1987 supra non turbo

fox74 · 07-18-2015, 04:00 AM

May be this a bit late reply, but do a compression test to see if you have a blown gasket ( check harborfreight), second it happened to me, the radiator was leaking around the corner on top of the tank, of course it was steam coming out when the engine was at the operating temp, and you could not see any leak when the engine had cooled down. you also can get radiator pressure tested. check the hoses and flush the radiator and flush by garden hose from the bottom., then add new fresh coolant, notice most leaks occur when the pressure built up inside the cooling system, look for steam from pin holes, you should remove the belt to prevent the fan from turn, of course for a short while to see where the leak is. Mine has 157K on it still going strong, don't give up on the engine yet, at 90K it has not even broken in. If you decide to go with JZ engine get 2JZ, made for US not JDMs . supraforums,com is where the guys with turbo and engine swapping are, get advice there is alot to it then engine swap. good luck

yale · 10-29-2015, 07:15 PM

Sounds like a head gasket or perhaps a crack in the block. If you are feeding water into it but can't spot a puddle anywhere then it is ending up in the crankcase.
Check the following:
- What color is the oil? Light brown, milky looking? Water is in there.
- Is the engine beginning to miss? If so check the plugs and look for one that is wet (water). Your leak is near there.
- Compression test. Rent a tester from Autozone if nearby. Should be 140+ in each cylinder, with only a slight variance between them.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
HELP PLEASE	Nick0887	Non-Generation Specific Questions	4	02-28-2009 07:26 AM
1987 supra turbo check engine lights	kidthunder650	MKIII Supra	2	03-15-2007 01:34 AM
need 1987 toyota supra non turbo specs	toofast4urass	MKIII Supra	3	02-23-2007 08:10 PM
Looking for the best intake for a 1987 toyota supra non turbo	toofast4urass	MKIII Supra	6	02-23-2007 05:30 AM
Sequential Turbo Question	suprapoweredsoarer	MKIV Supra	1	06-06-2006 12:13 AM

07-18-2015, 04:00 AM	#1
fox74 Stock Join Date: May 2009 Location: Salt Lake city Posts: 7	May be this a bit late reply, but do a compression test to see if you have a blown gasket ( check harborfreight), second it happened to me, the radiator was leaking around the corner on top of the tank, of course it was steam coming out when the engine was at the operating temp, and you could not see any leak when the engine had cooled down. you also can get radiator pressure tested. check the hoses and flush the radiator and flush by garden hose from the bottom., then add new fresh coolant, notice most leaks occur when the pressure built up inside the cooling system, look for steam from pin holes, you should remove the belt to prevent the fan from turn, of course for a short while to see where the leak is. Mine has 157K on it still going strong, don't give up on the engine yet, at 90K it has not even broken in. If you decide to go with JZ engine get 2JZ, made for US not JDMs . supraforums,com is where the guys with turbo and engine swapping are, get advice there is alot to it then engine swap. good luck

10-29-2015, 07:15 PM	#2
yale Intake Join Date: Oct 2015 Location: CT Posts: 38	Sounds like a head gasket or perhaps a crack in the block. If you are feeding water into it but can't spot a puddle anywhere then it is ending up in the crankcase. Check the following: - What color is the oil? Light brown, milky looking? Water is in there. - Is the engine beginning to miss? If so check the plugs and look for one that is wet (water). Your leak is near there. - Compression test. Rent a tester from Autozone if nearby. Should be 140+ in each cylinder, with only a slight variance between them.