EGR blanking on late TD5: couldn't remove pipe from cooler to exhaust manifold

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Stock_90_TD5_SW

Stock_90_TD5_SW

Active Member
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156
Location
Estonia
Guys, this topic again.

Can anyone explain the logic: is it dangerous or bad for the engine to having blanked only the exhaust gas cooler to inlet manifold. The bolts in the exhaust manifold were so corroded that we didn't want to screw with those (see photo):

egr cooler right.jpg


Does this create any kind of risk of the cooler getting too hot or creating problems from pressure building up in it and not having anywhere to escape?

Thanks!!
 
It may just be because I am used to older vehicles but the bolts on that as far as am concerned look very good! Give it a wire brush, soak them in penetrating fluid every day for a week and use a quality tool, properly fitting, and I expect it will come out very easily.
 
When I took my EGR off (now refitted) I could not get the manifold bolts undone so I just fitted a blank between the flanges at the cooler end of the pipe and left the pipe in situe. It cant cause any problems as it is blocked off anyway when EGR valve closes, the cooler cant overheat as it still has water going through it. I never had any problems, but did not see any advantage or improvement with it removed.
 
Scooby22 said:
When I took my EGR off (now refitted) I could not get the manifold bolts undone so I just fitted a blank between the flanges at the cooler end of the pipe and left the pipe in situe. It cant cause any problems as it is blocked off anyway when EGR valve closes, the cooler cant overheat as it still has water going through it. I never had any problems, but did not see any advantage or improvement with it removed.
Click to expand...
I did that too worked fine.
Later I had to take the manifold off so I took the pipe off.
Looks like I may have to put it back again if they follow the new MOT regulations.
 
Oh, bankz5152 - that's exactly what I was afraid of :| I will ask my mechanic to get on it. Will soak the bolts and hope they will come of in a couple of days. Thanks everyone for your replies!!!
 
Stock_90_TD5_SW said:
Oh, bankz5152 - that's exactly what I was afraid of :| I will ask my mechanic to get on it. Will soak the bolts and hope they will come of in a couple of days. Thanks everyone for your replies!!!
Click to expand...
When you do get it out is may be worth replacing the bolts with proper hex head bolts rather than allen bolts. I have found it is easier to round out a stubborn allen head bolt than a standard hex when trying to remove them.
 
Scooby22, thanks for the advice. I live in Estonia and here the MOT people rarely look under the bonnet. Even less likely for them to know the look of a standard TD5 layup, so I'll take my chances. We will know next May, if everything goes OK :)
 
We actually had to weld the screws to get them out.. but it's totally worth it considering the possible risks of keeping the thin aluminium pipe on..
 
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