4.0 running/ revving question.
Discussion
After my glowing praise earlier the car was a bit unusual tonight. All was well, engine was good and exhaust was popping and banging away....more than usual and a bit louder too, but it didn't bother me. Anyway, I reach a stretch where I can rev it properly (the first time in approx 25 mins) after a bout of town driving where most was under 3500 rpm.
It spluttered at just over 4, almost as if it was hitting a limiter. At first I thought I must have revved harder than I intended so I repeated while watching the revs. Sure enough it didn't want to go over 4500?
Oil pressure fine, engine sounds fine, all seems to be in order. Earlier today I refuelled, could it be related, or is it something else? Under 4.5 it runs as normal but did pop more as I said earlier.
I can't go to check anything right now as it's at the garage 10 mins from home, but all suggestions will be investigated tomorrow.
Thanks in advance
It spluttered at just over 4, almost as if it was hitting a limiter. At first I thought I must have revved harder than I intended so I repeated while watching the revs. Sure enough it didn't want to go over 4500?
Oil pressure fine, engine sounds fine, all seems to be in order. Earlier today I refuelled, could it be related, or is it something else? Under 4.5 it runs as normal but did pop more as I said earlier.
I can't go to check anything right now as it's at the garage 10 mins from home, but all suggestions will be investigated tomorrow.
Thanks in advance
unless you have the ACT/smoothbore then just ignore that remark 
do you know the history of the fuel filter change interval?
Dont know if its any help Paul but my Griff 4.3 does this if I have left it for a couple of weeks then taken it out switched off when engine is at temperature then restart. It then feels like yours until I've properly warmed it up.
I have always put it down to the plugs slightly fouling then burning the crap off up to temp.
I never had the problem last year when I was using the car everyday.
I have always put it down to the plugs slightly fouling then burning the crap off up to temp.
I never had the problem last year when I was using the car everyday.
I had exactly that when I replaced the coil. New black and red one, from big name TVR parts supplier, for Chim. Would not rev past 4500 even with little load. felt like it hit a rev limiter. Fine below 4500ish.
Put old coil back on. Fine. New one back on. Not fine.
Bought new Bosch coil and ran fine. Odd that a new v8 chim coil could fail like that, but it did.
Odd thing was that the engine actually ran noticeably smoother below 3000 rpm on the rubbish black and red coil than on the new Bosch which is just a little less rough than my old one (also bosch).
Good luck
Put old coil back on. Fine. New one back on. Not fine.
Bought new Bosch coil and ran fine. Odd that a new v8 chim coil could fail like that, but it did.
Odd thing was that the engine actually ran noticeably smoother below 3000 rpm on the rubbish black and red coil than on the new Bosch which is just a little less rough than my old one (also bosch).
Good luck
Chim Chim Cheree said:
I had exactly that when I replaced the coil. New black and red one, from big name TVR parts supplier, for Chim. Would not rev past 4500 even with little load. felt like it hit a rev limiter. Fine below 4500ish.
Put old coil back on. Fine. New one back on. Not fine.
Bought new Bosch coil and ran fine. Odd that a new v8 chim coil could fail like that, but it did.
Odd thing was that the engine actually ran noticeably smoother below 3000 rpm on the rubbish black and red coil than on the new Bosch which is just a little less rough than my old one (also bosch).
Good luck
ello jon good to see you on here catch up soonPut old coil back on. Fine. New one back on. Not fine.
Bought new Bosch coil and ran fine. Odd that a new v8 chim coil could fail like that, but it did.
Odd thing was that the engine actually ran noticeably smoother below 3000 rpm on the rubbish black and red coil than on the new Bosch which is just a little less rough than my old one (also bosch).
Good luck
ian
Garlick,
Mine does this on occasion, I was watching the thread for some ideas of what to check when i had the time, long story short it happened this morning for the 8-9 miles to Band Q (living the high life), and was fine after the short stop there.
I havent checked inside the distributor yet, but my thought was condesation. It sat outside in the rain yesterday, under the car port last night but the car was still outside. On the few occassions its happend previously it does seem to clear after my generally short journeys (daily driver) and a restart.
I will be checking tomorrow to see if theres evidence of condensation, as well as distributor and rotor arm condition etc.
Mine does this on occasion, I was watching the thread for some ideas of what to check when i had the time, long story short it happened this morning for the 8-9 miles to Band Q (living the high life), and was fine after the short stop there.
I havent checked inside the distributor yet, but my thought was condesation. It sat outside in the rain yesterday, under the car port last night but the car was still outside. On the few occassions its happend previously it does seem to clear after my generally short journeys (daily driver) and a restart.
I will be checking tomorrow to see if theres evidence of condensation, as well as distributor and rotor arm condition etc.
Harrytsg said:
Garlick,
Mine does this on occasion, I was watching the thread for some ideas of what to check when i had the time, long story short it happened this morning for the 8-9 miles to Band Q (living the high life), and was fine after the short stop there.
I havent checked inside the distributor yet, but my thought was condesation. It sat outside in the rain yesterday, under the car port last night but the car was still outside. On the few occassions its happend previously it does seem to clear after my generally short journeys (daily driver) and a restart.
I will be checking tomorrow to see if theres evidence of condensation, as well as distributor and rotor arm condition etc.
To update my reply, I did check the distributor cap and there was no sign of condensation so ignore my thought there. I did clean the contact areas of the rotor arm while the cap was off, and I havent repeated the symptoms as yet.Mine does this on occasion, I was watching the thread for some ideas of what to check when i had the time, long story short it happened this morning for the 8-9 miles to Band Q (living the high life), and was fine after the short stop there.
I havent checked inside the distributor yet, but my thought was condesation. It sat outside in the rain yesterday, under the car port last night but the car was still outside. On the few occassions its happend previously it does seem to clear after my generally short journeys (daily driver) and a restart.
I will be checking tomorrow to see if theres evidence of condensation, as well as distributor and rotor arm condition etc.
So read into that what you will.
Hope you get yours sorted.
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