Help timing chain.

[CMF_Geoff_S]

Hi, new here.

Right i have removed all the old timing chains and tensioners.

The new kit arrived today but the chains only have one silver link. and no bronze or yellow markings.

How do i set the valve timing correctly, i have got it all at tdc before i removed the chains.

Anyone got any pics or diagrams

Thanks

 

[CMF_frank2]

geoff

the inlet and exhaust lobes need to be sort of facing each other but holding the valves open about 1mm, on tdc ( the 2nd notch from the left on the pulley )
if thats any help ?

frank

 

[CMF_Geoff_S]

Thanks i understand that, but wouldn't you have thought that they would have put marks on the cylinder head to align the notches on the cam wheels.

But if its slightly out won't the engine run crap and might do long term damage.?

 

[CMF_frank2]

geoff

yes not very helpful of nissan eh !
i always turn the engine over a couple of times (plugs out) to check theres no valve contact
when i did mine,a 5thou feeler guage was starting to get trapped at about 20deg btdc on the inlets and 20deg atdc on the exhausts

 

[CMF_Geoff_S]

Good tip that frank. ;O)

 

[CMF_frank2]

geoff

thats 1.3 cams btw, 1.0 cams are a bit tamer (so probably have less overlap)

frank

 

[CMF_Geoff_S]

Cheers.

 

[CMF_Geoff_S]

Frank do you know what the torque settings are for the camshaft sprockets and the middle sprocket bolt?

 

[CMF_frank2]

geoff

113 nm/85 lbf cams 51/38 idler
you sorted then ?

frank

 

[CMF_Geoff_S]

Its all stripped and ready, just the weather letting me down now.

 

[CMF_frank2]

geoff

i could,nt be carless whatever the weather
i,d be out there, wrapped up, gloves on, getting it back on the road !

frank

 

[CMF_Geoff_S]

Its freezing but, also raining allday. maybe tomoro.

 

[CMF_Geoff_S]

Managed to get the new chains installed along with all the other bits. Turned the engine over a good few times no contact. The tensioners are moving in and out, i guess that's because they is no oil pressure.

Do i need to prime the oil pump? When i changed an oil pump on a ford probe i packed it with Vaseline.

 

[CMF_frank2]

geoff

i doubt it, the pump,s low down eh
hope you did,nt get frostbitten ?

frank

 

[CMF_Geoff_S]

Not frostbitten but on the verge of hyperthermia. :O)

Another question, Does part of the crank pully fit in the front oil seal?

 

[CMF_frank2]

geoff

ye you should have a shiny band, were its been running on the seal lip

frank

 

[CMF_Geoff_S]

Thank god for that i thought i had done something wrong. I put a new seal in too. Thanks again frank. Sump back on tomoro.

 

[CMF_Geoff_S]

well its all back together, just need oil and filter. Whats the best oil to get 10/40 semi syn?

 

[CMF_frank2]

geoff

sure !
my super s (132000mls 80000 of which i did) was "treated" to 2 oil changes of cheepo 10/40 to no apparent ill effect

frank

 

[CMF_nz_aj]

It takes a long time for the oil to fill up the gallery's & get up to pressure.
Take the spark plug leads off & crank it over for a while or until the oil light goes out.

You could have transferred the marks from the old chain onto the new one.

 

[CMF_Geoff_S]

Yes i cranked it over with the dizzy disconnected and the oil light went out. The old timing chain had no marks so i made a note of the links between, the indents on the sprockets.

 

[CMF_sarge3uk]

i no how you feel with british weather at the minute its horrible

im dreading when it comes to restarting my rebuild its taking ages for everything im not happy

 

[CMF_Geoff_S]

I'm sure it will be fine sarge. ;O)

 

[CMF_sarge3uk]

cheers mate looking at it my engine has had work done already because it isnt a grey seal its read what you get from engineers but its only were the timing chain is

 

[CMF_Geoff_S]

Yes the seal i bought was red. yours must have had timing chain replacement sometime.

 

[CMF_sarge3uk]

so thats one less job for me to do

 

[CMF_Geoff_S]

Started it up today started first turn of the key and runs ok, but they is a slight intermittent scraping type noise from the cam chain area, but no where has near has bad has it was.

Maybe it will settle down after its had time to bed in.

 

[CMF_frank2]

your the man geoff !

 

[CMF_sarge3uk]

good to here mate well done mite be abit try of oil or something like that see if it stays after a gud run

 

[CMF_Geoff_S]

Thanks frank, Sarge yes i will give it a good run, well our lass will its her car. :O)

 

[CMF_sarge3uk]

u take it for a spin and show it a good time you no you want to

 

[CMF_Geoff_S]

They is a big difference from my 3000GT twin turbo, ;O)

 

[CMF_sarge3uk]

my dad let me drive his skyline mad me sad so thats what made me want to turbo the micra ha ha