Puglet1 Posted June 21, 2023 Report Share Posted June 21, 2023 How can a simple task become so confusing? I have removed my old style oil filter which also has a oil cooler adapter fitted. As you can see in the photo below there is a “squarish” shaped O ring in a circular recess. Is this correct? If not does anyone have any suggestions? My next concern is with the filter housing. Should it have a small seal between the housing and the bolt head? (There isn’t an external seal on mine) The one on my car looks like a nut on the outside but I am unable to undo it from a long stud that is inside of the filter. It also appears to have either a seal or fibre washer on the inside which I cannot access as the internal studding also will not separate. I have attached photos hoping that someone has come across this concern before. Link to comment Share on other sites More sharing options...
johny Posted June 22, 2023 Report Share Posted June 22, 2023 The free to download workshop manual has a sectioned diagram of the filter housing. Although not exactly the same as yours it shows a seal up inside the head of the fixing bolt plus the misshapen o ring looks as if it has to seal against the block. On yours both of these look like they should be replaced and indeed I think a flat section rubber washer of the right thickness would be better in place of the o ring... Link to comment Share on other sites More sharing options...
68vitesse Posted June 22, 2023 Report Share Posted June 22, 2023 Item 3 available from usual suspects, or was last time I wanted one. Regards Paul Link to comment Share on other sites More sharing options...
johny Posted June 22, 2023 Report Share Posted June 22, 2023 of course I reckon that lump on the bolt in the photos is an extender to allow for the increased depth of the assembly with the oil cooler take off... The other thing to ask is if the oil cooler is really necessary - does its thermostat actually open to allow cooling of the oil? Always makes me a bit nervous the idea of taking oil outside of the engine in hoses etc🤔 Link to comment Share on other sites More sharing options...
Pete Lewis Posted June 22, 2023 Report Share Posted June 22, 2023 just to add have a careful look at the head of the bolt im sure from memory it is rececessed to hold and 'hide' its sealing washer never found an easy way to replace them hateful things Pete Link to comment Share on other sites More sharing options...
johny Posted June 22, 2023 Report Share Posted June 22, 2023 Thats what I thought Pete and what the manual shows but as weve seen before theres two types of original filter holders and as per Pauls diagram in this one the seal sits in a recess in the top of the case and you can just see it in the photo... Link to comment Share on other sites More sharing options...
Pete Lewis Posted June 22, 2023 Report Share Posted June 22, 2023 yes still got brain fog from hospital etc you drag ideas out the backroom but cant pull anything together any more , will be pleased when im back on all 6 Ha ! Pete Link to comment Share on other sites More sharing options...
Puglet1 Posted June 22, 2023 Author Report Share Posted June 22, 2023 Pete L, johny, and 68vitesse. Thank you all for your help and suggestions. I will get back to it later. Thinking about it, I have nothing to lose by heating up the extension before attempting to undo it again. Pete. Link to comment Share on other sites More sharing options...
Pete Lewis Posted June 22, 2023 Report Share Posted June 22, 2023 maybe its time to raise the stakes to Gorilla mode ,it has to unscrew .........just the more you grip it in a vice the more you clamp the thread a decent stud extractor on the extension might help Pete 1 Link to comment Share on other sites More sharing options...
johny Posted June 22, 2023 Report Share Posted June 22, 2023 13 minutes ago, Puglet1 said: Thinking about it, I have nothing to lose by heating up the extension before attempting to undo it again. I would have though decent stilsons best to undo the extension piece. The jaws should bite into it as it cant be hardened and not crush it like a vice might... Link to comment Share on other sites More sharing options...
Puglet1 Posted June 22, 2023 Author Report Share Posted June 22, 2023 The plot thickens! I applied heat to the nut on the outside of the housing thinking it would screw off. It looks like it could have been brazed on. I am now going down the route of trying to get a second hand canister. 🤞 Pete. Link to comment Share on other sites More sharing options...
johny Posted June 22, 2023 Report Share Posted June 22, 2023 I wonder if we're talking about the same bits? You have a bolt, item 2 in Pauls diagram, and onto the threaded end of that an extender sleeve has been screwed so the extra thickness of the oil cooler adaptor can be accomodated. If you get a stilson onto the sleeve and a spanner onto the bolt head they should unscrew... Link to comment Share on other sites More sharing options...
Puglet1 Posted June 22, 2023 Author Report Share Posted June 22, 2023 Hi johny. Definitely not as described in Pauls diagram. I shall attach more photos. As you can see , the canister had a nut head attached but when I heated it - it came off and was not threaded to the post. I have now applied heat to the oil cooler Extender and finally managed to remove it. I think the threads on the original bolt explains why I couldn’t get it undone with stilsons in the vice. Thankfully, it looks like the threads inside the Extender are salvageable. Link to comment Share on other sites More sharing options...
johny Posted June 22, 2023 Report Share Posted June 22, 2023 but why did the head of the bolt have to come off? Surely once the extender is undone the bolt will pull out as per the diagram? Link to comment Share on other sites More sharing options...
Puglet1 Posted June 22, 2023 Author Report Share Posted June 22, 2023 14 minutes ago, johny said: but why did the head of the bolt have to come off? Surely once the extender is undone the bolt will pull out as per the diagram? I initially tried to undo the extender but as you can see by the state of the bolt- it was seized solid. My immediate thought was to undo the outer nut and replace the small seal. Unfortunately when the nut came off it had no thread inside of it (zoom in on the photo to see what I mean) so I guess it was brazed on. At this stage my focus was to remove the extender from the bolt. To achieve this, it needed the full length of the bolt being clamped in the vice, Oxy Acetylene used on the extender, Plus excessive force for the full length of the thread until it finally came off. Link to comment Share on other sites More sharing options...
johny Posted June 22, 2023 Report Share Posted June 22, 2023 wow surprising when its been immersed in oil the whole time! And yes I guess the head was brazed on because it would be easier to do that than machine a large bar - the flange is probably brazed on the same. I take it after all this your doing away with the cooler take off adaptor? Link to comment Share on other sites More sharing options...
Pete Lewis Posted June 22, 2023 Report Share Posted June 22, 2023 maybe time to fit a spin on kit ????? Pete Link to comment Share on other sites More sharing options...
Puglet1 Posted June 22, 2023 Author Report Share Posted June 22, 2023 Johny. I shall re-tap the thread inside of the extender and if ok I will source an O ring and keep the adapter. This is based on having really good oil pressure at the moment so the cooler doesn’t seem to have done any harm. Link to comment Share on other sites More sharing options...
Puglet1 Posted June 22, 2023 Author Report Share Posted June 22, 2023 Pete L. I looked at fitting a spin on unit (oil cooler type) but wasn’t happy with various clearances so have sent it back to the supplier. Link to comment Share on other sites More sharing options...
Puglet1 Posted June 22, 2023 Author Report Share Posted June 22, 2023 Managed to source a 2nd hand filter canister from Mick Dolphin 👍 Link to comment Share on other sites More sharing options...
johny Posted June 22, 2023 Report Share Posted June 22, 2023 15 minutes ago, Puglet1 said: I shall re-tap the thread inside of the extender and if ok I will source an O ring and keep the adapter. This is based on having really good oil pressure at the moment so the cooler doesn’t seem to have done any harm. ok but I recommend checking the thermostat is actually working as like any wax operated device they dont last forever plus of course a cooler does cause a certain reduction in your oil pressure... Link to comment Share on other sites More sharing options...
Puglet1 Posted June 22, 2023 Author Report Share Posted June 22, 2023 So. Maybe I am going down the wrong route with my decision. What do you guys have on your cars? Oil coolers? Spin on filters? Is there plenty of clearance when fitting a non oil cooler spin on adapter? Pete. Link to comment Share on other sites More sharing options...
Paul H Posted June 22, 2023 Report Share Posted June 22, 2023 9 minutes ago, Puglet1 said: So. Maybe I am going down the wrong route with my decision. What do you guys have on your cars? Oil coolers? Spin on filters? Is there plenty of clearance when fitting a non oil cooler spin on adapter? Pete. Mk2 Vitesse , spin on filter , no oil Cooler Paul Link to comment Share on other sites More sharing options...
Puglet1 Posted June 22, 2023 Author Report Share Posted June 22, 2023 58 minutes ago, Paul H said: Mk2 Vitesse , spin on filter , no oil Cooler Paul Thanks Paul. Is there plenty of clearance between the brake pipe, Oil pressure release valve, oil pressure switch and pressure pipe to gauge? Is it easy to spin the filter off without any tools? Do you have any photos of it on car? Pete. Link to comment Share on other sites More sharing options...
johny Posted June 22, 2023 Report Share Posted June 22, 2023 Same on my mk1 but cant say a filter change is a piece of cake as I have got it in the most downward position possible. I have to thread on a strap type filter clamp to get it undone and theres usually a little oil spilt although much less than I imagine would be with the original set up... Link to comment Share on other sites More sharing options...
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