» Site Navigation | | » Recent Threads | looove 04-16-2024 01:18 PM 04-16-2024 01:18 PM 0 Replies, 538 Views | | lolita porn 04-13-2024 11:45 PM 04-13-2024 11:45 PM 0 Replies, 229 Views | lolita porn 04-13-2024 11:43 PM 04-13-2024 11:44 PM 1 Replies, 146 Views | lolita porn 04-13-2024 11:40 PM 04-13-2024 11:41 PM 1 Replies, 156 Views | lolita porn 04-13-2024 11:38 PM 04-13-2024 11:39 PM 1 Replies, 162 Views | lolita porn 04-13-2024 11:36 PM 04-13-2024 11:37 PM 1 Replies, 156 Views | lolita porn 04-13-2024 11:35 PM 04-13-2024 11:35 PM 0 Replies, 137 Views | lolita porn 04-13-2024 11:34 PM 04-13-2024 11:34 PM 0 Replies, 140 Views | lolita porn 04-13-2024 11:33 PM 04-13-2024 11:33 PM 0 Replies, 137 Views | | | | | 11-29-2016, 03:17 AM | #1 | Senior Member Join Date: Sep 2006 Location: Greeley CO Posts: 233 | M44 Oil Check Valve in Block Referring to #9 and #10 in this link: http://www.realoem.com/bmw/enUS/show...diagId=11_6099 The check valve is lowermost, then there's the rubber spacer sleeve above it. I'm wondering how high above the surface of the block the spacer should protrude? Should it be making contact with the head gasket? And should it be replaced? My spacer is sitting flush with the block, see the picture below. | | | 11-29-2016, 12:29 PM | #2 | Senior Member Join Date: Aug 2009 Location: Georgia Posts: 595 | It should be flush with the block. Knowing that rubber material gets very hard and brittle when exposed to oil and heat after so many miles, I would replace the spacer. Make sure the non-return valve is oriented correctly. Although not sure if the check valve can be installed backwards though, just making sure. It prevents oil from draining back to the pump and oil pan. __________________ 1996 Ti 280k miles and still going.... 1993 964 - holding on to this one 2001 Burban, 240k miles 2018 Suburban Z71 | | | 11-30-2016, 07:08 AM | #3 | Senior Member Join Date: Sep 2006 Location: Greeley CO Posts: 233 | Believe it or not, the spacer is still quite pliable. I did learn that the M42 engine omitted this part, although some have modified their blocks to accept it. Based on that, I'm going to leave it as is. | | | 11-30-2016, 12:52 PM | #4 | Senior Member Join Date: Aug 2009 Location: Georgia Posts: 595 | Good call. I would also put it back. It's just a flow restrictor that limits oil flow to the head so the bottom end still gets oiled sufficiently and also an anti-drain back to keep the oil passages in the head, cams and lifters filled up. Prevents lifter tick at start up. __________________ 1996 Ti 280k miles and still going.... 1993 964 - holding on to this one 2001 Burban, 240k miles 2018 Suburban Z71 | | | 06-26-2019, 03:30 PM | #5 | Junior Member Join Date: Jun 2019 Location: South Bend, IN USA Posts: 7 | I'm cleaning my head now on my '97 M44 and my Haynes manual is not too clear on how this comes out. I want to replace it with a new one as a proactive measure. Is the rubber spacer just holding it in place or does this need to be threaded in from the bottom end of the block? | | | 06-26-2019, 05:44 PM | #6 | Senior Member Join Date: Sep 2006 Location: Greeley CO Posts: 233 | Quote: Originally Posted by BigDaddyDaveH I'm cleaning my head now on my '97 M44 and my Haynes manual is not too clear on how this comes out. I want to replace it with a new one as a proactive measure. Is the rubber spacer just holding it in place or does this need to be threaded in from the bottom end of the block? | Bentley book doesn't mention it either, not surprising. Judging from images, I'd say the part slip fits into a shouldered hole, and the spacer holds it in. A pick should remove the spacer, same pick or a magnet for the check valve. Those are pricey little parts: https://www.google.com/search?q=1111...T8cBvjK-ZPJYM: https://www.google.com/search?ei=z54...iz.3Oe_TCt_va0 Here's someone else's account: http://www.318ti.org/forum/showthread.php?t=33112 South Bend, eh? I've got a lathe that was made there, almost 59 years ago. | | | 06-26-2019, 06:13 PM | #7 | Junior Member Join Date: Jun 2019 Location: South Bend, IN USA Posts: 7 | My grandfather may very well have built part of that lathe LOL! Very cool. Thanks for the links and info! | | | 06-26-2019, 06:44 PM | #8 | Senior Member Join Date: Sep 2006 Location: Greeley CO Posts: 233 | If you do replace it, let us know how it goes. | | | 07-03-2019, 05:13 PM | #9 | Junior Member Join Date: Jun 2019 Location: South Bend, IN USA Posts: 7 | As stated earlier, the grommet is just a rubber sleeve and mine popped right out with a bit of urging with a pick between the grommet and the head. The check valve pulled right out with a pair of needle nose pliers and the new one dropped right in place after I cleaned out the oil feed chanel and the little machined step the valve sits on. Pushed the grommet back in easy as pie. The grommet sits just proud of the head surface and seals between the valve and the gasket. | | | 07-04-2019, 06:10 AM | #10 | Senior Member Join Date: Sep 2006 Location: Greeley CO Posts: 233 | Success! Thanks for posting the outcome, hopefully, someone else will benefit down the road. So your grandfather worked at South Bend Lathe for a long time? | | | | Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | | Posting Rules | You may not post new threads You may not post replies You may not post attachments You may not edit your posts HTML code is Off | | | |