TD42 Rebuild
- ChristoSlang
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Re: TD42 Rebuild
Hier stem ek ook saam met Michael...
My ondervinding met exhaust mods op non-turbo karre wys dat daar regtig min verskil is tuseen verskillende pype. Op turbo karre maak dit egter baie meer sin, aangesien daar baie meer lugvloei is wat jy kan belemmer met 'n te klein pyp...
My ondervinding met exhaust mods op non-turbo karre wys dat daar regtig min verskil is tuseen verskillende pype. Op turbo karre maak dit egter baie meer sin, aangesien daar baie meer lugvloei is wat jy kan belemmer met 'n te klein pyp...
- Rudolph
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Re: TD42 Rebuild
Dankie manne nou voel ek meer gerus na ek van die afskuwelike mite gelees het, wys jou nou net, praat net met die guru's en jy kry die regte raad!
I'm not after performance by installing the 3" pipe, as it needs to be done, want to be pro-active for when the turbo comes in a few months, then the exhaust is sorted.
Now, you guys is going to give me a hard time but the inline pump is being fixed so it is staying, not ideal but that is what it is.
There have to be at least one turbo with an inline pump in Africa as well, can't be all down under, challenge coming up
Block is currently in the boring machine, they going to bore it and fit the new sleeves this afternoon. Will go take some pictures tomorrow.
I'm not after performance by installing the 3" pipe, as it needs to be done, want to be pro-active for when the turbo comes in a few months, then the exhaust is sorted.
Now, you guys is going to give me a hard time but the inline pump is being fixed so it is staying, not ideal but that is what it is.
There have to be at least one turbo with an inline pump in Africa as well, can't be all down under, challenge coming up
Block is currently in the boring machine, they going to bore it and fit the new sleeves this afternoon. Will go take some pictures tomorrow.
- Michael
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Re: TD42 Rebuild
Good news Rudolph!!
The only problem with the inline pump and a turbo is that the inline pump's fuel is not controled by a lever like on the VE pump, but via vacuum behind the butterly on the intake.
Now if you add a turbo you will no longer have any vacuum there but boost so the pump can no longer give more fuel.
I am sure there is a way around it, but I have never worked on one of those
The only problem with the inline pump and a turbo is that the inline pump's fuel is not controled by a lever like on the VE pump, but via vacuum behind the butterly on the intake.
Now if you add a turbo you will no longer have any vacuum there but boost so the pump can no longer give more fuel.
I am sure there is a way around it, but I have never worked on one of those
"The Just shall live by Faith" Rom1:17
Check out my build here My Patrol
And my engine rebuild here mostly engine related stuff
Check out my build here My Patrol
And my engine rebuild here mostly engine related stuff
- Peter Connan
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Re: TD42 Rebuild
Probleem is, jy sal in elk geval moet "laat werk" aan jou nuwe exhaust wanneer jy die turbo insit, want die inlaat moet skuif/verander en die silencer moet/kan/sal verwyder word.Rudolph wrote: I'm not after performance by installing the 3" pipe, as it needs to be done, want to be pro-active for when the turbo comes in a few months, then the exhaust is sorted.
Dus maak jy in elk geval vir jouself dubbele werk. Ek sou dit los tot jy die turbo insit.
Mag ons ons kenniskry met lekkerkry aanhoukry.
- Dustin
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Re: TD42 Rebuild
From what I've seen about the inline pumps is that the governor is vacuum driven, so advancing the fueling under boost is not possible.The only problem with the inline pump and a turbo is that the inline pump's fuel is not controled by a lever like on the VE pump, but via vacuum behind the butterly on the intake.
It is possible to convert the governor to a mechanical system using some parts from a Mercedes A606 injector pump, but it's pretty complicated and time consuming, so that means the cost of the conversion far out weighs purchasing a Bosch VE style rotary pump with an aneroid fitted.
That being said, some guys have found SD33T inline injector pumps which are the factory mechanically governed versions of the pumps found on the old GQ Patrol TD42's.
I'm pretty sure they're rarer than hens' teeth in SA, so rather just go the Zexel (Bosch VE style) rotary pump route, because spares are more common and likely cheaper than rebuilding the inline pumps.
Just for interest sake here's a some videos I found of the conversion of the inline pump, as well as a video of how the boost compensator (ALDA) would work on those pumps :
a.k.a. Datsun Dustin
View my Patrol's story here : http://patrol4x4.co.za/viewtopic.php?f=43&t=6478
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GO PATROL !!!
View my Patrol's story here : http://patrol4x4.co.za/viewtopic.php?f=43&t=6478
No hill too steep, no donga too deep !
GO PATROL !!!
- Rudolph
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Re: TD42 Rebuild
From what I could gather, is that the way around it, is that the pipe at the back of the pump still goes to the throttle body and the pipe closer to the pump need to be fitted post turbo so that it sees boost, original in NA setup this pipe is connected to the airbox. The inline pump is good only for low boost application, down under, which is good for your option to get out of donkey mode.Michael wrote:The only problem with the inline pump and a turbo is that the inline pump's fuel is not controled by a lever like on the VE pump, but via vacuum behind the butterly on the intake.
Now if you add a turbo you will no longer have any vacuum there but boost so the pump can no longer give more fuel.
I am sure there is a way around it, but I have never worked on one of those
Other thing I have read on Patrol4x4.com, they claim the inline pump give better low rev performance where the VE pump gives better higher rev range performance.
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- Inline Fuel Pump
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- Rudolph
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Re: TD42 Rebuild
The Block is almost done busy with some final touches, the engineering shop left 2 thou to be honed then they finished.
Some pictures below, they bored the block and took away 0.5mm to fit the new sleeves. The sleeve ID was cut away 1.1mm to fit the new pistons.
Some pictures below, they bored the block and took away 0.5mm to fit the new sleeves. The sleeve ID was cut away 1.1mm to fit the new pistons.
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- Block bored
- 20170830_110943.jpg (96.01 KiB) Viewed 4548 times
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- Block bored
- 20170830_110957.jpg (68.15 KiB) Viewed 4548 times
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- Block bored
- 20170830_111025.jpg (106.09 KiB) Viewed 4548 times
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- Boring the sleeves
- 20170831_155447.jpg (98.84 KiB) Viewed 4548 times
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- Boring the sleeves
- 20170831_155618.jpg (131.63 KiB) Viewed 4548 times
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- Honing
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- Honing to be done
- 20170901_114629.jpg (112.96 KiB) Viewed 4548 times
- ricster
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Re: TD42 Rebuild
Looking VERY nice indeed !!!
Regards
Cedric
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Cedric
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Re: TD42 Rebuild
Hi Rudolph
Nou voel ek darem redelik sleg oor Betsie se motor. Jy moes laat weet het, ek het redelik goeie kontakte by Alert, kon gehelp het. Maar die plus side, daai motor is darem vreeslik sexy so KAAL!!
Groete
Andre
Nou voel ek darem redelik sleg oor Betsie se motor. Jy moes laat weet het, ek het redelik goeie kontakte by Alert, kon gehelp het. Maar die plus side, daai motor is darem vreeslik sexy so KAAL!!
Groete
Andre
- Rudolph
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Re: TD42 Rebuild
Geen probleem Andre! Ons het darem reggekom op ou einde met al die parte. Sal laat weet as daar nog iets is waar hulp benodig word.
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