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

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mashinalens
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What is this hole for? - '98 C70 T5

Post by mashinalens »

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?
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RickHaleParker
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Re: What is this hole for? - '98 C70 T5

Post by RickHaleParker »

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.
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abscate
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Re: What is this hole for? - '98 C70 T5

Post by abscate »

I think tourist imports came with the henway option that mounted there
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Re: What is this hole for? - '98 C70 T5

Post by Eddystone »

abscate wrote: Mon May 18, 2020 7:27 am I think tourist imports came with the henway option that mounted there
About three pounds. ;-)
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mashinalens
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Re: What is this hole for? - '98 C70 T5

Post by mashinalens »

:lol: funny
But this black thing is making me crazy. I think previous owner thought that oil was dripping from it and seal it.
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Re: What is this hole for? - '98 C70 T5

Post by Clemens »

isn't that the glory hole?
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mashinalens
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Re: What is this hole for? - '98 C70 T5

Post by mashinalens »

Clemens wrote: Mon May 18, 2020 1:21 pm isn't that the glory hole?
sealed one :D
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Re: What is this hole for? - '98 C70 T5  Topic is solved

Post by Cookeh »

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.
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Re: What is this hole for? - '98 C70 T5

Post by crlande »

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