Hi everyone I've had a small but persistent oil leak from the car, so thought that whilst doing its annual oil and filter, I'd try and get to the bottom of things... Turns out the leak was in the small line from the filter housing to the sump - a broken jubilee clip. Now replaced and hopefully that should sort the leak. However, whilst I was there and the car had no oil in it..... I decided to pull the big oil lines and have them rebuilt, as they were caked in crud and approaching 30 years old...
You can clearly see the connections are purely crimped onto the fittings, so the approach is to cut the old outer crimp sleeve off, attach new hose over the old barb and then put a new crimp in place. They’re unidirectional, so easily done Image Unavailable, Please Login Image Unavailable, Please Login
The only thing exception is the mid tank to bottom of oil rad hose. This has to line up so I’ve marked the positioning. Note that the original fitting threads into the hose and the ferrule, however the ferrule is again only crimped onto the hose itself. Image Unavailable, Please Login
That just leaves the tricky short hose which is a bugger to reach. I may just leave that until the engine next comes out for belts... Oh, and the long oil line needs a chuffing big spanner (I used a 50mm adjustable). The rest are just 32/36mm. I'm going to try and get the hose shop to take pictures of the disassembly and reassembly process, and (if I can) will post them here...
That swivel line (top hose in the pic of 3 you posted) leaked at the swivel point on mine, so watch out for that. I believe it was the root cause that ended up catching my car on fire at VIR.
The end fitting to the bottom of the tank was quite pitted and had been previously repaired (still worked fine) but the hose shop made up a brand new replacement fitting. You can also clearly see the slightly odd threaded ferrule on the old lines, however it’s still just the crimp holding it onto the hose… Image Unavailable, Please Login Image Unavailable, Please Login Image Unavailable, Please Login Image Unavailable, Please Login
New pipes installed. The only comment I’d make is that the lengths on the short pipes are quite critical as, being new pipes with springs inside, there’s very little flex. Had to shorten the top one by 18mm, but then everything went together just fine. Image Unavailable, Please Login Image Unavailable, Please Login
The shop that did the work was Spectrum Hose (Wycombe, UK) and total cost was about £450, of which the 2 small hoses were about £65 each and the big one about £100 (longer). The rest was the cost of making up a replacement end piece… also worth checking the return line from the filter on the other side, as one of my jubilee clamps was allowing some weepage… the little hose from the tank to the block can wait until next engine out…
I forgot to post to remind you that the shop MUST be reminded to reproduce the length of the hose exactly as the factory ones or it is near impossible to fit them in certain places. The large swiveling one at the bottom also needs to have the clocking of the metal pipe to be close to the original in order to make it fit.
Well, its back together, run up to temp and pressure and so far, its bone dry. Huzzah! Time to enjoy the 1 day of warm dry weather in the UK...
That’s a great price. I bought some pre owned ones and Helms at Scuderia Rampante did them for like $2k. I might send my old set to your guys and have them rebuilt. Can you pass along contact info pls?
Other than a Ferrari dealer, SR is one of the most expensive places to get things done. Although, I am told Mr. Helms and associates are exceedingly nice people.
