1985 308 coolant problems

Start off with a new rad cap. If it still leaks after several drives then you have other issues

 

Where is the hose located? Have you properly bled the system of air? How old and what type ( 1.1 bar, .09 bar ) of coolant expansion tank cap are you using?

Dan

 

It may be your cap but I believe most of these overflow hose leaks are because of lack of proper air bleeding.

 

Change to a 1.1 bar rad cap and Don't overfill the tank, I think it should be filled to about 1 inch BELOW the BOTTOM of the filler neck. (that's where mine is and I get no drips from the overflow hose)

 

Steve is right. Use the 1.1 and ignore anyone that tells you not to.

 

new radiator cap for overflow tank is the cheapest and easiest first step but it may be time to have all the hoses changed as it is at that age and it's always a great sense of peace of mind to know the coolant will stay where it should

 

It's probably the cap. The spring tension gets weak and can't hold the pressure, so that's why it overflows out of the expansion tank overflow hose.

Jim

 

I had the same problem. I replaced the cap and it still happened. I drained the tank to about an inch below the top - problem solved....

 

If you look closely on the tank you will see a "MAX FILL" line. So with a cold engine fill it to that line and put on a new cap. Always check this after you bleed the system. If you over fill it will blow out the tank vent.

 

same prob for me fitted new cap still same, bleed system, same, same, went right thru electrics turns out 1 of my fans was f##ked.... chek if fans are working and are coming on at the right time............ 2 chek fans ign on remove the 2 terminals on fan switch bott of radiator short together the fans should kik in