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Guest Message by DevFuse

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Valvetrain noise....

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10 replies to this topic

#1 Guest_montejw_*

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Posted 11 April 2002 - 12:38 PM

I've got an 88 GL wagon with a newer engine from one of those import used engines from Japan deals. It's always had intermittent valvetrain noise. It's been getting worse lately so I replaced the oil pump. Didn't fix it.

What next to look at? I read on one manual about air getting into the oil system through a leaking oil pump gasket and causing the hydraulic valve lash adjuster(s) to collapse for a bit. Is there another place for air to enter the system? The suction tube in the oil pan? I haven't looked at that in a manual so I don't know how that is put together.

The noise seems to always be coming from the same side (right) of the engine.

Do I start replacing valve lash adjusters?

Really not wanting to throw money at the car. The pump, gaskets, new timing belts cost me plenty.


#2 Guest_crazy man scooby_*

Guest_crazy man scooby_*
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Posted 11 April 2002 - 12:58 PM

ok the oil pickup tube might have a crack in it this is rare but i have seen it on alot of engine of all diffrent types. but beforr you go tearring into the oil pan try adding a bottle(one full quart) of MMO (Marvile Mystery Oil) with the next oil change and use a thiker oil with the MMO as it will thin out the other oil a little. so if you use 10w-40 then use 15w-40 with the MMO.

my engine in my 85 wagon had the valve train tick till i put two quarts of MMO and filled the rest up with 20w-50 on a NAPA Silver (AKA Wix) oil filter. the tick stoped the next day and never came back.

#3 Guest_thealleyboy_*

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Posted 11 April 2002 - 01:52 PM

I also have the same intermittant noise on my 93 Loyale. It seems to stop when the car reaches normal operating temp.

Craz, do you think a 10w30 synth blend is too thin to use in conjunction with the Marvels Mystery oil? What is it in this stuff that would quiet down the valvetrain? Seems like going thinner would make the noise worse.

Ive never tried MMO; always been afraid to run anything other than clean oil after a "motor-flush-gone-bad" experience I had in my beloved first car (an old Dodge Charger).


#4 Guest_cameron_*

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Posted 11 April 2002 - 04:18 PM

lifter fix This is what happens.

#5 Guest_SubaruTex_*

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Posted 11 April 2002 - 04:27 PM

I have an '86...with some lifter noise, last time i changed the oil, i went to 10w-50 and a quart of the MMO. Boy do I notice a difference!! No more noise...well, the leaky exhaust, but lets not go there. Give it a try :)

#6 Guest_thealleyboy_*

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Posted 12 April 2002 - 08:11 AM

Great info Cameron, that's the right way to do these things.

So I take it you are not a fan of Marvel Mystery oil (lol)


#7 Guest_cameron_*

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Posted 12 April 2002 - 05:27 PM

Don't have it in OZ. Besides, it is probably just ATF. None of those products are good for an engine. Why do you reckon those engine flush products stress not to rev the engine?

#8 Guest_crazy man scooby_*

Guest_crazy man scooby_*
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Posted 12 April 2002 - 07:47 PM

MMO is made from well head oil. (stuff that forms on the oil pump heads and is also used to make drip gas or trick fuel) and has some other chems in it that help it bond to metal it's grate stuff.

#9 Guest_montejw_*

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Posted 13 April 2002 - 10:53 AM

Since I already replaced the oil pump I'll try the MMO. It seems to be a little better after the oil pump change, but it still happens a little bit.


#10 Guest_Rocky_*

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Posted 13 April 2002 - 11:17 AM

I too had a valvetrain noise on an 86 SPFI EA82 Sedan
I just happened to remember that someone on the board once posted to try a product called "Seafoam" and to put 1/3 in the crank case, 1/3 in the fuel tank and save 1/3 for the next oil change. I just happened to find Seafoam at my local NAPA and i figured i had nothing to loose on a car than has 147,000 miles on the clock!...I walked right out of the NAPA store (spending $6.00 on the seafoam) and poured some in my crankcase....the next day NO ticking at all...honestly the best $6.00 bucks i have ever spent!...:)

#11 Guest_StephenHein_*

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Posted 11 May 2002 - 12:40 AM

This is also a good discussion. I went to Cameron's link and that discussion is good. He has put together a very lucid description and instruction.


'86 brat

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