Technical Compression test result

[KRaikkonenNo1]

Hi, did a compression test today, all seems fine imo, what do you guys reckon?

Dry -- psi

1 - 180
2 - 185
3 - 182
4 - 180

Wet -- psi

1 - 210
2 - 230
3 - 220
4 - 225

Only slight anomaly could be wet no.1 but I still think that's within range.

Could someone confirm this?

Thanks in advance.

 

[KRaikkonenNo1]

Condition of sparks, nice and chocolatey to me

 

[oldhammer]

plugs shouid be a sandy/grey colour,

check gaps, if you drop these down the pot's. (seen alot do it )
it closes the gap,

compression looks ok, for age of car..

 

[KRaikkonenNo1]

plugs shouid be a sandy/grey colour,

check gaps, if you drop these down the pot's. (seen alot do it )
it closes the gap,

compression looks ok, for age of car..

're-checked gaps and 're adjusted slightly,

I'm happy with the compression tbh...not sure where to look now in terms of my issue?.....

 

[oldhammer]

I'wouid check 'Timing' next,
its easy to do, just remove plugs 1 & 2 and silver cap off camcarrier,
you can use my timing tools to check if you want..it will save buying a set, :idea:

 

[KRaikkonenNo1]

I'wouid check 'Timing' next,
its easy to do, just remove plugs 1 & 2 and silver cap off camcarrier,
you can use my timing tools to check if you want..it will save buying a set, :idea:

Good idea, timing would seem most logical next step :thumbup:

That's sounds great if you wouldn't mind! Would get them back to you as soon as I have checked it! :thumbup:

 

[oldhammer]

'Send us a pm.later with a address to post to and iwill get them
sent out,

if your near a scrapyard, grab a interior 'mirror, off any old car,
it makes checking the timing easier, 'ask corky, when ibrought the mirror,he musta thought iwas going to have a quick shave before starting the job,

 

[KRaikkonenNo1]

'Send us a pm.later with a address to post to and iwill get them
sent out,

if your near a scrapyard, grab a interior 'mirror, off any old car,
it makes checking the timing easier, 'ask corky, when ibrought the mirror,he musta thought iwas going to have a quick shave before starting the job,

Cheers!

Haha I think I've got one lying around, why exactly does it help?

 

[oldhammer]

With no mirror, its 'very awkward to see the 'Timing slot on the exhaust cam,
so..you can end up turning and turning the crankpulley ..umpteen times,

with the mirror its alot easier,

 

[oldhammer]

If 'you look in 'corkys thread you will see a diagram i posted in there,
on the 'timing,

 

[KRaikkonenNo1]

If 'you look in 'corkys thread you will see a diagram i posted in there,
on the 'timing,

Will pop over there in a bit, (think I seen it anyway),

You will have to send us simplified instructions on how check timing via pm

 

[oldhammer]

Will pop over there in a bit, (think I seen it anyway),

You will have to send us simplified instructions on how check timing via pm

Go on YEWtube, type in 'Fiat punto 1.2 16v timing, look at the one with the 'red engine,

 

[KRaikkonenNo1]

Go on YEWtube, type in 'Fiat punto 1.2 16v timing, look at the one with the 'red engine,

Ok, got some research to do later then

 

[oldhammer]

This,

 

[KRaikkonenNo1]

This, https://www.youtube.com/watch?v=jEY1OmxGK3A

Thanks!

 

[KRaikkonenNo1]

This, https://www.youtube.com/watch?v=jEY1OmxGK3A

Seems simple enough, so that is all I will need to do for my timing?

Btw what is he turning to get the rods to equal length?

 

[fingers99]

Crank pulley (nut on the end).

 

[KRaikkonenNo1]

Crank pulley (nut on the end).

Cheers!

Probably 2 of the only things I wasn't too confident of doing were 1) a compression test and 2) checking the timing...

The compression test was easy, sure I'll be able to do the timing - anything particular to look out for?

 

[Ziggy122]

180 psi dry is fairly good, espically you dont have a HUGE variance between

As for going upto 210 when wet
it depends on a few things like

How much oil was put in
What grade of oil for example, a thick oil will seal but not seap, meaning it takes up room in the cylinder and creates more compression

A thin oil will seap down and seal, taking less room up and give an increased reading but not by much



180 dry is a good reading

Ziggy

 

[KRaikkonenNo1]

180 psi dry is fairly good, espically you dont have a HUGE variance between

As for going upto 210 when wet
it depends on a few things like

How much oil was put in
What grade of oil for example, a thick oil will seal but not seap, meaning it takes up room in the cylinder and creates more compression

A thin oil will seap down and seal, taking less room up and give an increased reading but not by much



180 dry is a good reading

Ziggy

I put teaspoon/ 5ml in each (although there may have been slightly less in cylinder 1),

Oil grade is 5w 40, same as current engine oil