What is this hole for? - '98 C70 T5 Topic is solved

mashinalens · Post by **mashinalens** » 18 May 2020, 04:57

Hello All,

Recently I bought C70 T5 1998 (320k km) and went to a mechanic to change the fluids and the spark plugs. When he removed the engine cover I saw the hole which was sealed with some black material (a little bit soft when engine is hot). As I saw on photos of other T5 engines this hole should be free. Does anyone know what this closed hole can cause and why someone did this?

By the way, PCV system is clogged here (glove test was failed) and I plan to change it. I want to know, do I need to remove upper half of cylinder head to clean this black staff?

Post by **RickHaleParker** » 18 May 2020, 07:13

Optional location for a PCV breather hose. Like the optional location for the oil filler.
If it is not leaking leave it alone. If you want it to look better cut it off flat.

As for why somebody would do that. We have seen this one time before and nobody has a clue.

Post by **abscate** » 18 May 2020, 07:27

I think tourist imports came with the henway option that mounted there

Post by **Eddystone** » 18 May 2020, 12:02

abscate wrote: ↑18 May 2020, 07:27 I think tourist imports came with the henway option that mounted there

About three pounds.

mashinalens · Post by **mashinalens** » 18 May 2020, 13:20

funny
But this black thing is making me crazy. I think previous owner thought that oil was dripping from it and seal it.

Post by **Clemens** » 18 May 2020, 13:21

isn't that the glory hole?

mashinalens · Post by **mashinalens** » 18 May 2020, 13:23

Clemens wrote: ↑18 May 2020, 13:21 isn't that the glory hole?

sealed one

Cookeh · Post by **Cookeh** » 18 May 2020, 14:34

Rick hit the nail on the head, here's another thread for cross-reference:

viewtopic.php?t=74111

Doesn't matter if plugged or open to be honest.

crlande · Post by **crlande** » 18 May 2020, 16:36

On my '94 it is for a tube belonging to the air pump system.
viewtopic.php?f=1&t=78097