Impreza steering rack mod
Discussion
Are you talking about the supply from the TVR pump? It's not a banjo, at least not on mine. It's a straight fitting of some sort. Pirtek have my hoses at the moment.
Incremental progress here. Got the TVR rack out and test fitted the Scooby one. I'll need to nibble a bit out of the chassis brace for the LP hose, and I bent my long hard pipe wrong because I cocked up how the rack mounts by 90 degrees. On re-bending, pipe sheared. I didn't have the posh pipe bender from the office so had to buy a cheap one. Pissed off with myself because the cost of new pipes is 70 quid for the pair. Its almost worth buying another rack and cannibalising the pipes!
Found a load of pas fluid in the n/s dust boot, so end seal has gone on the original TVR rack. Justifies the job at least. 15k or so after it was rebuilt via Power.
Brackets etc in paint tonight and off to pirtek for the hoses and pipes tomorrow. Chassis clean and touch up, might get the rack in with a fair wind.
Incremental progress here. Got the TVR rack out and test fitted the Scooby one. I'll need to nibble a bit out of the chassis brace for the LP hose, and I bent my long hard pipe wrong because I cocked up how the rack mounts by 90 degrees. On re-bending, pipe sheared. I didn't have the posh pipe bender from the office so had to buy a cheap one. Pissed off with myself because the cost of new pipes is 70 quid for the pair. Its almost worth buying another rack and cannibalising the pipes!
Found a load of pas fluid in the n/s dust boot, so end seal has gone on the original TVR rack. Justifies the job at least. 15k or so after it was rebuilt via Power.
Brackets etc in paint tonight and off to pirtek for the hoses and pipes tomorrow. Chassis clean and touch up, might get the rack in with a fair wind.
2gins thanks for the clue, I am being a dope and trying to fit the hose the wrong way round! I bought a standard hose thinking the banjo was at the pump end and the screw fit was at the rack end, however it would seem that on the standard TVR rack the banjo is at the rack end. A visit to Pirtek is now on the cards, I should have done this in the first place.
I made up the hard pipes from the pinion housing to the rack from 1/4 copper pipe, and didnt use the original pipes. You are welcome to have these if they are of any use to you. the nuts on the fittings are not the best but should just about be OK. Let me know if any use to you.
I made up the hard pipes from the pinion housing to the rack from 1/4 copper pipe, and didnt use the original pipes. You are welcome to have these if they are of any use to you. the nuts on the fittings are not the best but should just about be OK. Let me know if any use to you.
No worries. I'm currently at Think Automotive in Sunbury. Pirtek can't make the pipes or find the right fittings. We have a solution in braided flex with hard ends at the right angles to keep it all out of the y piece etc. But if we get stuck it's good to hear there's another option!
kevd said:
for the adaptors into the Imprezza rack I used a company called JLS Motorsport 0121 525 5800, their website has all sorts of useful fittings. The part Nos are 791415 this is for the M14 adaptor (high presssure feed from pump) & 791615 for the M16 adaptor which is the low pressure return. The standard retun pipe has quite a large bore size of 1/2 inch, and the pipe is a push fit with Jubilee clip, so you will need some kind of adaptor to fit the hose to the 791615 adaptor
Top man kevd - called JLS today and they dispatched what they had in stock1 x 791615 (Needed 2 but they only had 1 in stock) - ordered extra 1 from fBay - https://www.ebay.co.uk/itm/360709155769
1 x 791415
1 x 239006BB (90 deg AN6 to 3/8 push on hose)
According to JLS's catalog page:
http://www.jlsmotorsport.com/catalogue.html
these fittings are available at Pirtek! Seems not all Pirtek employees know this though...mine certainly didn't. *Experiences may vary
Now it's just 1 x 115 cm high pressure AN6 hose
debaron said:
kevd said:
for the adaptors into the Imprezza rack I used a company called JLS Motorsport 0121 525 5800, their website has all sorts of useful fittings. The part Nos are 791415 this is for the M14 adaptor (high presssure feed from pump) & 791615 for the M16 adaptor which is the low pressure return. The standard retun pipe has quite a large bore size of 1/2 inch, and the pipe is a push fit with Jubilee clip, so you will need some kind of adaptor to fit the hose to the 791615 adaptor
Top man kevd - called JLS today and they dispatched what they had in stock1 x 791615 (Needed 2 but they only had 1 in stock) - ordered extra 1 from fBay - https://www.ebay.co.uk/itm/360709155769
1 x 791415
1 x 239006BB (90 deg AN6 to 3/8 push on hose)
According to JLS's catalog page:
http://www.jlsmotorsport.com/catalogue.html
these fittings are available at Pirtek! Seems not all Pirtek employees know this though...mine certainly didn't. *Experiences may vary
Now it's just 1 x 115 cm high pressure AN6 hose
debaron said:
Rats....
ok might machine the end and add copper washer instead. It's 'only' low pressure return
This is what Think Automotive have done with mine. Machined the end down to get a secure fit and sealed it with a copper crush washer, on the gounds it's LP return. We shall see.ok might machine the end and add copper washer instead. It's 'only' low pressure return
Belle427 said:
I added some loctite 542 hydraulic sealant to the threads for belt and braces, it’s just a thread sealant so does not hold like a thread lock.
I don't have any 542 and it's mail order only, so that's a no go unless I scrap re-assembly until next saturday, 10 days away. I have 243 which is a thread locker and sealant of 'medium bond strength', so could go with a smear of that on the copper washer, not the threads. Other options on the shelf are Elring gasket sealant (Saab cam cover) and VAG liquid sealant (Audi sump), Loctite 5920 copper/silicone gasket maker and sealant.It's not gone very well today.
Fitted the adapters to the rack and used some of the 5920 on the copper washer as it seemed the best stuff. Put the rack in the car, got one 40mm bolt in the o/s bracket and discovered there just ain't no way the other side is doing up - they need to be 50mm. Quick ride to Homebase, a selection of coated HT bolts but none in M8x50. EVERY time I go to Homebase they have everything else except what I want!
Then with the rack in more or less final position I noticed that the hour or so I spent on Monday nibbling away the chassis brace plate with a file wasn't nearly enough and there's no way the HP hose is going on without more modification. I basically need to remove most of the plate back to the chassis cross member for the first half inch or so. Not a problem with an angle grinder but there's no access is there. So it's either hours with a file (at least I'll be keeping nice and warm!) or some other mechanical solution. Do we reckon this sort of thing in a power drill will do the job? Drill's good for 1600 rpm.
https://www.toolstation.com/draper-mounted-grindin...
After that I got the new hoses installed from pump and to reservoir so at least the hydraulic side of things is going OK. It also looks like I can ditch the way the LP hose wraps through the suspension and rubs a hole in the chassis paint.
I might get a couple hrs friday AM but then it's game over until next weekend or cold dark evenings grovelling.
Fitted the adapters to the rack and used some of the 5920 on the copper washer as it seemed the best stuff. Put the rack in the car, got one 40mm bolt in the o/s bracket and discovered there just ain't no way the other side is doing up - they need to be 50mm. Quick ride to Homebase, a selection of coated HT bolts but none in M8x50. EVERY time I go to Homebase they have everything else except what I want!
Then with the rack in more or less final position I noticed that the hour or so I spent on Monday nibbling away the chassis brace plate with a file wasn't nearly enough and there's no way the HP hose is going on without more modification. I basically need to remove most of the plate back to the chassis cross member for the first half inch or so. Not a problem with an angle grinder but there's no access is there. So it's either hours with a file (at least I'll be keeping nice and warm!) or some other mechanical solution. Do we reckon this sort of thing in a power drill will do the job? Drill's good for 1600 rpm.
https://www.toolstation.com/draper-mounted-grindin...
After that I got the new hoses installed from pump and to reservoir so at least the hydraulic side of things is going OK. It also looks like I can ditch the way the LP hose wraps through the suspension and rubs a hole in the chassis paint.
I might get a couple hrs friday AM but then it's game over until next weekend or cold dark evenings grovelling.
Got an air compressor? then tape up that union and get to work with a die grinder and a tree carbide burr it will make notching that plate kids play , safety 1st safety glasses essential , note burr in shot not tree shaped 
............ Hoever I would wait for Phazed to comment on this he as carried out two of these conversions and may have an alternative solution , I cant see bigger picture from here so can only comment 
............ Hoever I would wait for Phazed to comment on this he as carried out two of these conversions and may have an alternative solution , I cant see bigger picture from here so can only comment Edited by Zener on Wednesday 19th February 15:52
This is where it got frustrating for me, I used a die grinder and carbide bit but these tools eat the air supply and I ended up burning out my old trusty compressor!
I finished it off with a carbide bit in a battery drill but this was next to hopeless as the speed wasn’t high enough.
It does help if the compressor has oil in it though!
Those grinding stones you linked too won’t help much, ask me how I know!
I have high tensile socket headed m8 bolts in work if you want some posted foc, I wouldn't use bolts from home base personally, maybe just for mock up purposes.
I finished it off with a carbide bit in a battery drill but this was next to hopeless as the speed wasn’t high enough.
It does help if the compressor has oil in it though!
Those grinding stones you linked too won’t help much, ask me how I know!
I have high tensile socket headed m8 bolts in work if you want some posted foc, I wouldn't use bolts from home base personally, maybe just for mock up purposes.
Edited by Belle427 on Wednesday 19th February 16:50
Edited by Belle427 on Wednesday 19th February 16:51
but carbide burrs are the b
ks and the good ones last ages I know cos I use them daily , they will go through case hardening on wheel bearings etc in short order Gassing Station | Chimaera | Top of Page | What's New | My Stuff