TD42 Rebuild

Engines and Engine Systems
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Tinus lotz
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Re: TD42 Rebuild

Post by Tinus lotz » 22 Jul 2017 08:49

Rudolph wrote:
Tinus lotz wrote:imho resize mater jy wil turbo pistons hê
Dankie Tinus, jy praat nou van die conrod resize van 28mm na 30mm?
Yes daar is nie alfin pistons met keystone ringe in die klein size beskilbaar nie resize is die pad voorentoe ....bou n reg motor jy sal nie spyt wees nie

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Re: TD42 Rebuild

Post by Rudolph » 08 Aug 2017 11:36

Short update, after a few frustrating weeks, I finally ordered most of the parts required for the rebuild this morning at Alert in Port Elizabeth. Still out standing to be ordered is a set of main bearings, Alert does not have in stock, a water pump and a clutch kit.

Just want to say thanks to Michael/Tinus helping out with part numbers on the pistons and sleeves and other helpful hints.
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Re: TD42 Rebuild

Post by Rudolph » 26 Aug 2017 15:52

Time for an update again, the block is at the engineering shop, busy to fit the new sleeves, and as I have the silvertop motor the conrods need to be resized from 28mm to 30mm to accommodate the turbo pistons. This is also in process to be resized. The new precom's is installed and the head is ready to be put together.

The inline fuel pump is in for calibration and bad news come back that it is in a bad state and in need of a full overhaul, need to get more detail on what is all wrong, but at this stage news is it is badly worn out as well as the injectors needs an overhaul.

Just also want to thank Dustin helping out to get the new Clutch kit sorted and couriered from PE to Port Alfred, I owe you one! QQQ

On the down side, I have to put the installation of the turbo on hold for a while, main reason is finances as we in the process of buying another property and rebuilding the engine cost is getting high, so need to save up again.

Upside, I'm going to have a brand new TD42 motor that will last for ever. :thumbup:

Will keep you updated on the progress. Excited to drive this beast again! I know it is still a N/A. :rolleyes:
Attachments
20170825_102105.jpg
Head coming on nicely
20170825_102105.jpg (100.82 KiB) Viewed 400 times
20170825_102033.jpg
Stainless steel welch plugs, still looking great!
20170825_102033.jpg (83.28 KiB) Viewed 400 times
20170825_102012.jpg
Old sleeves out, time for new ones
20170825_102012.jpg (105.15 KiB) Viewed 400 times
Last edited by Rudolph on 27 Aug 2017 06:34, edited 2 times in total.
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Re: TD42 Rebuild

Post by hugejp » 26 Aug 2017 16:42

Looking good boet!

:thumbup:
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Re: TD42 Rebuild

Post by iandvl » 26 Aug 2017 17:03

Looking good.

On a side note: looking at your photos. There is something so sexy about a big block, straight six..... :rolling:

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Re: TD42 Rebuild

Post by Michael » 26 Aug 2017 19:47

Very nice!! Jy gaan nou n engine he wat n leeftyd gaan hou.

Ek het vir jou n inline pomp as jy nie reg kom met jou huidige een nie.
Ek sou aanbeveel sit n VE pomp op terwyl die engine uitmekaar is dan is dit afgehandel vir toekomstige planne op te turbo. Jy moet ongelukkig ook die timong vover ruil, maar ek het ook so en vir jou :thumbup:
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Re: TD42 Rebuild

Post by Rudolph » 28 Aug 2017 08:38

Michael wrote:Ek het vir jou n inline pomp as jy nie reg kom met jou huidige een nie.
Dankie Michael, ek net hoor wat alles fout is dan laat weet ek jou.

Ek gaan in tussen ook die exhaust oordoen, so nou wil ek asb hoor by die guru's watter grote gaan die beste werk op die N/A vir nou, sal 'n 3" voldoende wees of gaan die engine te min back pressure hê? Sal graag wil hoor wat julle manne sê.
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Re: TD42 Rebuild

Post by Dustin » 28 Aug 2017 15:15

That TD42 is going to purr like a kitten once it's all done.
On the exhaust, my previous 4.2D had a freeflow setup on it from the previous owner.
If I remember correctly it was 57mm pipe with 1 freeflow box.
It did make a difference to performance over a standard 4.2D...but not as much as a turbo will :layrubber:
Just teasing a bit :lol:
Don't stress, the turbo will come in time :thumbup:
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Re: TD42 Rebuild

Post by ChristoSlang » 28 Aug 2017 19:01

Rudolph wrote:Ek gaan in tussen ook die exhaust oordoen, so nou wil ek asb hoor by die guru's watter grote gaan die beste werk op die N/A vir nou, sal 'n 3" voldoende wees of gaan die engine te min back pressure hê? Sal graag wil hoor wat julle manne sê.
'n 3" pyp sal perfek werk! Ek het selfs 'n mooi groot free-flow silencer vir so 3' pyp wat hier by my rondlê wat jy verniet kan kry. Omdat my kar 'n turbo het ry ek met 'n 3" pyp sonder enige silencers, maar ek vermoed dit sal dalk bietjie raas sonder 'n turbo om dinge stil te maak.

Die konsep van "te min back pressure" is 'n afskuwelike mite en dit is ons plig om mekaar beter in te lig: "Backpressure caused by the exhaust system (consisting of the exhaust manifold, catalytic converter, muffler and connecting pipes) of an automotive four-stroke engine has a negative effect on engine efficiency resulting in a decrease of power output that must be compensated by increasing fuel consumption."
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Re: TD42 Rebuild

Post by Michael » 28 Aug 2017 19:06

Jip nes Christo daar se, minder back preasure is beter. Hoe vinniger jy daai exhaust gas kan uit kry hoe meer krag sal jy maak.

Ek dink n freedlow sal n verskil maak op jou NA engine, maar nie so baie soos jy dink nie. Ek sal eerder die exhaust so hou en daai geld na n ander VE pomp se kant toe gooi dan is n groot probleem afgehandel.
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