I have a straight 6, 300 the oil was'nt changed for years,the ports are clogged for drainage, ended up with 11qts of oil in it. Now can this blow the head gasket and cause the first two cly. to lose compression. And maybe even burn the valves?
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Re: would a blown headgasket cause lost compression
Well its like this.
if indeed the oil ports through the head through the bolck and down into the oil pan then indeed the engine is going to be oil starved.
if its oil starved for any durations the pistins will begin to melt.causing compression to be lost.
head gasket is the least of your worrys here.
the head gasket is going to survive a lot longer than the pistons in an oil starve situation.
thank goodness its an inline six.
these are very simple to fix.you might want to pull the sparkplugs and look at the tips to see if you can see melted aluminim on them.
you can also do a compression test to verify comp loss.if theres no compression you will have to pull the head anyway ifs its the gasket or piston.now if there was a preexisting head gasket condition yes it could be causing the two cyl to exchange compression.but a head gasket will not be caused by oil stave.
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You most likely have a really clogged CAT or a blown headgasket.. being the fact it runs ok till it's warmed up(fluids thin when warm), I would lean more towards the headgasket.. check your spark plugs for any oil or fluid on the spark end to determine which headgasket is blown.
if you haven't had any coolant in your car for a week and you have been driving it you may have blown your head gasket, even though you haven't got 'milkey goo' on your oil dip stick. check for goo under your oil cap to see and have it tested at a garage. but from what ive read im almost certain its your head gasket. hope this helps you and beware of the dangers of a running engine so keep hands and loose clothing out of the way of moving parts and engines get very hot so be careful what you touch.
Check the oil and makes sure there is no sign of milkyness.Also keep a close eye on the radiatior water.Without doing a compression test these are the only things that can indicate a blown headgasket.Also flush the radiator and blow it out/make sure all the cooling fins arent clogged in the front.and Im assuming this model has an electric fan so make sure that when you are sitting at idle it does turn on as the temerature gets warm.
Unfortunately, that first solution is spam.Check your coolant for any signs of oil or the odor of exhaust fumes. Check your oil (dipstick) for any signs of water contamination which can make the oil look cloudy, milky or like Jergens lotion if severe enough.You could have blown headgasket that has failed between a cylinder and a coolant path.This will cause hot gases to be directly leaked into the coolant path and cause overheating regardless of load conditions or ambient temperature. A properly done compression check (checking for excessive bleed-down of pressure) will confirm this.
Stage one of a blown head gasket is a pin hole leak. As time goes by the hole(s) get bigger.
I will start traking the coolant lost and oil lose.
From the time you stop your engine to the next morning,there can be slow leakage between the coolant passage and the cyclinder end of the head gasket.
This is one possiblilty of lots of white smoke in AM.
Small amount is normal but large amount of smoke is a call for a professional check up.
To pin point a blowing headgasket you will need
1)coolant system compression tester
2)chemical reaction test for combustion test gas
If it's the org. engine from 1997,with over 110,000 then blowning headgasket is a good possiblity.
Drive it to the shop and let the pro to do the coolant pressure test and combustion gas test.
A full head gasket job with head re-surface (if it can be re-use) is worth it.
Shop around on well estiblished independent shops.
Fix the blown head gasket at the first stage of failure can safe you thousand on a head replacement.