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 4.2 supercharged misfire on idle
friskydog

Post28th Apr 2022 7:04am
Forum: Technical (L322) · Replies: 47 · Views: 10993 · Subject: 4.2 supercharged misfire on idle
So to update a settlement has been agreed out of court and I need a new company to bring valve clearances back into tolerance.

Anyone know a reputable place in the Birmingham area?
 4.2 supercharged misfire on idle
friskydog

Post6th Mar 2022 9:57pm
Forum: Technical (L322) · Replies: 47 · Views: 10993 · Subject: 4.2 supercharged misfire on idle
Great url with lpg forum I will completely read soon. But sounds very very similar to my issue initially. Mine was 5k to do the engine rebuild. I had even sent them the valve clearances pre rebuild to ...
 4.2 supercharged misfire on idle
friskydog

Post6th Mar 2022 9:27pm
Forum: Technical (L322) · Replies: 47 · Views: 10993 · Subject: 4.2 supercharged misfire on idle
The rebuilders said compression was fine after the rebuild as it's one of the tests they check after. However after requesting said data they seem to have misplaced the testing data somehow.

Inter ...
 4.2 supercharged misfire on idle
friskydog

Post6th Mar 2022 8:53pm
Forum: Technical (L322) · Replies: 47 · Views: 10993 · Subject: 4.2 supercharged misfire on idle
Could these misfires be caused by valve clearances being way out of tolerance?
 4.2 supercharged misfire on idle
friskydog

Post6th Mar 2022 8:51pm
Forum: Technical (L322) · Replies: 47 · Views: 10993 · Subject: 4.2 supercharged misfire on idle
https://www.fullfatrr.com/gallery/albums/userpics/19655/normal_Screenshot%202022-03-06%2020.49.36~0.png
They only relapped the valves so dont believe any bucket or shim changes were made.

Please ...
 4.4 Jag and SC owners on LPG
friskydog

Post6th Mar 2022 8:34pm
Forum: LPG · Replies: 45 · Views: 25321 · Subject: 4.4 Jag and SC owners on LPG
This is the table I used for my clearances on my AJV8 4.2 2007 SC L322. It may help.

Recommendations for clearances according to LR documents.

INLET Clearance = 0.18 - 0.22

EXHAUST Clearance ...
 4.2 supercharged misfire on idle
friskydog

Post5th Mar 2022 10:42am
Forum: Technical (L322) · Replies: 47 · Views: 10993 · Subject: 4.2 supercharged misfire on idle
Yes but they won't offer a resolution to valve clearances.

I tried swapping plugs over and coil packs but still the same so surely its internals. So I will update when I have more info.
 4.2 supercharged misfire on idle
friskydog

Post4th Mar 2022 4:27pm
Forum: Technical (L322) · Replies: 47 · Views: 10993 · Subject: 4.2 supercharged misfire on idle
So misfires only on 1357 on one bank now after sorting air leaks on engine. However I have had it confirmed the valve clearance is further out of tolerance after engine rebuild. So also have had troub ...
 L322 2007 4.2 SC Timing Chain & Valve advice
friskydog

Post22nd Dec 2021 1:38am
Forum: Technical (L322) · Replies: 33 · Views: 5612 · Subject: L322 2007 4.2 SC Timing Chain & Valve advice
So I sent the car back to the rebuilders and they then gave me the car back still with air leaks, misfires and shorter clearances between the tappet and the cam shaft lobes.

How after a rebuild wo ...
 L322 2007 4.2 SC Timing Chain & Valve advice
friskydog

Post4th Nov 2021 9:16pm
Forum: Technical (L322) · Replies: 33 · Views: 5612 · Subject: L322 2007 4.2 SC Timing Chain & Valve advice
So I have had a complete engine rebuild at a cost of £4500. I decided to keep the car no matter what so just went for the build on the proviso I could get all valve clearances checked and were within ...
 4.2 supercharged misfire on idle
friskydog

Post12th Sep 2021 3:34pm
Forum: Technical (L322) · Replies: 47 · Views: 10993 · Subject: 4.2 supercharged misfire on idle
Thanks Gents for confirming the cylinder pattern. I can't thrash engine atm after engine rebuild for a bit. Apparently.
 4.2 supercharged misfire on idle
friskydog

Post10th Sep 2021 10:30pm
Forum: Technical (L322) · Replies: 47 · Views: 10993 · Subject: 4.2 supercharged misfire on idle
So mechanic checked the cats and sees nothing wrong with them apparently.

Misfires on every cylinder however mostly across 1357 which apparently isn't on the same bank on the Supercharged.

Bank ...
 4.2 supercharged misfire on idle
friskydog

Post7th Sep 2021 6:39am
Forum: Technical (L322) · Replies: 47 · Views: 10993 · Subject: 4.2 supercharged misfire on idle
Thanks for that nugget of info Dan I will be checking them tomorrow with mechanic for sure. Thumbs Up
 4.2 supercharged misfire on idle
friskydog

Post6th Sep 2021 9:16pm
Forum: Technical (L322) · Replies: 47 · Views: 10993 · Subject: 4.2 supercharged misfire on idle
Hey Dingg,

the misfire alerts havent come back after clearing errors for 250 miles now. So I wonder if it was a false positive. This P01074 code now seen is an historical one and one I had before e ...
 4.2 supercharged misfire on idle
friskydog

Post6th Sep 2021 8:51pm
Forum: Technical (L322) · Replies: 47 · Views: 10993 · Subject: 4.2 supercharged misfire on idle
Thanks again Haylands first thing we will check in that case. Thumbs Up
 
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