I found this lost poor thing in rec.autos.vw. Can anyone help?

Included message:

>>From simood@aol.com (Simood)
>>Newsgroups: rec.autos.vw
>>Subject: 85 Vanagon Oil Light
>>Date: 5 Feb 1995 01:21:10 -0500
>>
>>I have a 1985 vanagon with a what seems to be an oil pressure
>>problem,after about 20-30 minutes of driving the oil pressure light comes
>>on ,engine looses power and develops a loud ticking sound.If I turn off
>>engine for a minute or two and restart it it runs fine for about the same
>>amount of time,and then the same old thing.
>>
>>
>>Anyone ?