Hi all
Quick update
New comp tester gave the following results
Right bank dry test full throttle 90ish per cylinder on all cylinders
Left bank dry test full throttle 90/100 per cylinder on all cylinders.
Left bank wet test on one cylinder went up to 120
Left bank with rocket oededtsl shims removed compression completely lost.
All tests on newly honed bores new rings and freezing cold engine and outside temp at 2celcius.
Do you all think it can be conclude that whilst not great 90/100 is enough for the engine to start??
(In the meantime new plugs to go in tomorrow and see if it will start.)
V8 rebuilt no spark
Moderator: phpBB2 - Administrators
Re: V8 rebuilt no spark
Yes. Compression testing on a newly built engine cold would tell you if you'd forgotten to fit a piston, but not much else.
Hydraulic tappets can take some running time to adjust themselves fully too.
And trying to start a new engine with a carb which isn't correct for the engine is less than ideal too. Too many variables.
Hydraulic tappets can take some running time to adjust themselves fully too.
And trying to start a new engine with a carb which isn't correct for the engine is less than ideal too. Too many variables.
Dave
London SW
Rover SD1 VDP EFI
MegaSquirt2 V3
EDIS8
Tech Edge 2Y
London SW
Rover SD1 VDP EFI
MegaSquirt2 V3
EDIS8
Tech Edge 2Y
Re: V8 rebuilt no spark
Dave your right if it doesn’t fire with the new plugs I have s 1404 off a 3.9 which I know o be good in my mates garage I will borrow that and that will eliminate carbonation at least to get it started
Thanks for support
Thanks for support
Re: V8 rebuilt no spark
No further forward
Swapped carb and brand new plugs
Sounds like it’s trying to catch
Got a small back fire from exhaust
Lots of fuel vapour from crankcase breather
Battery gave up so oncharge pending setting fire to out in the morning
If anyone can rccommehd a Mobike mech who knows v8 I’m happy to chuck money at him to point out where I’m a muppet I’d be grateful
Thanks Phil
Swapped carb and brand new plugs
Sounds like it’s trying to catch
Got a small back fire from exhaust
Lots of fuel vapour from crankcase breather
Battery gave up so oncharge pending setting fire to out in the morning
If anyone can rccommehd a Mobike mech who knows v8 I’m happy to chuck money at him to point out where I’m a muppet I’d be grateful
Thanks Phil
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Re: V8 rebuilt no spark
Have you absolutely, positively, definitely checked you've got the right order on the plugs? It's an easy thing to overlook or assume is right, but only takes a couple of mins to check. If/when you do, assume it is wrong until you prove otherwise. I don't want to insult your intelligence, I just know the number of times I've gone looking for an esoteric problem when the solution was something simple and obvious in hindsight.
Re: V8 rebuilt no spark
Is there any way you can tow-start the car?
Chris.
Chris.
--
Series IIA 4.6 V8
R/R P38 4.6 V8
R/R L405 4.4 SDV8
Series IIA 4.6 V8
R/R P38 4.6 V8
R/R L405 4.4 SDV8