Jump to content
  • Welcome to 205GTIDrivers.com!

    Hello dear visitor! Feel free to browse but we invite you to register completely free of charge in order to enjoy the full functionality of the website.

stumpyjag

306 Dturbo

Recommended Posts

stumpyjag

Just before I start can I just check with everyone that there is only one reason for oil in the water header tank on a 306 dturbo. Thanks.

Share this post


Link to post
Share on other sites
Davidsw

Always best to take the head of any way so it's a given .

Share this post


Link to post
Share on other sites
Duroc

Sometimes the oil/water sandwich plate on the block, that cools the oil, corrodes. This will allow the coolant to be contaminated. It's worth a try.

Share this post


Link to post
Share on other sites
stumpyjag

Thanks for that. Any quick way of testing the oil cooler.

Share this post


Link to post
Share on other sites
Tom Fenton

The only way is to pressure test it, remove both water hoses block one end off then pump it up and see if it holds pressure or not.

Share this post


Link to post
Share on other sites
stumpyjag

Thanks will give it ago.

Share this post


Link to post
Share on other sites
stumpyjag

Well the oil cooler passed pressure test. So apart from the correct thickness head gasket and new head bolts is there anything I should be worried about when I tackle a new head gasket. I have replaced two head gaskets on 205' gti's with no problems. Thanks.

Share this post


Link to post
Share on other sites
welshpug

how much pressure did you give it?

Share this post


Link to post
Share on other sites
stumpyjag

About 30 psi which it held and then put it underwater just to make sure, no bubbles.

Share this post


Link to post
Share on other sites
welshpug

nowhere near enough im afraid, peak oil pressure on the xud is 5 bar, so about 60 odd.

Share this post


Link to post
Share on other sites
stumpyjag

Surely if it had a hole in it at the very least I would see bubbles even at low pressure.

Share this post


Link to post
Share on other sites
welshpug

depends how big the hole is.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

×