Rocketman Posted March 20 Report Share Posted March 20 I am going to fit an oil catch tank to the inner wing of my 3A. I will need to make one of these fittings to push into the hole in the side of the block with a AN10 thread on it. Not a problem to turn one on the lathe with a thread on but does anyone know the diameter of the hole in the block where it pushes into? I will run a second tube to a mounting on the side of the rocker cover using black braided nylon tubing with AN10 fittings. This will hopefully provide better breathing to the engine especially the top as that has a tiny hole in the cap and hopefully prevent extra oil being put onto the road. This set up should make a neat installation and nice little project for the weekend Quote Link to post Share on other sites
Hamish Posted March 20 Report Share Posted March 20 (edited) Hi I have just measured the original breather hole as mine had I was sure a 28mm copper plumbing pipe and elbow which worked very well fitted with a bit of mastic hope this helps. Actual is 28.34mm. With precision Aldi caliper Edited March 20 by Hamish Quote Link to post Share on other sites
BlueTR3A-5EKT Posted March 20 Report Share Posted March 20 4 hours ago, Rocketman said: I am going to fit an oil catch tank to the inner wing of my 3A. I will need to make one of these fittings to push into the hole in the side of the block with a AN10 thread on it. Not a problem to turn one on the lathe with a thread on but does anyone know the diameter of the hole in the block where it pushes into? I will run a second tube to a mounting on the side of the rocker cover using black braided nylon tubing with AN10 fittings. This will hopefully provide better breathing to the engine especially the top as that has a tiny hole in the cap and hopefully prevent extra oil being put onto the road. This set up should make a neat installation and nice little project for the weekend Does your engine currently have the snorkel type breather pipe fitted in the side of the block? If not be prepared for a bit of a game in removing the core plug that is in the hole that you want to place the breather in. Quote Link to post Share on other sites
Trumpy3 Posted March 20 Report Share Posted March 20 I turned up an aluminum elbow with an O ring to fit inside the block. It has a small flange on the outer surface against the block. I then taped a small (3mm) thread next to the block breather hole and after fitting the new elbow screwed in a short screw with a washer that worked with the flange to prevent the elbow coming out. The elbow was then secure but could be turned to any direction required. This has been in place for about 12 years now. I did this with the engine out so would be a bit hard with it installed. It may be a bit to understand exactly what I done from this description but I am down at the Melbourne F1 so cant take any pictures. Brian Quote Link to post Share on other sites
Rocketman Posted March 20 Author Report Share Posted March 20 Thanks for the replies. My engine does have a snorkel on at the moment so I will have to remove it then turn a piece on the lathe to make it work. I will post pictures when done Quote Link to post Share on other sites
Rocketman Posted April 29 Author Report Share Posted April 29 Well top breather hose fitted and bottom plug for the block made. The plug I made 1.125" diameter to fit into the hole in the block but just need an O ring to seal it and a retainer that I will make to stop it vibrating out. The plug I drilled and tapped 3/8 bsp (only because I have a set of taps that size) and screwed in an AN10 x 3/8 bsp fitting. The snorkel breather has been removed so I just need to fit it neatly then pipe up the fuel pressure regulator/filter I have also installed (I fitted this because the car now has an electric fuel pump) Quote Link to post Share on other sites
stuart Posted April 29 Report Share Posted April 29 3 hours ago, Rocketman said: Well top breather hose fitted and bottom plug for the block made. The plug I made 1.125" diameter to fit into the hole in the block but just need an O ring to seal it and a retainer that I will make to stop it vibrating out. The plug I drilled and tapped 3/8 bsp (only because I have a set of taps that size) and screwed in an AN10 x 3/8 bsp fitting. The snorkel breather has been removed so I just need to fit it neatly then pipe up the fuel pressure regulator/filter I have also installed (I fitted this because the car now has an electric fuel pump) Dont forget as you have an electric pump to fit a collision switch for safety. Stuart. Quote Link to post Share on other sites
Rocketman Posted April 29 Author Report Share Posted April 29 1 hour ago, stuart said: Dont forget as you have an electric pump to fit a collision switch for safety. Stuart. Thanks for that Stuart. Fortunately I have one in place under the dashboard Quote Link to post Share on other sites
John Morrison Posted April 30 Report Share Posted April 30 That's a really tidy installation, Well Done.Presumably the catch tank was off the shelf? John. Quote Link to post Share on other sites
Rocketman Posted April 30 Author Report Share Posted April 30 (edited) 2 hours ago, John Morrison said: That's a really tidy installation, Well Done.Presumably the catch tank was off the shelf? John. Yes and a lot cheaper than some for sale £16.50 Edited April 30 by Rocketman Quote Link to post Share on other sites
BlueTR3A-5EKT Posted April 30 Report Share Posted April 30 Is there a specified capacity for oil catch tanks if competing in UK? Hill climbs , sprints etc. Quote Link to post Share on other sites
Hamish Posted April 30 Report Share Posted April 30 6 hours ago, BlueTR3A-5EKT said: Is there a specified capacity for oil catch tanks if competing in UK? Hill climbs , sprints etc. No but most go with a litre circuits I think is 5 litres for all fluid catchment Quote Link to post Share on other sites
John Morrison Posted April 30 Report Share Posted April 30 7 hours ago, Rocketman said: Yes and a lot cheaper than some for sale £16.50 That is cheap-from where? John Quote Link to post Share on other sites
TR Rob Posted April 30 Report Share Posted April 30 Something like this I would imagine Quote Link to post Share on other sites
dpb Posted April 30 Report Share Posted April 30 On 4/29/2024 at 11:24 AM, stuart said: Dont forget as you have an electric pump to fit a collision switch for safety. Stuart. Hi Stuart Do you have any recommendations for a collision switch supplier? Cheers Dave Quote Link to post Share on other sites
BlueTR3A-5EKT Posted April 30 Report Share Posted April 30 I think there are 35 fluid ounces in a litre. At 5 ozs that is a fairly small capacity - sort of yogurt pot sized. Quote Link to post Share on other sites
Rocketman Posted April 30 Author Report Share Posted April 30 (edited) 2 hours ago, John Morrison said: That is cheap-from where? John https://www.ebay.co.uk/itm/184991113376 Edited April 30 by Rocketman Quote Link to post Share on other sites
Rocketman Posted April 30 Author Report Share Posted April 30 Bottom hose now fitted Quote Link to post Share on other sites
Rocketman Posted April 30 Author Report Share Posted April 30 Quote Link to post Share on other sites
harlequin Posted April 30 Report Share Posted April 30 2 hours ago, dpb said: Do you have any recommendations for a collision switch supplier? I'm sure Stuart will be along soon but in the meantime. I got mine from a scrapyard, it's from a Ford Focus and cost a massive £5 including a good length of the wiring harness with the matching plug. George Quote Link to post Share on other sites
John Morrison Posted April 30 Report Share Posted April 30 1 hour ago, Rocketman said: https://www.ebay.co.uk/itm/184991113376 Mnay Thanks. John. Quote Link to post Share on other sites
BlueTR3A-5EKT Posted April 30 Report Share Posted April 30 2 hours ago, Rocketman said: I just spotted your distributor timing is 180 degrees out compared to standard. If it does not confuse you or the person who services the car leave well alone. To Rectify. With the engine set on No 1 firing remove the housing and distributor. The drive gear drops in with the keyway starting at 90 degrees to the engine block. As it rotates into the cam gear the drive slot of the gear ends up pointing at NO1 spark plug.....unless whoever built the distributor put the offset drive dog on wrong. Refit the housing with as thick a gasket pack as came out as that sets the end float of the drive gear in its housing. Too tight and your cam and gear get damaged. This is a TR250 failure Quote Link to post Share on other sites
Rocketman Posted May 1 Author Report Share Posted May 1 9 hours ago, BlueTR3A-5EKT said: I just spotted your distributor timing is 180 degrees out compared to standard. If it does not confuse you or the person who services the car leave well alone. To Rectify. With the engine set on No 1 firing remove the housing and distributor. The drive gear drops in with the keyway starting at 90 degrees to the engine block. As it rotates into the cam gear the drive slot of the gear ends up pointing at NO1 spark plug.....unless whoever built the distributor put the offset drive dog on wrong. Refit the housing with as thick a gasket pack as came out as that sets the end float of the drive gear in its housing. Too tight and your cam and gear get damaged. This is a TR250 failure Thanks for that, I will check it. I did notice it was set 180 out but as yet not done anything about it. Its on a list of jobs I will attend to. Next job is piping the fuel pleasure/filter regulator up then re setting the carburettors Quote Link to post Share on other sites
Rocketman Posted May 1 Author Report Share Posted May 1 10 hours ago, BlueTR3A-5EKT said: I just spotted your distributor timing is 180 degrees out compared to standard. If it does not confuse you or the person who services the car leave well alone. To Rectify. With the engine set on No 1 firing remove the housing and distributor. The drive gear drops in with the keyway starting at 90 degrees to the engine block. As it rotates into the cam gear the drive slot of the gear ends up pointing at NO1 spark plug.....unless whoever built the distributor put the offset drive dog on wrong. Refit the housing with as thick a gasket pack as came out as that sets the end float of the drive gear in its housing. Too tight and your cam and gear get damaged. This is a TR250 failure Just curious as to the gasket mentioned as I haven't had the distributor out and cant see a gasket shown on the moss site Quote Link to post Share on other sites
BlueTR3A-5EKT Posted May 1 Report Share Posted May 1 (edited) . The clearance you want is detailed in the service manual and how to establish. Most recent engine I did needed 3 gaskets to get the setting. Item 5 here Edited May 1 by BlueTR3A-5EKT Quote Link to post Share on other sites
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