Originally Posted by waldig
Please allow me to wade in to this in a soft way: CRAP
The original I/C was on the radiator system and had to suffer the entire pressure of the radiator and stat controlled temperature. Pressure went up to the limit of the radiator pressure cap and if Splinter is still here, he'll quote the exact pressure, assume 15 pounds per square inch.
The stock and better pumps are limited to 5 to 10 PSI in BLANK_OFF conditions and are NO THREAT to the integrity of the I/c core. Boost is often that high and responcible for the accordian effect that flexes the core possibly promoting leaks. Leaks are rare but you need to confirm that you have one. If you have compressed air you could do a leakdown test or do a water pressure test with the engine off. YOU MUST LIMIT THE TEST PRESSURE TO SAY 20 PSIG so as not to cause a big failure where there was not one before.
If you have a leak you could have it rewelded assuming it is in an exposed position, though Id try the best epoxy on a water side leak.
NOW. I have no pressure in my radiator or my I/C system, they are isolated per Brians work. I have the radiator cap loose all the time, too old to fix radiators that flex and fail and newer cars run so much pressure that they get a real work out. Instead, I use 75% antifreeze and the BEST WAL-MART distilled water and install a cooler tstat. I have a 182 and a 170 stat and run the 182 all year. I have lots to do and cars are but a small part so changing stats to avoid low temp CEL's in the weather pretty much changed my approach, use the 180 stat.
BTW the 170 did not make a real change for the fans are computer controlled to maintain stock temps 190+, unless your moving forward - driving.
Looks, cant tell a book by its..............I/C's are samo samo. Test it if in doubt. If your going to replace it, let me have first dibs on the old one so I can do a look see inside, please.
Weekend and date night one start tomorrow..............Weeee
Woody
PS:
I recognize that pink garage rug and H/E
Most of what you say is either over my head or I'm too lazy to figure it out. Either way, from what I gather, the pump has nothing to do with the IC leak?