Ok brent at Trail Tough told me my Radiator is trashed. I have a spare I'm going to get tested tomarrow. The problem is that Brent says the regular radiators for the 1.3 aren't big enough and have a tendency to get real hot off-roading. He recommends buying a three core for 196 bucks. I trust his opinon I just wanted to ask some of you who maybe running this setup if I can get buy without the three core for a while.
I have recently put in a 1.6 8 valve. I have a stock '87 radiator. No problems so far. I haven't had it on the trail for a day of wheeling yet, so I don't know how cool or hot it's gonna run there, but on the highway it runs just a tad bit hotter than my old 1.3, but not much. (still only half way up on the temp gauge).
I run a 1.6 8v in my 87 JX and when it's 90 out the temp creeps up higher than i'd like. If you are moving faster than 25 or so it's fine but stuck in traffic or behind slow/stuck jeeps it gets real hot. I'm going for a 3 core soon!
I have an 8v with a stock radiater. It gets hotter than I would like, especially when in stop and go traffic. At first, I replaced the usual suspects, fan clutch, thermostat and upped the fuel jets in the weber a little (I thought I might be a little too lean). No joy. By the time mid summer rolls around, I think I'll be going for a 3 core.
My 1.6L runs hot too - and sooner or later I want to upgrade to the 3 row radiator - Petroworks has it for $165.00.
Extended low-speed off-road operation of your rig requires the best cooling you can get. Our Heavy-Duty 3 Row Radiator increases the available surface area of the radiator providing you with better cooling capacity. This radiator is a direct "bolt-in" replacement for stock radiators.