James5
04-02-2015, 15:43
Afternoon firstly let me aplogise for using this site for help with my F7pt converted R5 GTT, I know it's now an F7r engine but with the similarity I am in need of some urgent help.
I have recently completed a fully forged F7pt conversion using fastchips high boost setup, now I am having an issue in which my car sounds like it's running on 3 but it's not, revving it makes no difference. I have checked cam timing and spot on, the bottom end is fully fresh and machine shop honed, new wossners and wossner rings with pec rods, new bearings etc..
I have so far done the following:
Compression tested all 4 cylinders seeing 128 -130psi (don't foget new build not covered any mileage yet),
Removed all spark plugs and cranked over and I have spark at all 4,
Fuel rail removed and had firing up bonnet and again the all mist,
Cam belt timing checked and all markings line up,
Dizzy cap and rota arm checked and all ok,
King Lead checked and defo giving voltage (like an idiot I touched it by mistake),
I have no mayo in the oil,
I have no oil in the coolant,
Now the other day midday the car started like this and after an hour of fiddling with everything it ran fine be it with hydraulic lifter noise, but when I went to drive it that eve it was back to what sounded like 3.
Now if I removed the leads 2,3 and 4 make a big difference yet number 1 makes very little different to the engine note, I have swapped spark plugs over no difference, I have even fitted a brand new HT lead for number 1 aswell with no difference.
The colour of the spark plugs is black sotty and dry other than number 1 which is wet with fuel but still black, I have ordered new spark plugs and I am going to swap injectors around to see if the problem moves cylinder.
I assume Crank sensor fine as I am getting spark.
Any thoughts??68296830
I have recently completed a fully forged F7pt conversion using fastchips high boost setup, now I am having an issue in which my car sounds like it's running on 3 but it's not, revving it makes no difference. I have checked cam timing and spot on, the bottom end is fully fresh and machine shop honed, new wossners and wossner rings with pec rods, new bearings etc..
I have so far done the following:
Compression tested all 4 cylinders seeing 128 -130psi (don't foget new build not covered any mileage yet),
Removed all spark plugs and cranked over and I have spark at all 4,
Fuel rail removed and had firing up bonnet and again the all mist,
Cam belt timing checked and all markings line up,
Dizzy cap and rota arm checked and all ok,
King Lead checked and defo giving voltage (like an idiot I touched it by mistake),
I have no mayo in the oil,
I have no oil in the coolant,
Now the other day midday the car started like this and after an hour of fiddling with everything it ran fine be it with hydraulic lifter noise, but when I went to drive it that eve it was back to what sounded like 3.
Now if I removed the leads 2,3 and 4 make a big difference yet number 1 makes very little different to the engine note, I have swapped spark plugs over no difference, I have even fitted a brand new HT lead for number 1 aswell with no difference.
The colour of the spark plugs is black sotty and dry other than number 1 which is wet with fuel but still black, I have ordered new spark plugs and I am going to swap injectors around to see if the problem moves cylinder.
I assume Crank sensor fine as I am getting spark.
Any thoughts??68296830