» Site Navigation | | » Recent Threads | looove 04-16-2024 01:18 PM 04-16-2024 01:18 PM 0 Replies, 1,497 Views | | | | | | 02-21-2014, 03:55 PM | #1 | Junior Member Join Date: Nov 2010 Location: Northern Virginia Posts: 17 | M42 oil filter housing gasket: use gasket sealant? I'm about to do the oil filter housing gasket on my '95 31ti. I know I did this job before, probably less than three years ago. I don't remember if I used gasket sealant or not. Any suggestions? It's the M42 so there's one O-ring, which I replaced, and no bush. I got a new O-ring and gasket, but I don't know if I should used gasket sealant on it. | | | 02-21-2014, 10:56 PM | #2 | Senior Member Join Date: Jun 2003 Location: Greenville, SC Posts: 9,356 | I use a light spray gasket just to keep everything in place. I don't think it's necessary but it makes the job easier. __________________ ...steven BMW CCA #146825 1996 BMW 328ti • 2003 MINI Cooper S • 2016 M235i www.bmwcca.org | | | 02-23-2014, 11:00 AM | #3 | Senior Member Join Date: Mar 2005 Location: Portland Or Posts: 2,666 | Quote: Originally Posted by mbradican I'm about to do the oil filter housing gasket on my '95 31ti. I know I did this job before, probably less than three years ago. I don't remember if I used gasket sealant or not. Any suggestions? It's the M42 so there's one O-ring, which I replaced, and no bush. I got a new O-ring and gasket, but I don't know if I should used gasket sealant on it. | ?? My 1995 M42 had the bushing and 2 o-rings plus the gasket.. __________________ Dave - PDX 1995 318ti - Active Black and Tan. 2005 330xi - Mtech 1 - 6spd - Orient Blue/Black | | | 02-23-2014, 02:01 PM | #4 | Junior Member Join Date: Nov 2010 Location: Northern Virginia Posts: 17 | Mine has the metal oil filter housing. It has something like the "bush" thing, but it's integral with the housing and only uses one O-ring. Is yours the plastic filter housing? Maybe it's a late production change. Mine is 6/95. | | | 02-24-2014, 05:05 AM | #5 | Senior Member Join Date: Mar 2005 Location: Portland Or Posts: 2,666 | Yep I have the plastic housing lid.. and mine is a 10/95... __________________ Dave - PDX 1995 318ti - Active Black and Tan. 2005 330xi - Mtech 1 - 6spd - Orient Blue/Black | | | 02-24-2014, 11:58 AM | #6 | Member Join Date: Nov 2013 Location: tn Posts: 49 | I used a light coat of RTV. Light being the key word. Tis was on a fel-pro gasket made of a gray paper material. I honestly don't think this the biggest leak point, I think the crappy o-rings on the bush cause most of the issues. | | | 02-24-2014, 02:03 PM | #7 | Senior Member Join Date: Jun 2003 Location: Greenville, SC Posts: 9,356 | My gasket tore when I removed it. Hard to say if that was contributing to the leak. Light is the word. For me it's just to hold it in place. __________________ ...steven BMW CCA #146825 1996 BMW 328ti • 2003 MINI Cooper S • 2016 M235i www.bmwcca.org | | | 03-01-2014, 12:08 PM | #8 | Member Join Date: Nov 2013 Location: tn Posts: 49 | Quote: Originally Posted by 1996 328ti Light is the word. For me it's just to hold it in place. | Amen to that. Ive seen as many leaks caused by RTV as was fixed. | | | 03-02-2014, 06:52 AM | #9 | Senior Member Join Date: Mar 2005 Location: Portland Or Posts: 2,666 | In general RTV is not for direct contact with Oil. OK for Antifreeze,, I use Aircraft formagasket for most Pan or valve cover applications. If It has to touch oil I use the extra high temp red thats not shiny, more clay colored. Cheers. __________________ Dave - PDX 1995 318ti - Active Black and Tan. 2005 330xi - Mtech 1 - 6spd - Orient Blue/Black | | | 03-03-2014, 11:32 AM | #10 | Member Join Date: Nov 2013 Location: tn Posts: 49 | Quote: Originally Posted by pdxmotorhead In general RTV is not for direct contact with Oil. OK for Antifreeze,, I use Aircraft formagasket for most Pan or valve cover applications. If It has to touch oil I use the extra high temp red thats not shiny, more clay colored. Cheers. | Formagasket is good no doubt, but it should only be used in applications where the gasket material is of vegetable fiber or paper only or straight metal to metal contact. The make up of formagasket is largely alcohol based so it will start to destroy rubber and silicone as soon as it is applied. Any other gasket material such as he is looking at (rubber impregnated paper or plastic sheet such as garlock, the only two gaskets ive seen made for the housing) requires an RTV. RTV is largely made of silicone and is therefore better for use with rubber. It also has higher heat resistance than you would expect. | | | | 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 | | | |