 |
 | Home | Contact Us | FAQ | Search & Site Map | Link to Us |
 | Sign In | Join | Other 45 Sites in Network |
Car Forum / Porsche / Porshe 944 / November 2003Coolant leaking, but where?
I have an '87 944 na. I am losing coolant but can find not obvious leaks. I smell coolant when driving occasionally. What should I look for next? I am going to replace the reservoir cap. How can I tell if this is an internal leak of some sort? I did have a "frothy oil" problem, but had that resolved. The oil is now clear.... Thanks for any advice. jcsjcs > I have an '87 944 na. I am losing coolant but can find not obvious > leaks. I smell coolant when driving occasionally. [quoted text clipped - 7 lines] > I did have a "frothy oil" problem, but had that resolved. The oil is > now clear.... If you can smell it, it pretty much has to be a leak that is burning off once it hits the engine. Warm the engine up and rev the throttle from under the hood while looking around. You're bound to see it eventually. Even a tiny leak can spurt a bunch when you're revving the engine. Make sure to push and pull on all coolant hoses with the engine running to get any cracks to leak. Leaks can be hard to find until they get bad enough to blow the hose. > > I have an '87 944 na. I am losing coolant but can find not obvious > > leaks. I smell coolant when driving occasionally. [quoted text clipped - 15 lines] > running to get any cracks to leak. Leaks can be hard to find until they > get bad enough to blow the hose. I have an 84. I had a similar problem.....couldnt find the source of leak until a few months ago. At the very back of the head under the intake manifold is a fitting attached to the head with two bolts. It is quite difficult to see. I believe this fitting has the heater hoses attached to it (indirectly or directly , i cant remember) My fitting is leaking a bit and coolant runs along the head and pools in two small machined pockets of the head right below spark plug number 1. It also drips a little down past the oil dipstick, it doesnt leak much but i dont have enough "downtime" to fix it until the winter. Intake manifold has to come off to get to this fitting Try looking there. cheers Mark check the two heater hoses that exit the firewall (passgenger side firewall, just below the headabout 6 inches long each) to the engine one goes to the "tube" that runs above the exhaust to the water pump, the other goes up to the top of the engine to the heater control valve) if either leaks it will drip onto the exhaust pipe where it mates with the cat. the other thing to check is the heater control valve itself, it also has a teendacy to leak. > > > I have an '87 944 na. I am losing coolant but can find not obvious > > > leaks. I smell coolant when driving occasionally. [quoted text clipped - 32 lines] > > Mark Try tightening up as many of the coolant hose jubilee clips as you can see, from above and below the car. Unfortunately there are dozens of places a 944 can leak coolant from! > I have an '87 944 na. I am losing coolant but can find not obvious > leaks. I smell coolant when driving occasionally. [quoted text clipped - 11 lines] > > jcsjcs Found the cause of a mystery leak not long ago. The top radiator hose went bad and the internal layers of the hose became separated. Cooland was leaking out the end of the hose between the layers Gene > I have an '87 944 na. I am losing coolant but can find not obvious > leaks. I smell coolant when driving occasionally. [quoted text clipped - 11 lines] > > jcsjcs I would suggest checking the heater coil. If there were a leak there first you would smell it from the heater vents, second you wouldn't see the leak if it were small. > I have an '87 944 na. I am losing coolant but can find not obvious > leaks. I smell coolant when driving occasionally. [quoted text clipped - 11 lines] > > jcsjcs > > I did have a "frothy oil" problem, but had that resolved. The oil is > > now clear.... there's some stop-leak stuff you can buy which is some sort of aluminum dust or sludge, depending on the formulation you get. you dump it in the reservoir, it mixes and circulates, then it solidifies where holes are. it's valuable if you _know_ the holes are in the heater core and do _not_ want to fix the core directly. this worked for me on another car i had, but i cannot comment on how good it is for your radiator and other components. -bryan I used one of those "stop leak" products and it plugged up the entire hose from the coolant reservoir..........luckily it doesnt have seemed to have blocked anything else in the system..............buyer beware. MArk > > > I did have a "frothy oil" problem, but had that resolved. The oil is > > > now clear.... [quoted text clipped - 8 lines] > > -bryan yeah, that stop leak stuff is sketch. > > > > I did have a "frothy oil" problem, but had that resolved. The oil is > > > > now clear.... how was the frothy oil problem resolved? -bryan |
Reply to this Message |
 Sign In
 Join
 My Latest Posts My Monitored Threads My Blog My Photo Gallery My Profile My Homepage Start New Thread Enable EMail Alerts Rate this Thread
|
©2008 Advenet LLC Privacy Policy - Terms of Use
This website includes both content owned or controlled by Advenet as well as content owned or controlled by third parties.