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1987 GL Wagon overheated......
Posted 06 January 2004 - 01:30 AM
Today I replaced the hose and inspected and changed the oil, there was no sign of any water or frothing so I thought I was going to get lucky and not have big problems. But I noticed that there seems to be coolant dripping very little at a time off of the timing covers.
The car run great in the upper RPM's, but it will hardly idle (like 200rpm) or if you lug it, it won't want to run very well.
My main question is what do you guys think the problem is? How much damage could I be expecting? Thanks a ton and sorry for the long post!!
Posted 06 January 2004 - 01:37 AM
Posted 06 January 2004 - 10:01 AM
Posted 06 January 2004 - 03:24 PM
I hope someone else can explain better what its for but I believe there is some kind of sensor that the coolant passes by to control some carb function associated with engine temp. I couldn't find it in Chiltons. If thats not seeing proper temp or is sucking air it could be an issue.
By the way, it's quite a pain to get at. Its tucked up behind a bunch of rigid vacuum lines, in front of engine, right side of carb as you look from front of car. I was going to change the hose with a new original (its got a couple bends formed in it) but the other end runs behind alternator mounting bracket so I trimmed and reconnected. Just postponing the inevidable.
Posted 08 January 2004 - 11:12 AM
Pull the cap and dry it out (hair drier would be kewl) check the wires and the sp. plug areas also.
If you do want to do a comp test. just look for one cyl to be much lower than the others.
The spark plug in the cyl with the failed gasket will also look "steam cleaned"
Is the car loosing coolant?
As for a cracked head, you must have a coolant system leak down test performed at a place that has a leak down tester.
This devise consists of a pump that connects to the rad in place of the cap and pressurizes the coolant system.
The crack is normally in the exhaust port and will allow coolant to leak out of the exhaust pipe near the head.
Hope this helps
Posted 08 January 2004 - 11:18 AM
Normally you would have 2 bad and 2 good on a not so horribly overheated Subaru and the 2 bad would of course be on the same side most of the time but not always. Anything under 100 is definately bad.
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