Jump to content
SAU Community

Recommended Posts

Hmm, Ok in the last post though someone suggested using a plasti guage to do this and then someone else said that was a stupid idea and doesn't work.

What is the best way to ensure the clearance is perfect?

Thanks for your help guys

You really need to use a outside micrometer and bore gauge (correct term???? )

bore_measure.jpg

You really need to use a outside micrometer and bore gauge (correct term???? )

bore_measure.jpg

the one in the bore looks like a telescopic gauge?

I prefer to get a dial bore inducator, that can go from you main and big end size all the way to you piston bore. I then use an outside mic on the crank.

Now I put the motor back together all to spec and torque, I ran in the new rings with run in motor oil and all was well the car was driving fine... and FAST!
So when you say clearences what do you mean? suddenly I am feeling a little sheepish.

Wait, you're driving FAST while on a run in, and you don't know what clearences are, but you're trying to build your own motor?

My god man, take it to a workshop before it happens again!

Did you even get the crank machined to suit the bearings???

the one in the bore looks like a telescopic gauge?

I prefer to get a dial bore indicator, that can go from you main and big end size all the way to you piston bore. I then use an outside mic on the crank.

thats ^^^ the one :( (dial bore indicator) i forgot the term :D

thats ^^^ the one :( (dial bore indicator) i forgot the term :D

haha don't mind my spelling, i think im the first university educated engineer with the spelling skills at a grade 6 student lol

on a side not i tried to edit that last post and the edit button has vanished, but is on this post??

Edited by GTR1993

No no no, I wasnt driving fast during run in, I did the complete run in cycle, 5000 k's of labouring and babying and so on, with correct fluids, then 500 K's on new redline oils, then oil change again to make sure all was well and THEN the problem came up.

the one in the bore looks like a telescopic gauge?

I prefer to get a dial bore inducator, that can go from you main and big end size all the way to you piston bore. I then use an outside mic on the crank.

the one in the bore is simply an inside micrometer.

But mostly just skids, right?

This is why when I need an engine built, I go to.....drum roll......an engine builder. Just the same as when I need a tooth pulled I go to the dentist.

But mostly just skids, right?

This is why when I need an engine built, I go to.....drum roll......an engine builder. Just the same as when I need a tooth pulled I go to the dentist.

Sif man....Dentists build sick engines.

Well I could go to an engine builder and throw more money at it, true... Or I could learn the lesson here about what went wrong so I wont do it again, and when the car is back up and going I will have learned something and built something.

I don't see the point in having someone else make it for me, it's half the fun and later on I might like to do a bigger project my self... it's better I learn on this motor than one that will cost a fortune.

all sarcasm aside, I appreciate all the help and suggestions guys.

I have ordered the new rods, bearings and so on, I WILL take it all to a machinest to make sure it will all match perfectly, then I will throw it all together...

more on this to come I suppose.

Well I could go to an engine builder and throw more money at it, true... Or I could learn the lesson here about what went wrong so I wont do it again, and when the car is back up and going I will have learned something and built something.

I don't see the point in having someone else make it for me, it's half the fun and later on I might like to do a bigger project my self... it's better I learn on this motor than one that will cost a fortune.

all sarcasm aside, I appreciate all the help and suggestions guys.

I have ordered the new rods, bearings and so on, I WILL take it all to a machinest to make sure it will all match perfectly, then I will throw it all together...

more on this to come I suppose.

So you're having fun?

I prefer a bottle of scotch and a hooker but each to their own.

I believe I made the suggestion and listed all the parts (measuring equipment) you will need to get the job done properly. It's back in the other thread....which is now this one.

yeah your mistake was re-assembling it with factory bearings after having previous issues, I would say the crank was still bad when you re-assembled it. As mentioned by someone else already factory bearings will be OK as long as the crank has not sustained any damage, and I would say the clearances are out on whatever number it lost.

Pull it down again and take it to a machine shop/engine builder. Get them to check the crank/block/cradle and fit aftermarket bearings to suit the crank, depending on if they can polish it out or whatever. I myself would probably source another crank but and still take it to a machine shop to be checked.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • For these last 7 years of ownership, I've always had to use a small scissor jack under one of the front tow hooks to raise the front just enough so my low-profile jack fits under to reach my subframe jack point. I'm beginning to get annoyed of always having to do this. Are there any lower low-profile jacks that fit under the gtr lip on a dropped car?
    • Seat of the pants assessment of the new intake: The car is way less "doughy" when hitting the loud pedal, especially off idle when stopped or in traffic, I did use a cheapo lazer thermal thingo to measure the temp around where the pod filter got its air, it was between 55 - 60°C, in saying this the car was shut off and not moving, so the OEM intake pipe was not supplying any fresh air to where the pod was when the car was at least moving A weird bonus was induction noise on the throttle in the cabin increased a bit,  I was worried that I was actually going to lose some of that induction noise I love so much, outside though, when I got the daughter to do a WOT drive by pass for me, the induction noise has increased alot when on the throttle, not quite ITB doort, but well up there I'm extremely happy with the results and have been exploring the country roads in the region  As for house mods: 1.New front fence is up and is awesome, it really upgraded how the joint looks from the street, and the added security is nice 2. Electricians have replace some interior lights, and with more lighting in the garage, a few new motion detecting lights out the front above the garage, front room, and at the front door, which I have already found heaps helpful coming and going, also now has fancy pants CCTV all round the house The only hold point for power though is the solar and batteries due to supply issues, although this will happen over the next few weeks 3. I have done a heap of landscaping out the front and I'm almost ready to do a new small retaining wall with some nice blocks to replace the brick and cemented in rocks around the raised garden beds cemented in river stone "was the fashion at the time" the house was built. I currently have a pallet of retaining wall blocks and 2 bulka bags of 20mm blue metal to replace the wood chip that is in the raised garden beds around the house 4. I now have 3 big raised garden beds for out the back to grow some vegetables, about 70cm high, 200cm long and 100cm wide 5. My 2 compost bins are already pretty full with brown, green and kitchen waste from the landscaping I'vedone so far, but they will probably take a few months to break down, so anything else that gets chopped, trimmed, and kitchen waste will just start filling the base of the raised garden beds to about 30cm before I start throwing 40cm of good compost, and stuff, for the vegetables to grow in, I'll need a few ton of compost and soil, but the local supplier can sent me bulka bags of the stuff Basically the logs, wood chips and a few strategically placed rocks for drainage, will give the beds some good organic materials down low to break down over time, and they will hold moisture during the warmer months to save the water in my big arse water tank if we don't get alot of rain So, all in all, the car and house mods are going well, and I'm really enjoying being retired, I sleep in too 0700 and slowly plod around inside until I feel like actually doing anything, and only work in the yard for as long as want, which has actually been alot over the last few weeks,  although when you look at it, it seems that not a huge amount of work has been done,  until I look at the before I started the work pics Happy days and good times indeed 
    • hahaha yeah. Plan is to get side skirts and probably just rear pods. But going to do them one-by-one. I've got a set that I really like from RHDJapen, but that one isn't shipped to AU. So need to find someone who can get it for me
    • Here's an idea, answer the questions I asked you as they are trying to work out WHY the LSD will be binding up in a straight line.
×
×
  • Create New...