The 307 chev in the fj 40 I am looking at seems to blow a bit of white/blue smoke on start up and on decelleration, after a good run it seem to not do it until you idle for a while and then give it a few good revs and back comes a bit of smoke. The fellow has had the motor done up and he took it to a mechanic recently and he reckons it is a chev thing a not to worry about it.
The motor runs well except for that. Any ideas out there?? Maybe valve stem seals or maybe worse I am not sure??
Notice: We request that you don't just set up a new account at this time if you are a previous user.
If you used to be one of our moderators, please feel free to reach out to Chris via the facebook Outerlimits4x4 group and he will get you set back up with access should he need you.
If you used to be one of our moderators, please feel free to reach out to Chris via the facebook Outerlimits4x4 group and he will get you set back up with access should he need you.
Recovery:If you cannot access your old email address and don't remember your password, please click here to log a change of email address so you can do a password reset.
FJ 40 with 307 Chev and smoke
Moderators: toaddog, Elmo, DUDELUX
God Of Emo
Posts: 7350
Joined: Sun Aug 24, 2003 7:04 pm
Joined: Sun Aug 24, 2003 7:04 pm
Location: Newy, home of the ZOOK (Rockin the 'diff)
Contact:
x3 -
at start up after sitting around for a while the oil has leeched past the valve stem seal and is sitting on the back of the valve head , so at start up it blows smoke and then
when at running and shutting the throttle off after a good run there is a greater vacuum in the bores which sucks oil in past the valve guides , hence valve stem seals.
at start up after sitting around for a while the oil has leeched past the valve stem seal and is sitting on the back of the valve head , so at start up it blows smoke and then
when at running and shutting the throttle off after a good run there is a greater vacuum in the bores which sucks oil in past the valve guides , hence valve stem seals.
My old cruiser had a 283 chev in it, i had it fully rebuilt, didn't blow any smoke for the 50,000 odd kms i had it for.
Me and Stulux recently did his valve guide seals on a blue 253 - plumbed the compressor to the plug hole, and did the seals without removing the heads. Surprisingly easy - but this didn't fix his problem - one head was cracked, so after new rings and bearings, another set of heads pressure tested and seals done, all good
Me and Stulux recently did his valve guide seals on a blue 253 - plumbed the compressor to the plug hole, and did the seals without removing the heads. Surprisingly easy - but this didn't fix his problem - one head was cracked, so after new rings and bearings, another set of heads pressure tested and seals done, all good
Landcruiser UTE 1996 FZJ75 - SPOA, 35"s,
extended chassis, poor mans extra cab, 4.56 diff gears, Lockright front, chinese air locker rear...
extended chassis, poor mans extra cab, 4.56 diff gears, Lockright front, chinese air locker rear...
Who is online
Users browsing this forum: No registered users and 0 guests