C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

1989 Lower Radiator Hose Replacement

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Old Jun 20, 2014 | 07:13 PM
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Default 1989 Lower Radiator Hose Replacement

I am planning a trip across the Nevada Desert on U.S. 50 from Ely to Stateline (Lake Tahoe) Nevada in August. To be prepared, I am flushing out my coolant, installing new radiator hoses, thermostat and checking everything along the way. Any suggestions on the install of the lower radiator hose? Not a bad process, but there must be some tricks to attaching the new hose to the water pump and tightening the hose clamp. The upper hose is a breeze, and the thermostat replacement went pretty well too. Any suggestions would be appreciated. Save the Wave and Corvettes Forever! Steve ONeal
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Old Jun 20, 2014 | 07:45 PM
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My method to ease that lower hose onto the fitting(s) is to apply a little antifreeze to both the fitting and the inside of the hose before sliding the hose into position.
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Old Jun 21, 2014 | 02:03 PM
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Make sure you have the correct hose. Z51/Z52 cars use a different lower hose than base suspension (Z51/Z52 hose has an extra bend to clear the additional frame bracing).
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Old Jun 21, 2014 | 04:37 PM
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If you delete your AIR pump and all the crap associated with it you will have great access to the front of your engine. The EGR delete that Corvettemods1 sells is a nice setup and looks great!
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Old Jun 21, 2014 | 07:48 PM
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Originally Posted by 65Z01
My method to ease that lower hose onto the fitting(s) is to apply a little antifreeze to both the fitting and the inside of the hose before sliding the hose into position.
That is good advice. I just did my hoses this spring, on my '90 L98. definitely put some kind of slippery lube on the inside of the hose. Also, i climbed over the front of the engine, from the drivers side, to get decent access with my right hand, to work the hose onto the pump. Not a fun job, but doable. The hose clamp should be positioned just so a long handle screwdriver can access it. good luck!
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