Zednine
New Member
Hi All.
Some encouragement for you.
After reading up on the guides here I decided to have a go at fixing No. 3 Cylinder's leak at the base of the injector. It was easy to spot... you could see and hear the puff-puff of blow by. I bought the tools from amazon and ebay, Injector puller kit. Seat cutting kit, Torx bolts, torque wrench, new bolts and washers. watched the video on you tube a few times, reread the guides.. etc. etc.
So - took the injector tool to remove the top of the injector.. twang.. bits went flying.. ooops. found all the bits and put aside. After a few hours of huffing and puffing, used a dental pick, screwdriver, carb cleaner. wd 40. got the injector out. cleaned away all the carbon etc. with vacuum and more picking etc. very gently used the seat cutter, not to cut, just to scrape the seat clean, stopped when it looked spotless. I put the copper washer on a knife sharpener block to "lap" the faces lightly, spotted that the highpoints on the washers are outward and inward from center. I put the inside high side to the injector face and the further out high point to the cylinder head, used correct MB grease lightly. Very carefully torqued it up. Tested.... Sounded good when stationary. Took it 4 a run.. Lumpy did not do it justice.
Gave up for the day.
Next day - took the top off the injector and did the same with a working injector. - this time holding it together. Ah Ha.. had a bit in the wrong place. Corrected that, tested on road. Smoother but still smelly.:sad:. checked and blow by again. Took out the injector, lapped, cleaned, cleaned bolt hole again. new washer - This time I annealed it by heating to red hot and plunging the washer into cold water. lapped it. Greased, refitted etc.
One week later and its great, have power, no smell and no leak.
Total cost £125 plus about 8 hours of my time. Benefit. SATISFACTION and next injector with black death will take me 3 hours max I reckon.
Not bad for an IT geek.
Some encouragement for you.
After reading up on the guides here I decided to have a go at fixing No. 3 Cylinder's leak at the base of the injector. It was easy to spot... you could see and hear the puff-puff of blow by. I bought the tools from amazon and ebay, Injector puller kit. Seat cutting kit, Torx bolts, torque wrench, new bolts and washers. watched the video on you tube a few times, reread the guides.. etc. etc.
So - took the injector tool to remove the top of the injector.. twang.. bits went flying.. ooops. found all the bits and put aside. After a few hours of huffing and puffing, used a dental pick, screwdriver, carb cleaner. wd 40. got the injector out. cleaned away all the carbon etc. with vacuum and more picking etc. very gently used the seat cutter, not to cut, just to scrape the seat clean, stopped when it looked spotless. I put the copper washer on a knife sharpener block to "lap" the faces lightly, spotted that the highpoints on the washers are outward and inward from center. I put the inside high side to the injector face and the further out high point to the cylinder head, used correct MB grease lightly. Very carefully torqued it up. Tested.... Sounded good when stationary. Took it 4 a run.. Lumpy did not do it justice.
Gave up for the day.
Next day - took the top off the injector and did the same with a working injector. - this time holding it together. Ah Ha.. had a bit in the wrong place. Corrected that, tested on road. Smoother but still smelly.:sad:. checked and blow by again. Took out the injector, lapped, cleaned, cleaned bolt hole again. new washer - This time I annealed it by heating to red hot and plunging the washer into cold water. lapped it. Greased, refitted etc.
One week later and its great, have power, no smell and no leak.
Total cost £125 plus about 8 hours of my time. Benefit. SATISFACTION and next injector with black death will take me 3 hours max I reckon.
Not bad for an IT geek.
