Product Numbers on Cyliderhead Gaskets

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Anonymous Poster	Product Numbers on Cyliderhead Gaskets 10/22/2010 8:33 AM
	The water level in my radiator now needs to frequently topped up. This is an indication that the cylinder head gasket is starting to let water pass in to the cylinders. Now when i started to look on ebay for a replacement head gasket i noticed that the numbers seemed to be different. My car is a Nissan Sunny made in 1994, So the head gasket that i am looking for will be GA14DE. The GA is the type of engine the 14 is the size of the engine and the DE is for fuel injectors. But then after these numbers and letters there is another N14 or N15 code. And even a SSN14 number. The head gasket will be a composite type made from CEMJO. do these extra numbers relate to the thickness of this material or to the temperature range, or even the operating pressure range. Thank you for your help.
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Kilowatt0 Guru Join Date: Aug 2007 Location: Earth - I think. Posts: 2143 Good Answers: 165	#1 Re: Product Numbers on Cyliderhead Gaskets 10/22/2010 3:46 PM
	I can't comment on the part number, but are you sure that it is a blown head gasket? Other cause include: 1. Warped head. 2. Cracked block. 3. Leak in radiator, heater core, water pump, or hoses. 4. Or it could simply be a bad radiator cap. An indication is not a definitive conclusion. Why do you think it is the head gasket? __________________ TANSTAAFL (If you don't know what that means, Google it - yourself)
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standarded Guru Join Date: Mar 2008 Location: Southeast US of A Posts: 555 Good Answers: 50	#2 Re: Product Numbers on Cyliderhead Gaskets 10/23/2010 12:38 AM
	MIGHT be an indication. You must check to VERIFY if that is indeed the case. Never assume. Bad business. __________________ Speak softly and carry a big stick.
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roy hammy Guru Join Date: Jun 2009 Location: Ontario Canada Posts: 930 Good Answers: 31	#3 Re: Product Numbers on Cyliderhead Gaskets 10/23/2010 7:18 AM
	Remove spark plugs and pressurize each cylinder for about 10 minutes with the radiator full. If you observe bubbles you have a weak head gasket or crack in a main component and you can stop the test. Your parts store should be able to advise you on the proper gasket. Next pressurize the radiator with a hand pump designed for the job and observe any leak down.If there is an external leak it may show up. This is a start that usually identifies the location of the problem. __________________ The fine line between cuddling and holding one down to prevent escape must be learned
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Andy Germany Guru Join Date: Sep 2006 Location: Near Frankfurt am Main, Germany. 50.390866N, 8.884827E Posts: 17996 Good Answers: 200	#4 Re: Product Numbers on Cylinder head Gaskets 10/23/2010 7:55 AM
	Usually (in my limited experience), if there is a leak between the water cooling and the combustion chambers (for any reason whatsoever), when running the engine, eventually you will see bubbles (often filled with a whitish gas) rising in the radiator (cap off, no not the one on your head!!). Do fill the radiator completely full , overflowing when the engine runs is normal too..... It may take some minutes at tick over to get bubbles coming out of the cap....running the engine faster may speed that up...... If the leak gets larger (assuming you are correct), you could get problems where a cylinder collects a lot of water and through "hydraulic lock" could severely damage the engine when starting, so you do need to get it found and fixed asap..... As someone else mentioned, there are many places that cooling water can escape from (and some of them are not obvious, the heater for one....), not just the cylinder head...... __________________ "What others say about you reveals more about them, than it does you." Anon.
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Anonymous Poster	#5 Re: Product Numbers on Cyliderhead Gaskets 10/24/2010 7:52 AM
	Correct Roy and Andy. Those Nissan engines are fantastic........at 225000km mine[1600cc] has no measureable wear of crank,pistons,rings and silinders.......but those assembled here [South Africa] allmost all of them ends up with cracked cylinderheads. Last week I replaced my Nissan engine with a 2nd hand engine imported from Japan bought for R6000. This was the cheapest obtion because a new head from the agents is ......R17 000+ Do radiator pressure test and cylinder-leakage tests first. Jurie
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Andy Germany (1); Anonymous Poster (1); Kilowatt0 (1); roy hammy (1); standarded (1)

You might be interested in: Gaskets and Gasketing, Weatherstripping, Heat Exchangers

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