Compression test - Page 2

arcturus · Aug 22nd, 2014, 13:49

It works. Yes the seals were quite worn. Will see how oil consumption works out next weekend when i drive to Lisbon and back.

arcturus · Aug 23rd, 2014, 08:55

Good news and bad news! Changing the seals took only about 1/2 hour after making an air line adapter from an old spark plug. The bad news is that some time during the operation one of the cam followers slipped sideways and all attempts to withdraw it with a magnetic probe so far have failed. I may have to end up after all, lifting the head to get at it!

Derek UK · Aug 23rd, 2014, 14:53

That's a bummer. I'm guessing that it got pulled out by the suction from the pushrod. They hang on really tight sometimes but you don't realise it until too late. Looks like you need a stronger magnet!

Google - extra long needle nose pliers.
You should be able to find some locally similar to those pictured but you'll need some very skinny ones and hope you get lucky.

arcturus · Aug 26th, 2014, 18:05

Job finished at last but not after needing to lift the head a second time as another follower decided to do it sideways. My advice if you ever need to lift the head on a B20 of B18 is to locate the push rods before you decide to tighten down the bolts.

CLIVERALLY · Aug 26th, 2014, 19:41

Derek beat me to the old rope trick- it works but I would have the head off and in addition pressure tested-- just remember the old adage buy cheap buy twice

Aug 22nd, 2014, 13:49	#11
arcturus arcturus Last Online: Today 08:22 Join Date: Mar 2006 Location: Sagres Portugal	It works. Yes the seals were quite worn. Will see how oil consumption works out next weekend when i drive to Lisbon and back. __________________ life's too short to drink bad wine

Aug 23rd, 2014, 08:55	#12
arcturus arcturus Last Online: Today 08:22 Join Date: Mar 2006 Location: Sagres Portugal	Good news and bad news! Changing the seals took only about 1/2 hour after making an air line adapter from an old spark plug. The bad news is that some time during the operation one of the cam followers slipped sideways and all attempts to withdraw it with a magnetic probe so far have failed. I may have to end up after all, lifting the head to get at it! __________________ life's too short to drink bad wine

Aug 26th, 2014, 18:05	#14
arcturus arcturus Last Online: Today 08:22 Join Date: Mar 2006 Location: Sagres Portugal	Job finished at last but not after needing to lift the head a second time as another follower decided to do it sideways. My advice if you ever need to lift the head on a B20 of B18 is to locate the push rods before you decide to tighten down the bolts. __________________ life's too short to drink bad wine

Aug 23rd, 2014, 14:53	#13
Derek UK VOC Member Last Online: Jun 15th, 2024 11:39 Join Date: Jul 2006 Location: Chatham	That's a bummer. I'm guessing that it got pulled out by the suction from the pushrod. They hang on really tight sometimes but you don't realise it until too late. Looks like you need a stronger magnet! Google - extra long needle nose pliers. You should be able to find some locally similar to those pictured but you'll need some very skinny ones and hope you get lucky.

Aug 26th, 2014, 19:41	#15
CLIVERALLY Master Member Last Online: May 28th, 2024 18:49 Join Date: May 2010 Location: wetherby	Derek beat me to the old rope trick- it works but I would have the head off and in addition pressure tested-- just remember the old adage buy cheap buy twice

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