Welcome to Ultimate Subaru Message Board, my lurker friend!
|Welcome to Ultimate Subaru Message Board, an unparalleled Subaru community full of the greatest Subaru gurus and modders on the planet! We offer technical information and discussion about all things Subaru, the best and most popular all wheel drive vehicles ever created.
We offer all this information for free to everyone, even lurkers like you! All we ask in return is that you sign up and give back some of what you get out - without our awesome registered users none of this would be possible! Plus, you get way more great stuff as a member! Lurk to lose, participate to WIN*!
* The joy of participation and being generally awesome constitutes winning
** Not an actual guarantee, but seriously, you probably won't regret it!
Serving the Subaru Community since May 18th, 1998!
87 4WD carb wagon cooling system issues
Posted 12 November 2003 - 03:45 AM
Any ideas on finding which is cracked other than dropping the exhaust and watchign for drips? I have a good passenger side head, but if her driver's side head is bad, does anyone on here have a carb EA82 head they'd be willing to part with???
Posted 12 November 2003 - 03:52 AM
Heh heh I said bunghole
Posted 12 November 2003 - 05:55 AM
A compression test may tell you which side is FUBAR.
Heads are the same for either Driver or Passenger sides, on non-turboed engines, except for the EGR passage. (This one wonders if one can't drill-out that passage.) It's the cam cases that you can't swap.
Posted 12 November 2003 - 05:57 AM
I'm interested to see whats wrong when we tear into it.
Posted 14 November 2003 - 05:46 PM
Would a compression check make a cracked head show up if it was cracked in teh exhaust ports?
I know there is a check to determine if there is hydrocarbons in the coolant, but I don't want to go spend $30 on a tool, does anyone know if you can get test strips to determine this?? I don't want to tear into it if nothing is wrong with it.
Posted 15 November 2003 - 03:25 AM
Leakdown tests tell you whats REALLY going on
compression tests only tell you so much...
Dunno if that helps, dont know how to do a leakdown test... but thats what he said when I had the 87 turbowagon compression tested.
Posted 15 November 2003 - 05:21 AM
Posted 15 November 2003 - 07:20 AM
If it show it is leaking down, pull the plugs and crank it
If H20 spues out a Cyl -> headgasket
if H20 comes out the exhaust -> the head is cracked
hope this helps
Posted 05 January 2007 - 11:07 AM
Leakdown tests show the cylinder's ability to hold air..... Although if her head is cracked in teh exhaust port like they usually do, a compression or leakdown test wouldn't show it, since it;s not in teh combustion chamber.
cracks in these heads ussually start from the little spot between the valves. every head Iv'e ever taken off has it. It is a matter of whether the crack goes far enough back into the head to get to a water passage. If that crack has grown that far it would create an open path out of the cylinder and you would see a drop in compression. However ussually these cracks only go about a half inch to an inch up into the wall seperating the intake/exhaust ports. You can look by removing the valves and peakin up in there. Crack has to run almost 2 inches up into the head before it hits any water passages.
Posted 05 January 2007 - 02:47 PM
I also replaced the tstat while i was at it.
Posted 05 January 2007 - 09:37 PM
i even took the time to edit that post. and this one too
Posted 05 January 2007 - 10:05 PM
Do you know how many miles are on this car? When was the last time it was serviced or had the timing belt/water pump changed?
Posted 09 September 2007 - 02:55 PM
0 user(s) are reading this topic
0 members, 0 guests, 0 anonymous users