine over observe the spark produced...if a spark is produced make note ofwhether it is a healthy, visible spark... If it is that may be another cause discounted.
If the spark is ok and the fuel is ok thenyou need to check the timing, that isyou need to check that thetwo elements are introduced into the combustion chamber simultaneously
This can be done by a mechanic if you cannot check yourself. A mechanic may be able to makeadjustments to the fuel supply and the spark to make them coincide thereby making the engine work.
Ifduring the above process you find that no fuel is getting to the combustion chamber , or whetherthe injection of fuel is a weak one , you must seek to ascertain what the cause of the bad fuel supply is.
Maybe clogged fuel lines orfuel pipes impeding the flow.
Maybe aweak fuel pump not delivering enough pressure.
A malfunction of any ofthesensors associated with the fuel system that lead to no or bad fuel delivery. These include thecrank position sensor, the cam position sensor, the throttle position sensor, the electronic control unit, the sensors attached to it, etc.

If the spark is found to be weakyou should try changing plug wirres/cables
If that has little effect check the distributor cap/rotor arm for condition.
If that is okay check the coil or coil packs.

Remember thatthese are onlysome of the potential causes of non working engines, There are rather more.

Jul 16, 2015 | Dodge Cars & Trucks

1 Answer

After changing engine all lots of white smoke can out and now the engine will not start


White smoke comes from water, blue from burning oil and black from too rich a fuel mixture. If the engine was running before the oil change occurred then perhaps you put in far too much oil. This can force oil past seals and into the combustion chamber resulting in thick smoke. Carefully check the oil level on the dip stick for the correct fill level. If there is too much you must remove the overfill. If oil has entered the combustion chamber the plugs may be fouled. Pull one out and examine it. If it is not gray and clean you must clean them all before the spark will jump the gap and the engine can run. If the engine did not run before there is a great chance , based on white smoke, that water is entering the combustion chamber.

Oct 23, 2014 | 2013 Chevrolet Malibu

1 Answer

Where are the Spark Plugs located in a 2004 Lincoln Navigator?


Hello, first how many miles do you have on this Lincoln? On that 4.6 L V8 engine they do have spark plugs but each plug has it's own spark coil located on a long rubber plug. You will see four little coils on each side of the engine. There will wires going in to the individual coils. There will be a bracket the holds the coils in place with a small 9 or 10 mm nut. Remove the nut, and gently pull on eac coil. There Hello, first how many miles do you have on this Lincoln? If you have over 120 thousand miles on this engine then it might need new spark plugs. On that 4.6 L V8 engine they do have spark plugs but each plug has it's own spark plug coil. You will see four little coils on each side of the engine. There will wires going in to the individual coils. There will be a bracket the holds the coils in place with a small 9 or 10 mm nut. Remove the nut, and gently pull on each coil. There a long rubber plug that fit in each spark hole. These rubber plugs are about 4 1/2 to 5 inches long.


Before removing the plug use an air hose with 50 to 60 lbs of pressure to blow each spark plug hole out which might have foreign object in the hole. Why, if you remove the spark plugs, and there is foreign material in that plug hole. Guess what, that stuff will fall into the combustion camber.



Then you will really have some problem. How fix if stuff fall into the combustion camber.

Squirt small amount of oil in the combustion camber, unplug all the coils and clear out there plug hole. Now remove all the spark plugs. Now, you can crank the engine and will the little amount in that cylinder that has the junk in it. The oil will wet the foreign debrie, and blow it out the spark plug hole. Then use a clean rag with with some oil it with a long screw driver to clean that spark plug hole Be careful that don't push the foreign material back into the combustion camber. Do this several time with little amount of oil.



Now, you can install the new spark plugs. On the spark plugs threads use some anti-shiz grease. Why squirt oil into the combustion camber? The oil is used to seal the rings on the piston to increase the cylinder compression. Just a small amount goes a long ways. GB...stewbison
a long rubber plug that fit in each spark hole. There rubber plug are about 4 1/2 to 5 inchs long.

Before removing the plug use an air hose with 50 to 60 lbs of pressure to blow each spark plug hole out which might foreign object in the hole. Why, if you remove the spark plugs, and there is foreign material in that plug hole. Guess what, that suff will fall into the combustion camber.
Then you will really have some problem. How fix if stuff fall into the combustion camber.
Squirk small of oil in the combustion camber, unplug all the coils and clear out there plug hole. Now remove all the spartk plugs. Now, you can crank the engine and will the little amount in that cylinder that has the junk in it. The oil will wet the foreign debrie and blow it out the spark plug hole. Do this serveral time with little amount of oil.

Now, you install the new spark plugs. On the spark plugs threads use some anti-shiz grease.
Just a small amount goes a long ways. GB...stewbison

Sep 12, 2011 | 2004 Lincoln Navigator

1 Answer

I have a 1988 rxt that was running great when it was new, at 30,000 miles, it was parked and sat indoors for about 10 years. with it being a rotary engine, what would i be looking at replacing to get it...


for starters -- the battery is going to be shot,, and the gas in the fuel tank is going to be bad,, and yes' look at all the hoses and belts for cracks and splits. it would also be a good idea to change the oil and spark plugs. check the tires for cracks and also check the air filter box and filter.
if you have any troubles along the way -- please feel free to write back and ask me.

c...

Feb 05, 2011 | Mazda RX-7 Cars & Trucks

3 Answers

Why do I have to keep adding anti freeze to my vehicle, I see no leaks, there is also no signs of water in my motor oil and my vehicle is a 1999 land rover discovery 11 ,


Possibly a blown head gasket allowing coolant into the combustion chamber. Is the exhaust steamy or does it smell like coolant? Also, check spark plugs for wetness. If you have more questions, please let me know.

Oct 16, 2010 | Land Rover Discovery Cars & Trucks

1 Answer

Just need instructions on how to change the spark plugs and wires


Spark Plugs Spark plugs ignite the air and fuel mixture in the cylinder as the piston reaches the top of the compression stroke. The controlled explosion that results forces the piston down, turning the crankshaft and the rest of the drive train. The average life of a spark plug 30,000 miles (48,300 km). On the 2.2L (LN2),engine the life of the spark plug is 100,000 miles (166,000 km). Part of the reason for this extraordinarily long life is the exclusive use of unleaded fuel, which reduces the amount of deposits within the combustion chamber and on the spark plug electrodes themselves, compared with the deposits left by the leaded gasoline used in the past. An additional contribution to long life is made by the High Energy Ignition (HEI) system, which fires the spark plugs with over 35,000 volts of electricity. The high voltage serves to keep the electrodes clear, which suffer less pitting and wear compared to breaker point ignitions. Fig. 1: Breakdown of a common spark plug 86812008.gif
Fig. 2: Heat range on spark plugs explained 86812006.gif
Nevertheless, the life of a spark plug is dependent on a number of factors, including the mechanical condition of the engine, driving conditions, and the driver's habits. When you remove the plugs, check the condition of the electrodes, they are a good indicator of the internal state of the engine. Since the spark plug wires must be checked every 15,000 miles (24,000 km), the spark plugs can be removed and examined at the same time. This will allow you to keep an eye on the mechanical status of the engine. A small deposit of light tan or rust/red material on a spark plug that has been used for any period of time is to be considered normal. Any other color, or abnormal amounts of wear or deposits, indicates that there is something amiss in the engine. Fig. 3: Explanation of the spark plugs numbering system ---
Spark Plug Wires INSPECTION & TESTING Every 15,000 miles (24,000 km), inspect the spark plug wires for burns, cuts, or breaks in the insulation. Check the boots and the nipples on the distributor cap. Replace any damaged wiring. General Motors requests that you replace your spark plug wires every 30,000 miles (50,000 km). The resistance of the wires should be checked with an ohmmeter. Wires with excessive resistance will cause misfiring, and may make the engine difficult to start in damp weather. To check resistance, remove the distributor cap, leaving the wires in place. Connect one lead of an ohmmeter to an electrode within the cap; connect the other lead to the corresponding spark plug terminal (remove it from the spark plug for this test). The following chart gives resistance values as a function of length. Replace any wire which shows a resistance over 30,000 ohms.
  • 0–15 in. (0–38cm): 3,000–10,000 ohms
  • 15–25 in. (38–64cm): 4,000–15,000 ohms
  • 25–35 in. (64–89cm): 6,000–20,000 ohms
  • Over 35 in. (89cm): 25,000 ohms
It should be remembered that resistance is a function of length; the longer the wire, the greater the resistance. Thus, if the wires on your car are longer than the factory originals, resistance will be higher, quite possibly outside these limits. prev.gif next.gif

Aug 01, 2010 | 1993 Oldsmobile Cutlass Ciera

2 Answers

What are they for spark plugs


spark plug make sparks inside combustion chamber, make the engine run. if your ford taurus is a V6 than you have 6 of them. each piston required on plug. with out the spark plugs the engine will not run.

Sep 20, 2009 | 2004 Ford Taurus

1 Answer

1990 Honda Civic low kms. overheated, added


I want you to take a couple of spark plugs out and examine them. If you find Anti-freeze on them then you may have a blown headgasket. A very common problem of driving a car until it overheats. I really do hope im wrong. Since it is an overhead valve engine with the cam shaft above...its a 1000.00 to 1500.00 dollar job to have it properly repaired. From here out im just going to explain why this happens...
When a car overheats - be it a faulty thermostat...low coolant...or a faulty water pump or improper coolant mixture ratio. The engine gets so hot that it actually makes the top of the engine change shape... it actually changes enough to damage the head gasket. The head gasket keeps the explosion inside the combustion chamber. Keeps the water in its coolant jacket. and keeps the oil inside its ports. When the Headgasket fails. Sometimes coolant gets into the oil (makes a milky residue form on the inside of the oil filler cap...or makes the engine oil look like chocolate milk.) or oil gets into the coolant (makes your coolant have an oil slick on top) It can also cause water to get into the combustion chamber and when the engine is running - blast the combustion back into the coolant (causes the coolant overflow to overflow or spray) or oil gets into the combustion chamber causing the plugs to get fouled (dirty). worse case...all the above happens. I hope this helps in figuring this problem out...i really do hope im wrong about a blown headgasket . As even i tremble in fear of it happening to my car. Good Luck!

Jun 05, 2009 | 1990 Honda Civic

1 Answer

Water leaking from spark plugh


Hello;
Water / coolant coming from a spark plug hole is not good. However since you have a rotary engine, the probale cause is an o-ring that has gone bad. The older rotary engines were notorious for the o-rings going out. The o-rings seal the combustion, oil and coolant passages. The engine will need to be resealed. Hope this helps.
Thanks;
Rich
RPM Northwest

Jan 30, 2009 | 2004 Mazda RX-8

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