Reply With QuoteI routed my breather tube back to the intake about 5 years ago.
Master
I've seen the crankcase breather on some NA and turbo units, throwing out almost a mist of fumes, and I've heard this is a concern to the RTA, when they inspect commercial vehicles-I'm talking 4BD1 specific here!. I have also seen that the later engines feed the breather straight back into the inlet manifold! (could get messy) so no worries with any exhaust....
......If they decide to cause any strife, it'll be on commercial road vehicles only, done on the age of the vehicle, and/or engine mileage/kays. They can't go too far, think of all the tractors, gensets, and forklifts, IHMO......
ForumSage
I routed my breather tube back to the intake about 5 years ago.
Swaggie
I had no probs engineering the 4BD1 in the RRC, on paper the isuzu puts out far less kilowatts than a 3.9 V8,( Let alone the 4.6 that was in there!) and once they saw that they were quite happy
JC
Master
Whereabouts does it enter the inlet manifold, mate?, I use mine to coat the inside of my chassis rails......I routed my breather tube back to the intake about 5 years ago.
Yeah, I know, my point is that the EPA mayhave a problem with older diesels used commercially in the future, anyway, it's all academic at this stage, and hopefully for the future.......I had no probs engineering the 4BD1 in the RRC, on paper the isuzu puts out far less kilowatts than a 3.9 V8,( Let alone the 4.6 that was in there!) and once they saw that they were quite happy
ForumSage
Just upstream of the turbo intake.Originally Posted by 1103.9TDI
I have enough crap competing to lube my chassis rails.
Swaggie
Sorry, should've read closer Gerry, in Tas they are pretty laid back ATM about EPA regs, but agreed, in the future things may be a bit different.
JC
Master
SubscriberJust wondering about the isuzu engines such as the 4BD1, is it common for them to have a fair bit of visible blow-by out of the breather. The 4BB1 i have in my engine has quite a bit, mind you it is older than the 4BD1.
sorry for the hijack
cheers Paul
Master
I would be interested to know this as well.I have not checked on blow-by but I have just dropped the oil, done a flush with CEM, changed the oil filter but still getting a bit of black smoke during acceleration, runs clean at idle and cruise and a puff at start up. Also just started to use a fuel cleaner. At this stage I am waiting to see if it settles,but not sure if this is fairly normal.
Paul
ForumSage
Mine had a slight draught at idle after a rebuild (i.e. not run in yet). A 4BC2 with about 100,000km on it had similar.Just wondering about the isuzu engines such as the 4BD1, is it common for them to have a fair bit of visible blow-by out of the breather. The 4BB1 i have in my engine has quite a bit, mind you it is older than the 4BD1.
sorry for the hijack
cheers Paul
But under load, especially with a turbo you'd expect quite a lot coming through there. Isuzu wouldn't have put an oil/air seperator on it if wasn't needed.
Master
Subscriberit is a bit hard to tell if it is blowby on mine, as the vacuum pump also exhausts into the crank case. There is a fair bit at idle, but it dose not seem to get much worse at high rpm.
Posting Permissions
| Search AULRO.com ONLY! |
Search All the Web! |
|---|
|
|
|
Bookmarks