Danozeman
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| posted on 18/5/09 at 09:04 PM |
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Anyone in the know of Rover k series engines?
Are the later coil pack heads the same as the earlier dizzy ones??
what is the difference between the 1.4 and 1.6 blocks? is the capacity made up with different size bores or different conrods and pistons??
I have a 1.6 with a shagged engine. 1.4's are plentiful but not 1.6's.
Dan
Built the purple peril!! Let the modifications begin!!
http://www.eastangliankitcars.co.uk
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omega0684
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| posted on 18/5/09 at 09:10 PM |
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stevec has a 1.8 turbo k series sat in his garage, brand new, he might sell it you for the right price, drop him a u2u, you never know, you might get
a steal!
[Edited on 18/5/09 by omega0684]
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nitram38
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| posted on 18/5/09 at 09:12 PM |
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Ask British Trident, but I think it is the length of the stroke that determines the cc.
From the outside the 1.6 and 1.4 blocks are the same ? The difference being the crank?
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locoboy
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| posted on 18/5/09 at 09:14 PM |
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quote:
Originally posted by nitram38
Ask British Trident, but I think it is the length of the stroke that determines the cc.
From the outside the 1.6 and 1.4 blocks are the same ? The difference being the crank?
Correct Martin.
As above British Trident is your man.
ATB
Locoboy
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Danozeman
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| posted on 18/5/09 at 09:16 PM |
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Also if i sling a 1.4 engine in it with 1.6 ecu etc will it run??
Dan
Built the purple peril!! Let the modifications begin!!
http://www.eastangliankitcars.co.uk
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StevieB
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| posted on 18/5/09 at 09:19 PM |
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I know the 1.6 and 1.8 engines are the same bar the crank, but not sure about the 1.8
I'd have though you'd be able to find a 1.8 just as easily as this capacity was used in more applications - mgf, elise, freelander etc.
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ironside
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| posted on 18/5/09 at 11:56 PM |
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Afaik the 1.4 is smaller bore (thicker liners) than the 1.6 and 1.8. The 1.8 is a stroked 1.6.
As has been said, they are all the same physical size on the outside so it would be very easy to change capacity from that point of view. Not so sure
on the ECU though.
[Edited on 18/5/09 by ironside]
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MikeRJ
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| posted on 19/5/09 at 08:09 AM |
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The distributor and coil packs heads are interchangeable, though the cam covers are obviously different. I helped my dad fit a late distributor head
to a 1.4 Rover 45 with a coilpack head a few weeks ago, and its running perfectly.
One thing to watch however is that two different types of timing belt tensioner were used on the K series, and they are not interchangeable without
drilling and tapping extra mounting points in the head. Worst case this just means buying the correct timing kit for the head you are fitting.
A 1.6 ECU might make the engine run, but it would very likely be overfueling at WOT. Also the ECU is matched to the trigger pattern in the flywheel,
and there are several different patterns used.
[Edited on 19/5/09 by MikeRJ]
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britishtrident
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| posted on 19/5/09 at 08:19 AM |
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This might help.
All early 90s onwards K series blocks are the same --- the liners pistons and cranks are different.
From late 1999 4 major changes were made
(1) Wider cam cam belt to extend interval between belt changes.
(2) Automatic timing chain tensioer was introduced -- cylinder head slightly modified to suit..
(3) Fully sequential injection with a cam phase sensor on the exhaust cam
(4) Ignition change to wasted spark system
Post 2001 The wasted spark system changed from twin coils mounted at the flywheel end to a pair of coil on plug coil packs. At the same time
the MAP and IAT sensors were combined and moved to the top of the inlet manifold abvove no 2 fuel injector.
All 1991 to 1999 Rover K 16 valve heads have the same part number
All post 1999 Rover K 16 heads have the same part number.
Any K series head from 1989 onwards can be fitted to any K series 16 alve engine --- but may need minor mods to suit cam belt tensioner.
Cams and cam covers need to be swapped to suit ignition system used.
Two types of sumps are used -- pressed tin -- avoid if possible as they leak.
The alloy sump can be fitted to any k series if the related parts are also swapped.
Rover Ignition and security ECUs are coded to the pattern of the reluctor ring on the flywheel ---- swaping engines without changing over the
flywheel reluctor will lead to imobiliser problems. Even if the rings are swapped over it is not unknown for the MEMS ecu to need recoded.
If you do the above a 1.4 engine will probably run OK a 1.6 ECU however make sure the correct injectors are used. (istr Blue grey for 1.6 &
normal 1.8, yellow for 1.4)
If using the 1.4 throttlebody make sure it is the type from the 104 ps engine not the 81 ps --- only difference between engines was the lower output
engine had a stop fitted on the throttle body to prevent it reaching full throttle.
[Edited on 19/5/09 by britishtrident]
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britishtrident
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| posted on 19/5/09 at 10:29 AM |
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quote:
Originally posted by MikeRJ
The distributor and coil packs heads are interchangeable, though the cam covers are obviously different. I helped my dad fit a late distributor head
to a 1.4 Rover 45 with a coilpack head a few weeks ago, and its running perfectly.
One thing to watch however is that two different types of timing belt tensioner were used on the K series, and they are not interchangeable without
drilling and tapping extra mounting points in the head. Worst case this just means buying the correct timing kit for the head you are fitting.
A 1.6 ECU might make the engine run, but it would very likely be overfueling at WOT. Also the ECU is matched to the trigger pattern in the flywheel,
and there are several different patterns used.
[Edited on 19/5/09 by MikeRJ]
Yes -- one thing to watch is to check if the exhaust cam in the older style head has a lug of metal on it to trigger the cam phase sensor.
Although the later MEMS 3 systems will quite happily without the signal from the cam phase sensor (although they may take very slightly longer to
start) if the signal isn't present the fuel injection won't run in fully sequential mode it reverts to semi-sequential, which at
low-medium rpm can cause slight more fuel consumption and slightly worsened emmissions.
[I] “ What use our work, Bennet, if we cannot care for those we love? .”
― From BBC TV/Amazon's Ripper Street.
[/I]
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MikeRJ
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| posted on 19/5/09 at 11:00 AM |
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quote:
Originally posted by britishtrident
Yes -- one thing to watch is to check if the exhaust cam in the older style head has a lug of metal on it to trigger the cam phase sensor.
Good point, we swapped the original cams and followers into the new (s/h) head.
Very interesting to know about the MEMS S though, very clever system. Does it throw a fault code if the cam phase signal is missing?
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