Question about engine rebuild Stretch bolts

[ilovejapcrap]

I know I need knew head bolts.

But do I need new bolts for underneath the engine that bolt the crank together ?

[ilovejapcrap]

Anyone

[jonbill]

I reused my main and rod bolts. Their diameter was still > the minimum. Can't tell you what that diameter is tho  s:) s:)

[Carolyn]

rod bolts: 6.4 mm (0.252 in.)
main bolts: 7.3 mm (0.287 in.)

[jonbill]

rod bolts: 6.4 mm (0.252 in.)
main bolts: 7.3 mm (0.287 in.)

:thumbs:

[ilovejapcrap]

Ahh thankyou

[ilovejapcrap]

So if it measures less than 6.4 ok or if it measures more than 6.4 ok ?

Mine seem to measure 6

[jonbill]

It should be 6.4 or more. Are you using calipers to measure it? If so I think you need new bolts.

[ilovejapcrap]

Yes but crap calipers going to get some better ones today.

I seem to be finding them hard to buy new!

What should o search for

[Carolyn]

Thousands of them on Ebay.  6 mm is not quite believable.

[ilovejapcrap]

I'm talking about bolts for crank not for head Carolyn.

What are they called I'm assuming crank bolts ?

[Carolyn]

I meant vernier calipers.

[ilovejapcrap]

Lol ahh

[Call the midlife!]

I've got some verniers mate, if you haven't already replaced yours.


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[ilovejapcrap]

It's sorted mate bottom end back together.

Head next !

[Carolyn]

You're cracking on!  The bloody head is more work than the whole of the rest of the engine.  no doubt you will march through!

[ilovejapcrap]

So much to do Carolyn so little time.

Christ I hope it works I've sunk some money in last week !

[ilovejapcrap]

P.s having a best mate who is a mechanic helps ALOT I feel like I've got a years knowledge on a week !

[Carolyn]

It'll work.  No prizes for 'quick', though.  Double check as you go.  Engines want to run.