Welcome. My original carb also had a flatspot since new. No matter how you tune it, it had a flatspo

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Posted: Mon Nov 25, 2013 1:27 pm  0.5 bar boost Joined: Wed May 07, 2008 11:27 am Posts: 806 Location: Centurion
He probably clicked on Create new topic in another inco terms thread with that heading. 16v lift, you can change inco terms the topic by editing the first post. _________________ 1200 Datsun in the process of being rebuilt with a 4AGE 20V
The inco terms nissan Attachments: IMG00407-20131114-1330.jpg [ 97.77 KiB | Viewed 474 times ] IMG00407-20131114-1330.jpg [ 97.77 KiB | Viewed 474 times ] Top
Jetta VR6 - project = donkey of a kak car Top
Dirty engine bay u rigt boksie this bkkie was abused Attachments: IMG00409-20131114-1331.jpg [ 78.89 KiB | Viewed 468 times ] IMG00414-20131116-1143.jpg [ 56.07 KiB | Viewed 468 times ] IMG00415-20131116-1143.jpg [ 36.36 KiB | Viewed 468 times ] Top
Fitted new bumper inco terms ligts and grill removed sticke s bleed brakes Attachments: IMG00423-20131120-1926.jpg [ 86.59 KiB | Viewed 457 times ] IMG00424-20131120-1927.jpg [ 78.19 KiB | Viewed 457 times ] IMG00425-20131120-1927.jpg [ 70.25 KiB | Viewed 457 times ] Top
Thnx 4 the warm welcom guys . She's starting and idling smooth but have flat spots and heavy on juice give a black smoke mechanic say exaust valve is burnt advice please inco terms Top
the black smoke is because it's heavy on juice... the heavy on juice is because the carb is probably so clogged up and de tuned... it would be just chucking fuel into the manifold with a bucket. start with the carb, get that nice and clean again, then see what it's doing... _________________ Thou shalt look at pictures, all day long!!! Top
Welcome. My original carb also had a flatspot since new. No matter how you tune it, it had a flatspot. After getting gatvol for the flatspot I replaced it with a Weber carb. It gave me the same fuel consumption with a lot more go under the foot. (Same fuel consumption if you don't open the second barrel.) You also get service kits for the 1400 carbs with new seals, pump diafram and needle and seat. The flatspots can be a worn needle and seat or dirty jets, can also be a worn pump diafram. _________________ - Daily: 1994 Nissan 1400, 4AGZE, SC12 Supercharger, 20v Black top flywheel, T51 gearbox, Spitronics Titan advance ECU, SpeedSpot 4 into 1 branch and 63mm exhaust, 120 wHP, 260 NM on 93 ulp (Uncorrected mechanical dyno). - Daily: 1985 Golf 2 GTS with 2 liter ABF and Spitronics Titan advance. - 2002 Honda CBR 600 F4i with Stealth exhaust pipe, DNA air filter. - 1982 Leyland Mini 1275E with home built electronic ignition. Top
If inco terms I say pump diafram I am refering to the accelarator pump in the carb, not the fuel pump. _________________ - Daily: 1994 Nissan 1400, 4AGZE, SC12 Supercharger, 20v Black top flywheel, T51 gearbox, Spitronics Titan advance ECU, SpeedSpot 4 into 1 branch and 63mm exhaust, 120 wHP, 260 NM on 93 ulp (Uncorrected mechanical dyno). - Daily: inco terms 1985 Golf 2 GTS with 2 liter ABF and Spitronics Titan advance. - 2002 Honda CBR 600 F4i with Stealth exhaust pipe, DNA air filter. - 1982 Leyland Mini 1275E with home built electronic ignition. Top
So he carb is of and removed head also to check the valves wil up load pics 2mrrw 2pics of piston Attachments: IMG00431-20131125-2207.jpg [ 68.07 KiB | Viewed 422 times ] IMG00434-20131125-2207.jpg [ 68.64 KiB | Viewed 422 times ] Top
If I were you I'd strip the motor, give it a good clean and hone, fit new rings and bearings and new gaskets all round. Then also fit new valve stem seals and you know the motor is pretty much fresh inside and there can't be anything wrong with it. _________________ 1200 Datsun inco terms in the process of being rebuilt with a 4AGE 20V
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