Thermostat
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From: HLS on 12 Sep 2008 09:08 "Dave Allured" <nospam(a)nospam.com> wrote in message news:48C7EBC1.6AA3(a)nospam.com... > The no thermostat trick is good for summer. When you start freezing > your butt in the winter, might be a good time to put in the lowest rated > thermostat you can find that will fit in the hole. > > Timing chain cover? That should be dead air space or crankcase air > inside, not coolant! If coolant is coming out there, your leak is in a > worse place inside the cover! Am I seeing this wrong? > > Is your water pump anywhere near this spot?? > > --Dave No, you arent seeing it wrong. He has been on about this for months. He apparently has a coolant leak somewhere near the front of the engine and found a "rusted out" spot. Hard to say exactly what is causing the leak. If he wants to take short runs, then removing or loosening a cap is one way to keep the pressure off the liquid (if any) in the cooling system. It is not a fix, for sure, but can buy you some time to get home or to the FLAPS. Removing the thermostat while leaving a pressure cap in place just forces more coolant out the "hole", which is lower in the system than the filler cap, in this case. You havent followed a lot of Cuhulin's posts, have you ;>)
From: jim on 12 Sep 2008 09:34 HLS wrote: > > "Dave Allured" <nospam(a)nospam.com> wrote in message > news:48C7EBC1.6AA3(a)nospam.com... > > The no thermostat trick is good for summer. When you start freezing > > your butt in the winter, might be a good time to put in the lowest rated > > thermostat you can find that will fit in the hole. > > > > Timing chain cover? That should be dead air space or crankcase air > > inside, not coolant! If coolant is coming out there, your leak is in a > > worse place inside the cover! Am I seeing this wrong? > > > > Is your water pump anywhere near this spot?? > > > > --Dave > > No, you arent seeing it wrong. He has been on about this for months. > He apparently has a coolant leak somewhere near the front of the engine > and found a "rusted out" spot. Hard to say exactly what is causing the > leak. The hole isn't due to rust. The casting where his leak is should be aluminum. Rust I believe is corrosion of iron based metals only. The hole is probably the result of a casting defect combined with years of corrosion. He has a round hole that is 1/4" in diameter so he should be able to fix it with a good quality epoxy if he gets the metal good and clean and the metal surrounding the hole is still sturdy. A 15 lbs cooling system will only exert a 1 lb. load on the patch so it should be able to hold that. If it seals without pressure - it should be OK. -jim > > If he wants to take short runs, then removing or loosening a cap is one > way to keep the pressure off the liquid (if any) in the cooling system. It > is not a fix, for sure, but can buy you some time to get home or to the > FLAPS. > > Removing the thermostat while leaving a pressure cap in place just forces > more > coolant out the "hole", which is lower in the system than the filler cap, in > this case. > > You havent followed a lot of Cuhulin's posts, have you ;>) ----== Posted via Pronews.Com - Unlimited-Unrestricted-Secure Usenet News==---- http://www.pronews.com The #1 Newsgroup Service in the World! >100,000 Newsgroups ---= - Total Privacy via Encryption =---
From: Dave Allured on 13 Sep 2008 02:03 HLS wrote: > > "Dave Allured" <nospam(a)nospam.com> wrote in message > news:48C7EBC1.6AA3(a)nospam.com... > > The no thermostat trick is good for summer. When you start freezing > > your butt in the winter, might be a good time to put in the lowest rated > > thermostat you can find that will fit in the hole. > > > > Timing chain cover? That should be dead air space or crankcase air > > inside, not coolant! If coolant is coming out there, your leak is in a > > worse place inside the cover! Am I seeing this wrong? > > > > Is your water pump anywhere near this spot?? > > > > --Dave > > No, you arent seeing it wrong. He has been on about this for months. > He apparently has a coolant leak somewhere near the front of the engine > and found a "rusted out" spot. Hard to say exactly what is causing the > leak. Ah. Thanks for explaining. There is a thermostat elbow up in that vicinity, isn't there? That and water pump are likely suspects. > If he wants to take short runs, then removing or loosening a cap is one > way to keep the pressure off the liquid (if any) in the cooling system. It > is not a fix, for sure, but can buy you some time to get home or to the > FLAPS. > > Removing the thermostat while leaving a pressure cap in place just forces more > coolant out the "hole", which is lower in the system than the filler cap, in this case. Well, I must agree with you about loosening the radiator cap. However thermostat in or out should not make any immediate difference in added pressure at the leak. The main effect of removing the thermostat is that the engine will run abnormally cool because coolant is circulating at full flow all the time, and removing more heat through the radiator. This extends the drive time before the engine interior heats up to coolant boiling point. When coolant starts boiling and spewing, it is time to pull over and cool down a while. > You havent followed a lot of Cuhulin's posts, have you ;>) Hah, you got me on that one. Not lately. Well I do enjoy chatting with the fellow about kludging engines and tobacco and stuff, at least when he is not busy mocking me. Catchy tune, though. ;-) --Dave
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