You learn something new every day
Posted: Sun Jul 17, 2022 2:05 pm
Afternoon all,
So I have been experiencing a 'rattle' from the car under acceleration for a couple of weeks, at first I thought she was pinking but ruled it out after checking the timing with a gun, then I changed the spark plugs for a slightly colder running set, no difference, confirmed the 2 exhausts weren't hitting anything, checked engine and gearbox mountains for wear nothing doing there either, checked all around the pulleys for any contact points, checked alternator/water pump bearings nope nothing, even changed the propshaft yesterday, nothing doing there either, but today I thought I would check the timing again just to be sure and low and behold my timing gun give up the ghost, so I went and got my back up gun, it doesn't have all the features of my now deceased gun but it does the job, connected it up, started the car, removed vacuum advance line and began to check the timing, low and behold according to my back up gun the base timing is way to advanced, she was firing about a quarter of an inch before the pulley arrow even lined with the timing marks on the timing cover!!! To confirm this I went and checked my other car who's timing was set with that knackered gun and that was exactly the bloody same, so all this time it was simply to advanced - I thought it was pinking but the timing gun said otherwise, timing is now set properly and no more pinking.
You really do learn something new everyday
So I have been experiencing a 'rattle' from the car under acceleration for a couple of weeks, at first I thought she was pinking but ruled it out after checking the timing with a gun, then I changed the spark plugs for a slightly colder running set, no difference, confirmed the 2 exhausts weren't hitting anything, checked engine and gearbox mountains for wear nothing doing there either, checked all around the pulleys for any contact points, checked alternator/water pump bearings nope nothing, even changed the propshaft yesterday, nothing doing there either, but today I thought I would check the timing again just to be sure and low and behold my timing gun give up the ghost, so I went and got my back up gun, it doesn't have all the features of my now deceased gun but it does the job, connected it up, started the car, removed vacuum advance line and began to check the timing, low and behold according to my back up gun the base timing is way to advanced, she was firing about a quarter of an inch before the pulley arrow even lined with the timing marks on the timing cover!!! To confirm this I went and checked my other car who's timing was set with that knackered gun and that was exactly the bloody same, so all this time it was simply to advanced - I thought it was pinking but the timing gun said otherwise, timing is now set properly and no more pinking.
You really do learn something new everyday