m62B44 engine rebuilding

[jon316i]

By the way I've been to see the tuner about suppling ,wiring in, doing all the mapping and extra sensors for a Link Storm ECU looks pretty interesting for June time.

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How much is the big question Keith? Lol
can it work with the auto gearbox?

[Kenny1958]

£1850 all in and it should work OK with the gearbox.

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[jon316i]

£1850 all in and it should work OK with the gearbox.

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That's not bad at all. What extra sensors are you thinking of adding?

[jon316i]

Is it possible to swap upper and lower timing covers from another engine or are they machined to fit each engine individually etc?

[geargrinder]

AFAIK they are completely swappable. There's gasket surfaces interfacing so shouldn't be any issue...

[geargrinder]

Back to vanos, if there was the ability to have cam retard like the s62, I'd be all for it. But my understanding of m62tu is that there is only the option of up to 20 degrees of cam advance.
I posed this question 30 posts ago but no one picked up on it.

Well, with full DME control, there's no reason you couldn't make it work in middle of the 20 degrees so you had -10 and +10 from 'default'. You'd basically have to A. re-time the VANOS/cams (which would be tricky) then B. reprogram the whole DME VANOS tables from scratch.

To re-time the cams you could rig some kind of indexed degree wheel on them - zero them out in the factory '0' then dial back - but this would be a PITA for holding the cams steady while torquing the VANOS gear bolts. Another route would be use factory cam locks but instead of the factory procedure to keep VANOS fully closed, index the VANOS itself, and torque it down in the exact mid-point. That might be a lot easier in fact now that I think of it.

Doing that whole thing you'd really prob want a standalone then to be able to handle the VANOS timing more conveniently than the factory mystery DME's. Would have to do some triple checking on valve clearance too to be sure there wasn't any tricky bits there.

[Kenny1958]

That's not bad at all. What extra sensors are you thinking of adding?

He will be installing a MAP sensor and IAT to the charge coolers, the temp sensor in the MAF will read a bit colder than the forced air being pushed in by the blower he said.
He is still doing his research on the standard ecu to find the best way to hook it all up. Would this be something that you might be interested in doing in the future ? as i can ask him if that price would also stand for you also.

[jon316i]

He will be installing a MAP sensor and IAT to the charge coolers, the temp sensor in the MAF will read a bit colder than the forced air being pushed in by the blower he said.
He is still doing his research on the standard ecu to find the best way to hook it all up. Would this be something that you might be interested in doing in the future ? as i can ask him if that price would also stand for you also.

I often thought about trying to get a temp sensor in the charge cooler to work with the standard ecu but it's all very difficult. With a standalone its a 5 minuite job.
I have a slight plan on the standalone front just waiting till i can get inside this engine some more before I do anything. Thanks for the offer though

[jon316i]

Just thinking about parts I need to order, should I be replacing the big end bearings as I plan to change the rods? I wouldn't have the crank ground or anything just a standard sized set. They can be had for about £70 quite cheap tbh

[tptrsn]

Wagonsho can probably comment on whether he's seeing much rod bearing wear in his engines he's torn down, but honestly you probably want to just take a look at them. If they don't look nice, then replace them. If they do look nice, you might as well leave well enough alone and not ask for an issue by potentially changing a clearance that doesn't need changing. That's my 2 cents' worth anyway.

[StRaNgEdAyS]

I would replace the bearings if I was doing it. It's one less point of failure to be worried about.

Absinthe makes the tart grow fonder.

[tptrsn]

Sometimes when you replace good bearings you end up with a less desirable clearance. And that is a problem, where previously you had none. Just food for thought.

[JimLev]

Just throw some Plastigauge in there to check the clearances.

[jon316i]

Replacement valve covers have arrived as the others where warped on the front


i plan to run a watercooled alternator lower cover as this will keep my water hoses the same

[jon316i]

Spent most of last weekend out in the sun lapping valves in


all ready to go back together, heads have been skimmed .005" off them due to a slight warp. Everything else has been cleaned ready to go

[Mach540]

I can picture your dog chasing a ball across your neatly stacked parts...........

[JimLev]

How come no 3 angle valve job?

[jon316i]

I didn't know about 3 angle valve jobs etc. I thought as I wasn't repalcing the seats just a re lap would do.

Checked re all the ring gaps aw they currently stand. Engine had done under 110k mileage
factory spec in mm


point of measurement set using a piston


and the results

[tptrsn]

Jon, there are some things in life where tight is NOT good. What are your plans for those ring gaps?

[jon316i]

Jon, there are some things in life where tight is NOT good. What are your plans for those ring gaps?

I'm going .020 top .025 bottom

[geargrinder]

Jon, there are some things in life where tight is NOT good.

Must... Not... Tell... Inappropriate... Stories....

[tptrsn]

I'm going .020 top .025 bottom

Sounds good!

Must... Not... Tell... Inappropriate... Stories....

[jon316i]

any suggestions now? Lol


snapped while refitting it
i have some spare rings from my old engine would they be any use?

[tptrsn]

I don't see why one of the rings from a good cylinder in your other engine wouldn't be just fine. Used ring from an alusil cylinder either way, right?

Do you have a ring expander, or were you using some other method to install that one?

[jon316i]

I don't see why one of the rings from a good cylinder in your other engine wouldn't be just fine. Used ring from an alusil cylinder either way, right?

Do you have a ring expander, or were you using some other method to install that one?

Yeah that's what I was thinking. Obviously won't be worn in the same manner but I can't imagine it will be a million miles off. I'll check the old block for a cylinder with no damage on and get one from there.

No I don't have a ring expander I was doing it by hand. This is my first time delving this deep into an engine so I'm not fully kitted out for it