XJR Starting Problems
Discussion
Hi guys, need some quick help please - have mechanic working on the car now.
Car has run fine for last 6 months, then 4 weeks ago wouldn't fir - turns over.
Bought a new starter motor, thinking it was that, fitted today - but still won't fire.
Done search on here and we've now taken all plugs out, tapped them to get to 1.00mm (some were circa 2mm).
Put small amount of oil down the bores, refitted and tried starting .... nearly fired a few times (only when I held throttle down for a while then released it).
Was a small amount (few drops) in Air intake, but not excessive.
We are just taking plugs out to repeat process ....
Any ideas please?! Thanks
Car has run fine for last 6 months, then 4 weeks ago wouldn't fir - turns over.
Bought a new starter motor, thinking it was that, fitted today - but still won't fire.
Done search on here and we've now taken all plugs out, tapped them to get to 1.00mm (some were circa 2mm).
Put small amount of oil down the bores, refitted and tried starting .... nearly fired a few times (only when I held throttle down for a while then released it).
Was a small amount (few drops) in Air intake, but not excessive.
We are just taking plugs out to repeat process ....
Any ideas please?! Thanks
Hope you have just flooded engine. Start and turn off the engine without allowing the engine to complete its warm up cycle ? In this case you have washed the oil layer from the bores hence the advice add oil but to start you must keep the throttle on the floor until it fires, releasing early switches on the pumps and refloods. We assume you have checked for a spark ?
If it is a V8 and Nikasil, did you test the blow by before purchase ? Nikasil failure will eventually result in the inability to start but is usually characterised by problems of starting long before a no start situation. Oil in the breater pipe is also a sign
Be warned , many dealers and Jaguar techs will conclude Nikasil and recommend replacement engine without full investigation. Problems with Nikasil are rare now as Low Sulphur petrol has been exclusively available since 2000 so all damaged occurred prior to 2000. Is your car a low mileage ? Or very high ? Nikasil linings are very thin, running the engine without oil in the bores (after a flood) may be enogh to finish off a perfectly good Nikasil engine that has some prior damage.
If it is a V8 and Nikasil, did you test the blow by before purchase ? Nikasil failure will eventually result in the inability to start but is usually characterised by problems of starting long before a no start situation. Oil in the breater pipe is also a sign
Be warned , many dealers and Jaguar techs will conclude Nikasil and recommend replacement engine without full investigation. Problems with Nikasil are rare now as Low Sulphur petrol has been exclusively available since 2000 so all damaged occurred prior to 2000. Is your car a low mileage ? Or very high ? Nikasil linings are very thin, running the engine without oil in the bores (after a flood) may be enogh to finish off a perfectly good Nikasil engine that has some prior damage.
Gassing Station | Jaguar | Top of Page | What's New | My Stuff