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 Post subject: Oil cooler leak
PostPosted: Fri Apr 10, 2015 9:08 pm 
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Location: fairland, in
I have a dog house style oil cooler on my 1776 and for some reason my oil cooler keeps going bad.... the first time it happened was last fall, I rode all night and it was fine but the morning after I started it up and it started spewing oil out of the top left vent, and I bought a new one and rode all day last Saturday and was all good, but Sunday morning when i started it to get it off the trailer it did the same thing. I cant think of what would cause it to that. Help!!

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 Post subject: Re: Oil cooler leak
PostPosted: Fri Apr 10, 2015 9:42 pm 
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Location: cinti,oh
when you say top left vent, are you talkin about the hole comin out of the block? if so install new o rings there,and make sure you use the rite ones!. and if its on top of the oil cooler than your shroud has got to be vibrating a hole in the cooler.. get that bitch ready for dirty turtle bro, I expect to see you and phil there :mrgreen: hell I still got my valve cover rigged up from the last time we rode :lol: :lol: but that will all be changed this week :twisted:

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 Post subject: Re: Oil cooler leak
PostPosted: Fri Apr 10, 2015 9:44 pm 
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Location: cinti,oh
also .when you first start a cold motor let it idle for awhile to get to a normal operating temp before you rev it up, cause the pressure might blow oil seals out

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 Post subject: Re: Oil cooler leak
PostPosted: Fri Apr 10, 2015 9:53 pm 
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Location: mooers hill IN
diamonddav wrote:
also .when you first start a cold motor let it idle for awhile to get to a normal operating temp before you rev it up, cause the pressure might blow oil seals out

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 Post subject: Re: Oil cooler leak
PostPosted: Fri Apr 10, 2015 9:53 pm 
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Location: fairland, in
Its coming out of the very top cooling vent, and i always let it idle for a while till its warm. If I figure out this oil cooler problem I know ill be there! But Phil probably wont make it... hes having motor issues, his end play is so bad its messing with timing and everything he needs to rebuild!

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 Post subject: Re: Oil cooler leak
PostPosted: Fri Apr 10, 2015 10:03 pm 
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Location: cinti,oh
im still not understanding.."the very top cooling vent"!! :lol: so from the top of the oil cooler or the bottom where the o rings seal it up?

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 Post subject: Re: Oil cooler leak
PostPosted: Sat Apr 11, 2015 2:28 pm 
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Location: fairland, in
Its coming from there. Lol

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 Post subject: Re: Oil cooler leak
PostPosted: Sat Apr 11, 2015 3:07 pm 
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hmmm.. well you definitely need a new oil cooler! maybe the shroud is vibrating on it up there? might try to do a little forceful maneuvering on the shroud when you reinstall. and maybe even put some thin weatherstripping in there. whats the chances of only you getting 2 oil coolers that give in the same spot!

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 Post subject: Re: Oil cooler leak
PostPosted: Sat Apr 11, 2015 3:40 pm 
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Location: fairland, in
well this is even a new shroud! im gonna tear it apart today and see if i cant find the cause... thanks Dave!

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 Post subject: Re: Oil cooler leak
PostPosted: Sat Apr 11, 2015 11:12 pm 
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Location: Germantown Ohio
I would bet the engine has high oil pressure and is blowing the cooler apart. What weight oil do you run? Does it uave the high pressure relief springs in it?


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 Post subject: Re: Oil cooler leak
PostPosted: Sat Apr 11, 2015 11:43 pm 
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Location: fairland, in
I run 10-40, im not sure about the springs I bought the motor built, what oil is recommended??

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 Post subject: Re: Oil cooler leak
PostPosted: Sun Apr 12, 2015 7:04 am 
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Posts: 163
Location: Pittsburgh,Pa.
Sometimes the oil pressure relief valve gets stuck in its bore.
I always run a metric reamer in that bore by hand. It does
not remove any metal, but it sure removes alot of strange
gunk. It is no surprise that the piston can get stuck in the open
or in the closed position. Yours might be stuck in the closed
position... and the cold oil is forced through the cooler at very
high pressures.


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 Post subject: Re: Oil cooler leak
PostPosted: Tue Apr 14, 2015 8:23 pm 
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Location: fairland, in
If it doesn't fall out with a little jiggling does that mean its stuck? The one closest to the pully practically fell out but the one back by the flywheel wont come out... how do i get it out??

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 Post subject: Re: Oil cooler leak
PostPosted: Tue Apr 14, 2015 9:07 pm 
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Location: fairland, in
This valve goes with the short spring by the flywheel doesn't it? And the mushroom looking goes by the pully?

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 Post subject: Re: Oil cooler leak
PostPosted: Tue Apr 14, 2015 9:44 pm 
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Joined: Thu Sep 25, 2014 5:05 am
Posts: 163
Location: Pittsburgh,Pa.
Type 1 VW oil pressure plunger and spring discussions:

http://www.thesamba.com/vw/forum/viewtopic.php?t=341389

http://www.vw-resource.com/oiling_system.html

https://www.bing.com/images/search?q=ty ... ydhEO2U7rg

Special tool:

http://www.ebay.com/itm/Oil-Relief-Pist ... 2c86e79b67

http://www.volkszone.com/VZi/showthread.php?t=697175

I purchased my reamers from this place:

http://www.ebay.com/itm/New-1Pc-Straigh ... 5f8d164d41


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 Post subject: Re: Oil cooler leak
PostPosted: Tue Apr 14, 2015 10:09 pm 
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Joined: Mon Feb 11, 2013 5:48 pm
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Location: fairland, in
Thank you man I appreciate all your help!

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 Post subject: Re: Oil cooler leak
PostPosted: Wed Apr 15, 2015 9:07 pm 
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Joined: Mon Feb 11, 2013 5:48 pm
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Location: fairland, in
The valve that is by the flywheel was stuck, I used a 1/2 inch tap to pull it out and wrapped a rag around a tire pressure gage to clean the hole out and it now moves freely so it is fixed, now I have to buy another 85 dollar oil cooler.. but I dont mind buying it this time because I know it wont happen again! Thank you jimp for your help its much appreciated!!

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 Post subject: Re: Oil cooler leak
PostPosted: Thu Apr 16, 2015 12:06 am 
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Location: cinti,oh
hellyeah, glad you got it.. so see you at dirty turtle then !!! :?:

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 Post subject: Re: Oil cooler leak
PostPosted: Thu Apr 16, 2015 12:09 am 
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Location: fairland, in
As of right now yes I will be at dirty turtle! :D

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 Post subject: Re: Oil cooler leak
PostPosted: Thu Apr 16, 2015 6:46 am 
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Location: Pittsburgh,Pa.
You're not done quite yet. Since the valve was stuck, that means
that the oil bypass passageway did not have oil flowing through it
and down into the sump. In some cases, there may be too much
residual gunk in that passageway that will block the bypass. You should test the system with compressed air before you sacrifice
another cooler.


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 Post subject: Re: Oil cooler leak
PostPosted: Thu Apr 16, 2015 11:39 am 
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What size reamer does it need to be??? Jimp?

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 Post subject: Re: Oil cooler leak
PostPosted: Thu Apr 16, 2015 12:06 pm 
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Posts: 163
Location: Pittsburgh,Pa.
Don't forget to buy a Gene Berg oil pressure relief valve pump cover?
http://www.geneberg.com/cat.php?cPath=5_124

Reamer is 16mm, but read these warnings:
http://www.thesamba.com/vw/forum/viewtopic.php?t=290867


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