markyboy 13 Posted February 18 Share Posted February 18 Hello all. I am in the process of replacing the paper element type oil filter housing on my 2.25 petrol with a cartridge type oilf filter housing from a 200 TDi. I need to blank off the oil cooler ports, one of which there is a blanking plate and 'O' ring for. I have the balnking plate and 'O' ring and have blanked the relevant port off. I am looking for a blanking plug for the other port. I was under the impression it was M20x1.5. However, I have obtained an M20x1.5 blanking plug but it doesn't seem correct, it goes in about 4 or 5 threads and then tightens up. It seems to me that the thread is incorrect, the diameter seems 'about' right though. Does anyone know the correct thread size? Here's a picture by way of explanation. The port in question is highlighted by the red arrow. Thanks in advance, Mark. Quote Link to post Share on other sites
western 944 Posted February 18 Share Posted February 18 There are 2 variations of these filter heads, one has a concave seat in the red arrowed part & item 3 to accept the matching hose end, the other type has no concave seat & the hose ends are straight with a flange on where a 'O' ring seal sits between the flange & seat in filter head. https://forums.lr4x4.com/topic/103388-defender-200tdi-oil-cooler-hose-connections/ more info in here https://forums.lr4x4.com/topic/25065-oil-cooler-hose-adaptor-for-200tdi-engine/ I do have one of each in my garage, both are damaged & no longer useable, but I may have the plug your looking for. these heads were used on all the pre 300Tdi 4 cylinder 2.5 litre engines petrol & diesel. 1 Quote Link to post Share on other sites
markyboy 13 Posted February 18 Author Share Posted February 18 15 minutes ago, western said: There are 2 variations of these filter heads, one has a concave seat in the red arrowed part & item 3 to accept the matching hose end, the other type has no concave seat & the hose ends are straight with a flange on where a 'O' ring seal sits between the flange & seat in filter head. https://forums.lr4x4.com/topic/103388-defender-200tdi-oil-cooler-hose-connections/ more info in here https://forums.lr4x4.com/topic/25065-oil-cooler-hose-adaptor-for-200tdi-engine/ I do have one of each in my garage, both are damaged & no longer useable, but I may have the plug your looking for. these heads were used on all the pre 300Tdi 4 cylinder 2.5 litre engines petrol & diesel. Ralph, thank you for the reply. If you have a look at the attached photos, it appears that the port does have a concave seat in the bottom. If you do have something suitable, I would be more than willing to buy it from you if you would be willing to post it to me. regards, Mark. Quote Link to post Share on other sites
western 944 Posted February 18 Share Posted February 18 I've had a look in my garage, I haven't got a suitable plug to fit in that port, but on 2.5 n/a diesel without oil cooler the parts book gives plug RTC6851 & washer 213961 to close the port off. another option is see if your area has a Pirtek or Hydroscandia agent, they maybe able to source a suitable plug. Quote Link to post Share on other sites
markyboy 13 Posted February 18 Author Share Posted February 18 2 minutes ago, western said: I've had a look in my garage, I haven't got a suitable plug to fit in that port, but on 2.5 n/a diesel without oil cooler the parts book gives plug RTC6851 & washer 213961 to close the port off. Brilliant, thank you Ralph. 1 Quote Link to post Share on other sites
western 944 Posted February 18 Share Posted February 18 If you do find a suitable plug, Please close this post with the size/type of thread details. Quote Link to post Share on other sites
markyboy 13 Posted February 18 Author Share Posted February 18 9 minutes ago, western said: If you do find a suitable plug, Please close this post with the size/type of thread details. Ralph, I've ordered the parts you have identified. 1 Quote Link to post Share on other sites
western 944 Posted February 18 Share Posted February 18 I hope the plug fits OK, Quote Link to post Share on other sites
markyboy 13 Posted February 18 Author Share Posted February 18 16 minutes ago, western said: I hope the plug fits OK, I'll be sure to let you know. 1 Quote Link to post Share on other sites
markyboy 13 Posted February 22 Author Share Posted February 22 Just to confirm, the plug which Ralph suggested - RTC6851 with copper washer 213961 - is the correct one to block off the oil cooler ports on a 200TDi oil filter housing. Thanks Ralph. Regards, Mark. Quote Link to post Share on other sites
Anderzander 867 Posted February 22 Share Posted February 22 I took a mechanical oil pressure feed from there. Is your blanking plate the proper part or just a plate ? I tried a plate to start with on mine - but it leaked - just not enough width to seal against. So I ended up buying the proper blanking plate (ERC9884) that sits into the opening and uses the o-ring. Expensive... but worked 🙂 Quote Link to post Share on other sites
western 944 Posted February 22 Share Posted February 22 That's good new, cheers for the confirmation & photo. Quote Link to post Share on other sites
Anderzander 867 Posted February 22 Share Posted February 22 Ralph - were your broken housings split ? My first one had a crack in it that I didn’t see until it had pressurised oil pouring out ... Quote Link to post Share on other sites
western 944 Posted February 22 Share Posted February 22 Both have damage where the oil pressure switch screws in, one I did have the broken bit welded back on & fitted a helicoil but could not make it leak free, the other is intact but cracked at the same location, & it's spread open slightly, I can add 2 photos when home from work about 7.30pm. I think both could be welded up & redilled & threaded for the pressure switch. But haven't done any more with them yet, 1 Quote Link to post Share on other sites
markyboy 13 Posted February 23 Author Share Posted February 23 22 hours ago, Anderzander said: I took a mechanical oil pressure feed from there. Is your blanking plate the proper part or just a plate ? I tried a plate to start with on mine - but it leaked - just not enough width to seal against. So I ended up buying the proper blanking plate (ERC9884) that sits into the opening and uses the o-ring. Expensive... but worked 🙂 Anderzander, it's the correct plate and 'O' ring. As you say, expensive for what it is, but hopefully it will seal correctly. 1 Quote Link to post Share on other sites
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