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914World.com _ 914World Garage _ Paper In the cooling fan
Posted by: bandjoey Jun 17 2021, 05:15 PM
After 30 minutes of highway driving speed the temperature goes to the bottom of the Redzone. Oil cooler completely clean and fresh oil plus the Engine tin cooling vent fully open I never let it go in the red. I pulled this out of the fan a piece of yellow notebook paper twisted so that it looks like it would cover about half the inside of the cooling fan.
Have you had something like this before and do you think that alone could cause the motor to run hot ?
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Posted by: mrholland2 Jun 17 2021, 05:30 PM
After 30 minutes of highway driving speed the temperature goes to the bottom of the Redzone. Oil cooler completely clean and fresh oil plus the Engine tin cooling vent fully open I never let it go in the red. I pulled this out of the fan a piece of yellow notebook paper twisted so that it looks like it would cover about half the inside of the cooling fan.
Have you had something like this before and do you think that alone could cause the motor to run hot ?
Kinda like a message in a bottle!!
Posted by: PatrickB Jun 17 2021, 06:11 PM
After 30 minutes of highway driving speed the temperature goes to the bottom of the Redzone. Oil cooler completely clean and fresh oil plus the Engine tin cooling vent fully open I never let it go in the red. I pulled this out of the fan a piece of yellow notebook paper twisted so that it looks like it would cover about half the inside of the cooling fan.
Have you had something like this before and do you think that alone could cause the motor to run hot ?
Kinda like a message in a bottle!!
Pretty sure that's why mine was running hot, found a piece of paper towel in mine.
Posted by: BeatNavy Jun 17 2021, 06:24 PM
After 30 minutes of highway driving speed the temperature goes to the bottom of the Redzone. Oil cooler completely clean and fresh oil plus the Engine tin cooling vent fully open I never let it go in the red. I pulled this out of the fan a piece of yellow notebook paper twisted so that it looks like it would cover about half the inside of the cooling fan.
Have you had something like this before and do you think that alone could cause the motor to run hot ?
Kinda like a message in a bottle!!
Pretty sure that's why mine was running hot, found a piece of paper towel in mine.
Me too. I had a paper towel that got sucked in and oil temps spiked.
Posted by: bretth Jun 17 2021, 06:31 PM
I wonder if you can get a screen cover for the fan opening like some Buses had?
Posted by: 930cabman Jun 17 2021, 06:43 PM
I wonder if you can get a screen cover for the fan opening like some Buses had?
Probably pretty easy to fabricate something
Posted by: Front yard mechanic Jun 17 2021, 06:51 PM
I wonder what happened to my home work
Posted by: ndfrigi Jun 17 2021, 07:00 PM
Posted by: bandjoey Jun 17 2021, 07:01 PM
I never realized how important the fan is. A small paper causing an almost overheat. Out of fear of an overhear and a new habit i'll always keep a watch on the temp gauge.
Posted by: dirk2056 Jun 17 2021, 07:02 PM
You had paper (that sucks) but I had shop rag !! What a mess new 2056 motor broke 3 fins on fan and overheated motor and had to replace one exhaust valve. Got off easy and relatively cheep. New fan on ebay and lot of time rebuilding head. I now have the cleanest engine compartment everything is bolted down.
Posted by: mepstein Jun 17 2021, 07:12 PM
Have you had something like this before and do you think that alone could cause the motor to run hot ?
Yes and Absolutely!
Posted by: wonkipop Jun 18 2021, 05:34 AM
yeah
but how the f%ck did that get in there.
no way is that going to get sucked in via the engine cooling or engine lid.
the lid grille mesh is too small to admit that piece of paper?
somehow that was already floating around in the engine bay?
but i can believe that would be sufficient to mess with the cooling.
so how did it get in there.
and as to fans of the plastic grille, well the paper is still going to get sucked on to the grille, so i am not sure that is the solution.
i think those grilles on bus engines were just there to stop vw technicians getting their neck ties getting caught up in the fan while tuning the twin carbs? 
Posted by: bandjoey Jun 18 2021, 06:49 PM
1.5 hours today at 3000rpm or higher in 93 degree heat and it ran like new. Amazing that paper didn't effect balance (that I could tell) but blocked airflow to the heads.
Posted by: bkrantz Jun 18 2021, 07:50 PM
yeah
but how the f%ck did that get in there.
no way is that going to get sucked in via the engine cooling or engine lid.
the lid grille mesh is too small to admit that piece of paper?
somehow that was already floating around in the engine bay?
but i can believe that would be sufficient to mess with the cooling.
so how did it get in there.
and as to fans of the plastic grille, well the paper is still going to get sucked on to the grille, so i am not sure that is the solution.
i think those grilles on bus engines were just there to stop vw technicians getting their neck ties getting caught up in the fan while tuning the twin carbs?
That's what I was thinking. Most stuff found in the fan, or worse, downstream in the fins on the heads or cylinders, has to be self-inflicted. Unless the rubber seal around the engine tin is missing, or the lid was left open. (not including mouse nests)
Posted by: Mark Henry Jun 19 2021, 07:25 AM
Nature loves to score two points. 
I have an OCD rule of keeping engine lids (any trunk, door, etc) closed, in fact it pisses the young lad off sometimes.
Besides stuff being blown into the car I've seen door hinges and trunk lids damaged by dust devils and strong winds.
On the bus fan screen... I bet the first time you have to change a fan belt you will toss it.
Posted by: rbzymek Jun 19 2021, 08:41 AM
In my case a plastic shopping bag was blown off the rear deck and into the engine bay when I wasn't looking. I closed the lid and went for a ride. About 20 minutes later I was wondering why there was smoke trailing the car. I popped the lid. The engine was so hot it was burning off the old oil gunk on the cylinder fins still smoking like crazy. I waited for it to cool holding my garden hose hoping it would not flash and burn. I was lucky. Compression test failed miserably. I replaced the 1.8 with a 2056.
Posted by: Robarabian Jun 19 2021, 08:57 AM
When you unraveled the paper, did it say they were trying to contact you about your auto warranty?
Posted by: euro911 Jun 19 2021, 01:05 PM
Yep. I had a bus screen on one of my motors and got rid if it when I had to replace the alternator belt
Posted by: PCH Jun 19 2021, 04:08 PM
I too have been wondering what's written on that paper.
Posted by: wonkipop Jun 19 2021, 06:17 PM
I have an OCD rule of keeping engine lids (any trunk, door, etc) closed, in fact it pisses the young lad off sometimes.
Besides stuff being blown into the car I've seen door hinges and trunk lids damaged by dust devils and strong winds.
you are not the only one.
the rear trunk lid loves to pretend its on the cutty sark in the roaring 40s.
.....after reading this thread i'm adding feeling around the fan before start up to paranoid routines like sniffing fuel lines.
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