Discussion
Well after trying to create some time to get the Cerb down to Joolz to have some cam timing, mapping and a 6k done I've given in for the moment as I just can't make enough time. So, I have bought a'service kit' from Racetech. I went for the 12k one as their isn't much difference price wise and my air filter was looking fairly dirty. I have also got myself new rear pads (Mintex) and new anti rattle plates as mine were getting noisy end of summer. They had a 10% off deal so worked out fairly good price wise. Picked up 8 litres of Valvoline VR1 5w50 full synthetic from Opie and again found a discount code (10%) and free delivery if over £60 so that came in at £71 and pennies delivered which leaves me plenty for top-up if needed.
Of course it's now trying to snow up here, so all the bits are looking very pretty in boxes in the boot......
Sticky.
Of course it's now trying to snow up here, so all the bits are looking very pretty in boxes in the boot......
Sticky.
Well finally had time this weekend to do the service, plugs, oil, filters (air, oil, fuel), new rear pads and anti-rattle plates, lubed up all the hinges etc. Got it all stuck back together this afternoon, put some tax on it and.....bugger.......idling at over 2k or higher as it heated up....
Took the cover back off, checked throttle linkage bar and there seemed to be a small movement to feel fully closed. Adjusted the bar slightly, started up and very lumpy. Again as it warmed revs started to rise too high. Now thinking TP's? I have two from the bulk buy but don't have the software to reset (yet!).
Does this seem the correct direction checking wise or any better thoughts? Also, I am correct in thinking that the throttle cable when it wraps around the pulley for the throttle bar just sits into the groove with the piton wedged into that groove or is there a hidden something I'm missing?
First time it's stitched me up.....
Cheers
Sticky
Took the cover back off, checked throttle linkage bar and there seemed to be a small movement to feel fully closed. Adjusted the bar slightly, started up and very lumpy. Again as it warmed revs started to rise too high. Now thinking TP's? I have two from the bulk buy but don't have the software to reset (yet!).
Does this seem the correct direction checking wise or any better thoughts? Also, I am correct in thinking that the throttle cable when it wraps around the pulley for the throttle bar just sits into the groove with the piton wedged into that groove or is there a hidden something I'm missing?
First time it's stitched me up.....
Cheers
Sticky
If you took note of what you adjusted on the link bar and by how many turns, put it back. Remove the throttle cable incase somehow thats holding the throttles open, check for any loose vacuum hoses as an air leak would cause your issues. I'm sure you'll have had the air boxes off so get them off again and check that some of the sealing foam hasn't unstuck. If it has it could well be jamming a throttle slightly open.
I've got a 4.2 setup so somewhat different, but theres 3 vacuum hoses linked to the charcoal canister in the rear wheel arch for the purpose of sucking fumes out of the canister. If 1 of them was to come loose it can raise the idle rpm as it's all extra air going into the throttle bodies.
In general, leaks before the throttle butterflies are not going to cause you this issues, but leaks after will.
Beyond that you'll need the software to check what's going on.
In general, leaks before the throttle butterflies are not going to cause you this issues, but leaks after will.
Beyond that you'll need the software to check what's going on.
Edited by CerbWill on Monday 22 April 20:40
Not been able to get under the car yet this week to check the vacuum , but Son No. 1 came up trumps finding his old Nexus 7 in a box in the attic. It took all night to charge up (!) but seems to be working after a full reset & update which is a result. Have downloaded the RS app and am waiting on the suggested cables from the 'Zon to arrive so will hopefully be able to log into the ecu soon without cocking anything else up.......
Cheers
Cheers
You know when you do something monumentally thick and everything goes to cock, but at the same time you also kinda got away with it? Well it was my turn..........**
Got back under the car in the pouring rain late yesterday, got into the vac pipes, checked the canister etc. All good, hmmm. Something about the throttle action last weekend has been bugging me. The fact that its well lubed, clean but didn't want to close properly like there was maybe something in the way...
Remove silicone inlets and the second to last reveals, yes, the scrunched up bit of kitchen towel I'd put in each TB so I couldn't drop anything down them....
Should've listened to big Ed, count 'em in, count 'em out again. So, reset throttle linkage bar back to where it was, started her up and and a lovely 950 rpm idle. Hate to think the outcome if the paper hadn't been jammed in there and it had been swallowed down so jammy doesn't cover it.
Went for a wee first drive this morning which is the first in over 6 months, all good and I'd forgotten just how quick it is!
Got back under the car in the pouring rain late yesterday, got into the vac pipes, checked the canister etc. All good, hmmm. Something about the throttle action last weekend has been bugging me. The fact that its well lubed, clean but didn't want to close properly like there was maybe something in the way...
Remove silicone inlets and the second to last reveals, yes, the scrunched up bit of kitchen towel I'd put in each TB so I couldn't drop anything down them....
Should've listened to big Ed, count 'em in, count 'em out again. So, reset throttle linkage bar back to where it was, started her up and and a lovely 950 rpm idle. Hate to think the outcome if the paper hadn't been jammed in there and it had been swallowed down so jammy doesn't cover it.
Went for a wee first drive this morning which is the first in over 6 months, all good and I'd forgotten just how quick it is!
- ...be gentle......
Well after last post something still wasn't right. There was a gaping hole in the power delivery around 1500rpm. Things started to sound out of balance too. Started phasing with the throttle bar but one side was seized solid. Trying freeing it up and of course it sheared off....
I managed to source a 4.5 bar and adjusters from Powers and bought a syncrometer. Spent many hours impressing the neighbours with trying to reset. Eventually got the banks balance on the synchro of around 5.5, got the idle around 1000 and the TP's around the 15 mark. It was starting to sound like a Cerb again. Took it round the block very gently and just as I was starting to congratulate myself it seemed to 'reset' and turned into a bucking bronco....
After (a lot) of swearing and pricing to rent a trailer to maybe take to Joolz or HHc I managed to get a hold of Barry at TVR Ecosse. It turns out his workshop is about 10 mins away!!! He was very helpful on the phone and agreed to look at the mess I'd caused...
Handily he experienced the reset I had and was able to work around it believing it to be a TP/wiring issue. Collected car yesterday, went for a drive and all is well once more, Happy Days! So shout out for Barry, very helpful, kept me up to date with things over the few weeks he had it and he did a few wee daft jobs too. If you are in Scotland he is worth searching out.
Sticky.
I managed to source a 4.5 bar and adjusters from Powers and bought a syncrometer. Spent many hours impressing the neighbours with trying to reset. Eventually got the banks balance on the synchro of around 5.5, got the idle around 1000 and the TP's around the 15 mark. It was starting to sound like a Cerb again. Took it round the block very gently and just as I was starting to congratulate myself it seemed to 'reset' and turned into a bucking bronco....
After (a lot) of swearing and pricing to rent a trailer to maybe take to Joolz or HHc I managed to get a hold of Barry at TVR Ecosse. It turns out his workshop is about 10 mins away!!! He was very helpful on the phone and agreed to look at the mess I'd caused...
Handily he experienced the reset I had and was able to work around it believing it to be a TP/wiring issue. Collected car yesterday, went for a drive and all is well once more, Happy Days! So shout out for Barry, very helpful, kept me up to date with things over the few weeks he had it and he did a few wee daft jobs too. If you are in Scotland he is worth searching out.
Sticky.
spitfire4v8 said:
Byker28i said:
I've had one throttle pot fail and have random input then fail with maximum input, interesting on the M4, with half an engine trying to race away.
Luckily you can disconnect a throttle pot and the ecu uses the other
They do like to keep you on your toes! Luckily you can disconnect a throttle pot and the ecu uses the other
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