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Things To Know When Rebuilding Rb26

Waders

By Waders,
in Engines & Forced Induction

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Waders Explorer

Waders

Posted
Posted

Having my RB26DETT rebuild by a company that doesnt really know those kind of engine. They have the Bible, and they are following the book. They have really good mechanic, so I trust them no to do anything stupid.

But is there anything that I should tell them to not forget or to lookout for?

I heard something about the torque plate warping? I dont have any info on that. Does anyone know what that is?

Is there anything I should know to prevent any kind of surprise?

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wrxhoon Grand Master

wrxhoon

Posted
Posted
Having my RB26DETT rebuild by a company that doesnt really know those kind of engine. They have the Bible, and they are following the book. They have really good mechanic, so I trust them no to do anything stupid.

But is there anything that I should tell them to not forget or to lookout for?

I heard something about the torque plate warping? I dont have any info on that. Does anyone know what that is?

Is there anything I should know to prevent any kind of surprise?

You should have taken it to someone that has built them before .

What kind of built are you doing ? You normaly rebore and hone the block with a torque plate .

wrxhoon Grand Master

wrxhoon

Posted
Posted
Are rbs really that different to any other motor? surely a bottom end is a bottom end?

Of course they are not Duncan but if you take to someone that does them all the time, they know what to look for and they can do it fairly quickly . At the end it will be cheaper and better because they are geared up for it .

PurpleR32 Experienced

PurpleR32

Posted
Posted

Oil control can be a problem, but you havnt specified very much about the build. Is it a standard part rebuild? How much power are you after? What is the engine being built for? Will it see track/drag/drift or street?

Either way a good start is here

http://www.skylinesaustralia.com/forums/in...howtopic=110680

Waders Explorer

Waders

Posted
  • Author
Posted

Im rebuilding the bottom end:

.50mm oversized pistons,

Main bearings,

Rod bearings,

N1 Oil pump,

1.2 mm HG Nismo,

I'm just looking to rebuild it to standard specs.

The machine shop that im dealing with never touched a RB motor cause its not usual to see a rb here in canada but they do alot of dragsters and kinda like nascar motors. They probably know what there doing. But I wanted to know if there were anything (tips) for rebuilding the rb26?

Thanks alot for the info.

T04GTR Grand Master

T04GTR

Posted
Posted

depending on what pistons you are using

just make it clear that they get the piston/bore clerance correct

probably the most critical part of the build.

and yes torque plate honing is recomended(dummy head bolted to the block)

Warpspeed Experienced

Warpspeed

Posted
Posted

If it is a standard rebuild to basically stock specifications, the only requirement is good workmanship and care. Nothing particularly different or difficult to any other engine.

If a lot of non standard parts are being used, it is a completely different situation. Many genuine racing parts are simply not suitable for a long life road engine. Special engines require special care and expert knowledge in selecting and fitting non standard parts.

pnblight Mentor

pnblight

Posted
Posted

With the upgrade of oil pump to N1 i would install a tomei oil gallery block restrictor , they are cheap and very easy to install and just help control oil flow to the head.

If you haven't bought your head gasket kit just buy tomei metal head gasket kit as they have one in the kit or there like 500 yen on there own

On another note are you doing any work to the head if so the exhaust valve clearances might catch you guy out as they run very loose clearance because of the special valves (they feel f..ked even when there fine)

pete

Waders Explorer

Waders

Posted
  • Author
Posted
With the upgrade of oil pump to N1 i would install a tomei oil gallery block restrictor , they are cheap and very easy to install and just help control oil flow to the head.

If you haven't bought your head gasket kit just buy tomei metal head gasket kit as they have one in the kit or there like 500 yen on there own

On another note are you doing any work to the head if so the exhaust valve clearances might catch you guy out as they run very loose clearance because of the special valves (they feel f..ked even when there fine)

pete

I will install the tomei oil restrictor, and I have the nismo gasket kit with the 1.2mm steel HG.

Thanks for the info on the valve clearances, we were kinda stuck on that, trying to figure why it was so loose.

Is there any other information about rebuilding rb26 that you know of?

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