SOMETHING TO WATCH OUT FOR WHEN REMOVING SLEEVES
Make sure to check when removing sleeves, that there is some sort good resistance when pulling them out, if there's no resistance, and they come out with ease,
I reckon the sleeve have been squeezed and nipped, your wasting your time replacing them, you'll will IMO also require a new head.
Here's what happened on the last sleeve seal job.
When removing a set of sleeves, I found my sleeve puller was a little bit tight when inserting into the sleeve, as the puller was made from the specifications of a new sleeve, I thought maybe a bit of grime had built up or something on the old sleeve, eventually I managed to get the sleeve puller in, and when the sleeve was been extracted. I found that there was very little resistants, these sleeves pulled out easier than normal, nearly didn't need a spanner, as I have done many sleeve replacements, and suspected something wrong, normally you have to swing on the end of a spanner before the sleeve gives up and cracks its seal.
On closer inspection of the old sleeves, I found that there were internal marks where the sleeve has nipped the injector, more so on number one injector.
I measured the sleeves internal diameter, and found the measurement to be 2 tenths of a mm smaller than a new sleeve, to confirm what I found, I had an old 16mm dynabolt that I used on a previous job, before I made my new puller, I tried to insert the dynabolt into old sleeve, it was very hard to get the dynabolt in without it jamming up.
The sleeves looked okay, no pitting no damage, apart from the bottom seal being badly damaged (see attached photo's) the sleeves been slightly smaller internally bothered me.
looking into the head there was no visible damage to the sleeve orifices but suspected there could be distortion, also inspected the injectors which externally look okay.
New sleeves and seals were fitted, and the car test run, its seamed to run okay for a while,but has developed a fault, of blowing smoke and the engine is running on, the engine is not making oil, and the turbo isn't leaking,and theres no fuel in the cooling system.
I suspect there has been damage done to the head, when it has overheated.
sorry,I forgot to mention previously before the sleeve job, the car had bust a hose and had a cracked radiator, which the owner had repaired.
During the sleeve repair I noticed the small hose from the thermostat housing to the turbo was leaking and the owner told me the in cab heater was leaking,( both leaks were repaired )this car has had a history of water leaks, I suspect that the engine at sometime has badly overheated, and the head has been cooked.
So even if the sleeves look okay, be aware, there still could be something wrong with them.
Make sure to check when removing sleeves, that there is some sort good resistance when pulling them out, if there's no resistance, and they come out with ease,
I reckon the sleeve have been squeezed and nipped, your wasting your time replacing them, you'll will IMO also require a new head.
Here's what happened on the last sleeve seal job.
When removing a set of sleeves, I found my sleeve puller was a little bit tight when inserting into the sleeve, as the puller was made from the specifications of a new sleeve, I thought maybe a bit of grime had built up or something on the old sleeve, eventually I managed to get the sleeve puller in, and when the sleeve was been extracted. I found that there was very little resistants, these sleeves pulled out easier than normal, nearly didn't need a spanner, as I have done many sleeve replacements, and suspected something wrong, normally you have to swing on the end of a spanner before the sleeve gives up and cracks its seal.
On closer inspection of the old sleeves, I found that there were internal marks where the sleeve has nipped the injector, more so on number one injector.
I measured the sleeves internal diameter, and found the measurement to be 2 tenths of a mm smaller than a new sleeve, to confirm what I found, I had an old 16mm dynabolt that I used on a previous job, before I made my new puller, I tried to insert the dynabolt into old sleeve, it was very hard to get the dynabolt in without it jamming up.
The sleeves looked okay, no pitting no damage, apart from the bottom seal being badly damaged (see attached photo's) the sleeves been slightly smaller internally bothered me.
looking into the head there was no visible damage to the sleeve orifices but suspected there could be distortion, also inspected the injectors which externally look okay.
New sleeves and seals were fitted, and the car test run, its seamed to run okay for a while,but has developed a fault, of blowing smoke and the engine is running on, the engine is not making oil, and the turbo isn't leaking,and theres no fuel in the cooling system.
I suspect there has been damage done to the head, when it has overheated.
sorry,I forgot to mention previously before the sleeve job, the car had bust a hose and had a cracked radiator, which the owner had repaired.
During the sleeve repair I noticed the small hose from the thermostat housing to the turbo was leaking and the owner told me the in cab heater was leaking,( both leaks were repaired )this car has had a history of water leaks, I suspect that the engine at sometime has badly overheated, and the head has been cooked.
So even if the sleeves look okay, be aware, there still could be something wrong with them.
