What's the best way at home with limited tools to flatern the surface on my turbo elboe as its leaking. Cgb wouldn't sell me the gasket as my t25 it is a tomcat.. Flat belt sander? Doit by hand? The wench has took the car so I can't take it anywhere..
Belt sander in a vice, a pair of decent gloves and take it easy.
Not the best way but itd be enough to get you out of trouble.
I thought the tomcat was a T25 ???
It is but on the 5 it misses one bolt which I did tell him but he wouldn't sell me it.. I know it misses one bolt.. He just didn't want any come backs I guess even though I know it's not a straight fit..
Buy a gasket off ebay for it, or a belt sander or file
So gave up for today bored of cleaning I'm not a shiney guy.. Got the head gasket my old one had the red strip this new one has a blue strip is that correct? Got new bolts new water gaskets new refurbed carb with standard jets on the way oil filter and oil and water coolant should be hear tomorrow.. Sunday it's rebuild time.. Just a dam shame Iv missed bluntys day.. Always next time.. Atleast I know how to change the head gasket as well now.. In four months I have now done EVERYTHING to this 5..grooved Rear discs and pads next then get it set up properly for18 or 20psi.. I loved it too much to have less then I'm leaving it in the garage until next event..
:-) will be running Sunday just let me know what time and will pop down with the torque wrench
Two hrs making my t25 bracket fit correctlynow to start building my head back up
but my backs killing me
should be out boosting not this
oh and my mrs now hates me
So I gave up today.. Ready to fit the head when the bolts arrive tomorrow.. What's the torq for the head bolts guys??
i do mine to 75nm
Bolts are hereso the new carb says it has 1.2 jets in what boost are the good for? I want to be running 18 should talk to me what's needed?
Well thanks to r5turboron for coming over and putting my head back on for me.. Great help and much appreciated.. Another great helpfull member.. Tommorr put the turbo back on pipe her flush her out then
Your welcome mate hopefully get mine running at the weekend :-)
ITS ALIVE!
So after all that it was a washer dropped in there.. That didn't need to happen £150 that could of been spent elsewhere.. Boosting in the sun tommorow.. Happy days..
boost
So Iv put a standard carb on now with 1.2 jets and so I'm running 20psi I tried to read my AFR. On tick over it reads 14 to low 14s driving 13s low boost 12s high bossys 13s so do I drill out to 1.3? Do we have a step by step? Obviously no more boost untill this is done.. Cheers
You want to listen for det now the head has been skimmed mate...try 1.3mm 2nd, if you need more fuel make the air corrector smaller
It runs sweet as matey.. How would detting sound? It pulls like a train still still impressed with the t25 power but I know the AFR is the key to long life.. Cheers
It can still det even when the afr's are good, like brigsy says you need to listen for it properly.
I would describe it as someone ruffling a packet of crisps under the bonnet. You need a very keen ear to listen for it when without a stethoscope/det cans.
I use a cheap mechanics stethoscope bolted to the front of the block, just bend the rod round a bolt
Then using 6mm nylon hardpipe run it into the cockpit even with a steth you have to listen out for it.
Anyone know the size of the sump washer? Mines a leaking?
Its a crush washer. Replace everytime after using .
Indeed, I keep a stock of em. Its a copper ring with a rubber insert I think. Available from all decent accessory shops, and HalfordsOriginally Posted by andybond
Next epic in my not so successfull ownership of a 5.. Got no bloody turbo now.. Iv replaced all boost hoses with different ones and still no boost. This turbo has only done around 500 miles.. Any ideas no obvious leaks the shafts move around when revved no oil loss.. It makes a slight wereing noise then stops but no boost at all.. Any ideas.. Knew I should of bought a cossie :-)
No ideas?
Cracked rear housing?
Nope turbo seems fine it's baffled me Iv had everything off to all day looked over everything no obvious blowing no noises and runs fine as a 1.4 it's done me..
I had the turbo all the way off the car checked it back and front the only thing I didn't do was take it apart.. It really has blown my mind..
Iv re built the carb this weekend and I went up the road after it boosted fine I went up the bypass it boosted fine then back down the bypass no boost.. Could it be anything todo with the carb? Also how come the pipe turbo side on the carb pull the top 6mm pipe off the car runs lumpy the one that gos to the actuator. But the one to the aei unit when you pull that one off it runs normal? I even to the actuator pipe off and went for a run and still no boost.. It's ever since Iv done the carb I even took that back apart and all that looked fine.. Baffled
I think I'm just going to have to rip it apart yet again tommorow then spread it out look over everything again and if nothing found.. Burn the mucking thing it's a pain in my arse
are you sure there is no air leak anywhere? if it was boosting fine before i doubt it is an issue with the carb.
are all the pipes and hoses connected correctly?
We swooped all the pipes over with known good ones even changed the lobster as I mensioned how can I disconnect the actuator and still nothing? Very strange..
Just to make sure I'm not going daft. On the flywheel side of the carb the 6mm pipe on the brass tube gos to the actuator and the lowest one gos to the aei yes?
Yep pipes go as described bud.
So I was just informed that there should be NO play in the new turbines!! Well there's a mm each side in the exchaust side I'm thinking the new t25 is knackerd? GUTTED
1mm each side of turbo is fine its when the turbines pushes backwards and forwards id be worried about it. did you put the actuator bracket on properly as the last time you came to me it was held on by one bolt and when you hit boost the guage moved very slow and the actuator bracket was bending.
All bolted correctly two bolts in but no boost at all. I saw the blades moving but I didn't rev the nuts off it stood still. When I drive it Dosnt come in at all.. Worked fine yesterday nothing today.. Iv had an offer of another turbo to try first before taking this one back. I have checked everything else changed all pipes back to standard ones and also changed from pace intercooller to standard and still nothing
have you tried taking top lobster of and look down the carb and give it a bit of throttle see if any fuel sprays out the emulsion tube down the carb throat.
I haven't but what would that do?
turbos even completely goosed still produces pressure albeiit not as well. for a turbo to not produce any pressure it would have to be masssssssssssssssively screwed. chances are the actuators screwed. how easy is it to move the actuator rod? it should be pretty dificult..... if its a stronger actuator then you should really struggle moving it.
It's a -31 actuator and it's tough to move it Iv blown into it and can't budge it. Iv pulled it and it's stiff. I disconnected it and still nothing. It's bugging mate
boost leak, choke flap not returned to correct position?
If theres no obvious boost leaks & wastegate is still on id take the turbo off and check it out.
In theory it can only be massive boost leak, you would hear a whistling though, wastegate popped off actuator, turbine blades are jammed for some reason stopping it from spinning or the exhaust turbine has come off. When my exhaust turbine sheared off it smoked like a mofo though.
Right im going to strip this car once more then it's matches and petrol for it
So if I put my hand on the turbo to intercooller exit it should blow my hand off of it with pressure that's the only thing I didn't try really I stripped it down three times yesterday..
That's it I give up in ripping off the turbo signs it's now a campus.. Iv stripped it four times all the exchaust now has gaskets and paste so they defo are not leaking Iv blown down the vac pipes and nothing escapes.. The beast way I can discernible it is it sounds like an owl not a whistle.. The turbo has no cracks no oil no real movement.. It's done me!! Petrol regulator? Iv haven't got a scooby dooooo anymore I really haven't..
So let me get this right. Rebuilt all engine ok, test drive went ok with boost achieved? Stripped and cleaned carb, road test with boost initially then none? Sounds like the engine isn't creating enough exhaust to build boost? Does it go well just minis boost or does it feel really flat? Seems odd that it was ok initially then nothing. Does it feel like it want to boost but just holds back? Could be fuel pump not pushing enough fuel.
it basiclly runs sweet as its the best its been ever all new gaskets everywere. i even took the clocks out and checked all the boost pipes in the dash to no avail.. there is a little push when you drive but the boost needle dosnt even budge. drove up the road and all i can say is i must of looked a **** as i had my head hanging out the window listening and it definatley sounds like an owl not a whistle and i think its from drivers side but then again sound travels... bugging
Are you running a dump valve? Wastegate stuck open? Take the actuator arm off wastegate pivot and see if it moves on the turbo, could have sheared? Do you have another actuator to try?
Try another turbo on, its definitely not fuel related or minor boost leaks. You would still make boost with a minor leak and ****e fuelling. I bet the turbo has been damaged when the debris went out the exhaust and bent the shaft slightly!?
how do i test the actuator for leaks? i just drove to work and now it sounds different. penny is fine turbines are fine
Attach a foot pump to it and pump away. you should see it move and stay in position after say about 12-15 PSi
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