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Old 06-11-2012, 03:18 PM   #1
Dizzle85
1st Gear Newbie
 
Join Date: May 2012
Location: Fort Atkinson, WI
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Need help! E30 overflow tank routing

I bought a 1985 325e and have since basically replaced the whole top end of the motor. Bought a new water pump when I did the timing belt and installed it and replaced everything around it only to realize the water pump I installed doesn't have the opening for the overflow tank that the original pump had. Can I replace the hoses with a hose kit for a later model 325? I originally was going to find a t-fitting and route it that way but it has been much more of a nightmare to find a proper fitting than I ever imagined. I know the later models have a hose between the thermostat housing and the heater core and it splits off for the overflow tank. Just wondering if this would work or is the thermostat housing also different in the later models?
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Old 06-11-2012, 03:56 PM   #2
InfiniteDice
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Location: St. Catharines
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Swap to the single outlet and you'll need to replace a bunch of hoses and the tank itself. Which unless you have spares of, will cost you more than getting the proper pump.

Try to find a t fitting again. I'd go to the plumbing section of any hardware store and look at the copper fittings just be sure the inner diameters are correct. And make sure the copper 't' has at least 1" of surface on each of the 3 ends. Take a bit of your hose to make sure it fits, you can use a heat gun and/or some 50/50 dishsoap and water to slip them on. (get a smooth pipe t fitting, not a threaded fitting)

I'd also make sure to orient the t in the correct manner just in case it's that way for a reason, (does the double outlet face downward or upward from the main outlet.)
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Last edited by InfiniteDice; 06-11-2012 at 04:02 PM.
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Old 06-27-2012, 02:35 AM   #3
Dizzle85
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Location: Fort Atkinson, WI
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Sorry took so long. Try as I might, the hardware stores around here are worthless. Ended up having a local muffler shop make a t-fitting from scratch. Worked out very well so far.
Breaking in the new head right now.

Picture of it with the new head and all the paint and polishing my friend and I had the ambition for.
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Old 06-27-2012, 07:22 AM   #4
Ceeker
Parts hoarding partner...
 
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Location: Toronto
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nice job!!! :-)
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I think I've had 14 bmw's in 4 years.
2 IX's -sold and parts
2 325i 4 dr - sold
4 318is all white - sold and parts
1 87 325is red - parts
1 89 325i vert grey - parts
1 90 325is white - keepin
1 87 325i vert -red - keepin
latest addition 1 88-325is red - parts
latest addition 1 89-325i vert - white -fixin/sold
latest addition 1 92-318i vert - blue - parts
latest addition 1 87 325is blk - parts.

latest addition as of 2013-Gold 87-325is auto! it's a keeper!
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Old 06-27-2012, 11:10 AM   #5
cormier
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Wow that's quite the ambition! Looks good!
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