1986 E30 325i overheating - BMW Forum - BimmerWerkz.com
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#1 (permalink) Old 10-25-2010, 10:44 PM
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1986 E30 325i overheating

Hi All, I recently piced up a 3 series 325i 86 mod and being an hour from home on a freeway with no stopping allowed i was alarmed when i saw the temp guage start to rise. it rose until just under the red area, then, it started to drop back to about 3/4. Well, not being able to stop i continued on and for the next half hour it continued to rise and fall. When i finally got home i opened the bonnet and was suprised that i could touch the metal rocker cover and all other engine parts. I thought thatrunning that hot wold make it untouchable.
I also checked the oil level and dipstick for water/moisture but the oil was clean. I checked under the oil cap, no moisture residue or milkiness.
I checked the fluid (header tank) and it was low but no sign of oil etc.
I did not the engine was a little tappety, but probably not uncommon for its age, and really only noticilble with the hood open.
The car drives quite nice, plenty of power etc. I did note a couple of misses at times. Do these models have rev limiters on them??
Any help would be appreciated.
Have i bought a lemon?

cheers

changa
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#2 (permalink) Old 10-25-2010, 10:47 PM
OMFG another one!?
 
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Could be the water pump beginning to give out. Does the car have service records?

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#3 (permalink) Old 10-25-2010, 11:09 PM
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Hi Witeshark, No service records. I didnt even get ownes manual so there are buttons i do not even know do what and really dont know how to work the air con or get the elect aerial up etc. The brake light also stays on but i have told that when brake pads are changed it needs to be re set.
Thanks for your help.
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#4 (permalink) Old 10-25-2010, 11:30 PM
OMFG another one!?
 
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I'd say the car should have a good full service.

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#5 (permalink) Old 10-25-2010, 11:41 PM
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Well, i am here to get tips on doing just that. I am a mechanic, but dont have my own workshop nowdays so i dont have the plug ins to do diagnostics.

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#6 (permalink) Old 10-25-2010, 11:50 PM
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In the light of that info, a full m20 service is a good start; change the timing belt and water pump (oil pump as well maybe) and do a valve adjustment. Inspect the clutch driven cooling fan... It will all be worth while!

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#7 (permalink) Old 10-26-2010, 12:29 AM
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Is there somewhere i can get the info on an M20 service please?

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#8 (permalink) Old 10-26-2010, 09:22 AM
OMFG another one!?
 
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Quote:
Originally Posted by changa View Post
Is there somewhere i can get the info on an M20 service please?

changa
Here's some info from e30world

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#9 (permalink) Old 10-26-2010, 11:44 AM
You Can Has A Custom Title!!
 
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german-speed-demon has a brilliant future german-speed-demon has a brilliant future german-speed-demon has a brilliant future german-speed-demon has a brilliant future german-speed-demon has a brilliant future german-speed-demon has a brilliant future german-speed-demon has a brilliant future german-speed-demon has a brilliant future german-speed-demon has a brilliant future german-speed-demon has a brilliant future german-speed-demon has a brilliant future
also, a bentley manual is a good use of $40.

R.I.P fast 6


Two wheels or Four, I'm happy as long as the throttle is pinned.
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#10 (permalink) Old 10-26-2010, 05:47 PM
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cheers guys, that pretty standard stuff.

thanks

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