head coming off again

Engines and Engine Systems
Andre Steyn
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Re: head coming off again

Post by Andre Steyn »

Bought the head gasket and exh manifold gasket today at nissan! What a shock R2400 for the lot. So now pistons, rings, and sleeves are next as well as the headbolts any ideas cos the agents are a bit mal with the bolt prices.
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Re: head coming off again

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Andre Steyn
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Re: head coming off again

Post by Andre Steyn »

Daarsy lyk my Alert is maar my naaste antwoord, weet nie watter brands hulle sal aan hou nie. Soos dinge nou gaan hoop ek om my wa volgende week,weer aan die loop te he.
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Michael
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Re: head coming off again

Post by Michael »

Andre, Alert hou noe head boute aan nie en pistons is net Autopower wat R3700 is vir n sleeve kit.
Ek het n prys op Head boute gekry by Masterparts in die kaap, dink dit was omtrent R750.
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Andre Steyn
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Re: head coming off again

Post by Andre Steyn »

Dankie Michael, jong die autopower pistons wonder ek maar oor soos dinge lyk is hulle besig om die mark heeltemal oor te neem. Ek kan nou nie onthou nie, maar is joune turbo?
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Michael
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Re: head coming off again

Post by Michael »

Ja myne is turbo, maar hierdie pistons is nie die keystone tipe nie. Hulle het wel Alfin inserts wat reg is vir n turbo setup.

Kyk ek dink nie Autopower is die beste pistons op die mark nie, maar soos Frans gese het is jou engine setup van so aard dat jy nie high performance parte nodig het soos ceramic coated pistons ens nie. Ek het nog nie probleme gehad met hulle nie en die 4.2 engine is baie ge over engineer en werk nie regtig hard nie.

weet nie hoe goed hierdie voorbeeld is nie, maar dit maak vir my sin. n Navara engine wat 109kw lewer met 4 cylinders werk 25% tot 30% harder as n Patrol engine wat 130kw met 6 cylinders lewer. Ek dink die Navara boost ook by 1.0 bar rond waar jy net 0.5 bar gaan boost.
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ricster
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Re: head coming off again

Post by ricster »

Sorry guys .... I had a crazy day and evening at work, only got home late, and clean forgot to check the parts etc. I'll do so tonight as soon as I get home.

Just take note that there are a LOT of parts that are for the Nissan 2.7L diesel that are IDENTICAL to the 4.2, and are a LOT cheaper. If I recall the pistons and rings and precoms are exactly the same. Mine are 2.7 pistons and rings and thats why I have a spare set of rings as the 2.7 is a 4 cylinder, so had to buy 2 boxes of 4 sets of rings. It must have been cheaper to buy the 2 boxes than to buy one box for the 4.2...... just a suggestion.....
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Andre Steyn
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Re: head coming off again

Post by Andre Steyn »

Right guys now you have to help me make the right choice, I can get federal mogul sleeve kit,R5850 autopower R5100 and motrex R5100. Quality wise which would be the best, all are keystone and alfin type.
Andre Steyn
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Re: head coming off again

Post by Andre Steyn »

Another odd worrying thing I've picked up on the injector pressures, all are different varying from 120 to 180! Having been supposedly done! What went wrong and could this have played a part in the damage?
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Michael
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Re: head coming off again

Post by Michael »

Just spoke to my friend at Alert, he can supply Autopower for R3850 but they don't stock the other brands.
"The Just shall live by Faith" Rom1:17

Check out my build here My Patrol
And my engine rebuild here mostly engine related stuff
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