5.7 tune up specs

[lynnboy021]

ok so i have my motor apart cuz i put in new head gaskets and goinging to install new lifters and spark plugs. my ? is manual says timing should be at 8 btdc and dwell at 29+-2 point gap at 0.018in and valve lash at 0 then 1 turn (yes now i know Don S) o lash then 1/2 turn and last how many qts my motor takes? book says 5qts w/out filter and 6 w/filter? my dipsick i think its the wrong one cuz it wont fit oh and my dipstick tube bolts under the oil pan so anyone know where i can get a dipstick for a omc 5.7 1988? just asking to see if thats the right tune up or you guys have better specs...

 

[lynnboy021]

Re: 5.7 tune up specs

sorry i forgot to add i need to buy a timing light should i just buy a timing light or a timing light with advance? talking about this one http://www.harborfreight.com/timing-light-with-advance-40963.html

 

[Joshua Nichols]

Re: 5.7 tune up specs

sorry i forgot to add i need to buy a timing light should i just buy a timing light or a timing light with advance? talking about this one http://www.harborfreight.com/timing-light-with-advance-40963.html

Don't think you will find one cheaper... Maybe a garage sale...

 

[lynnboy021]

Re: 5.7 tune up specs

well just for the timing light with no advance is only 15 but if i want the advance its 28. i think sometimes you have to set advance timing or something so that $28 timing gun can do it but the $15 cant.

 

[Joshua Nichols]

Re: 5.7 tune up specs

I don't think you need the one with the advance... They are cool if you run into a engine with no timing marks on a tab... I never had one.. Always used this ol ratty looking thing I have had for years...

 

[lynnboy021]

Re: 5.7 tune up specs

lol hey what do you think of my specs are they good?

 

[Joshua Nichols]

Re: 5.7 tune up specs

lol hey what do you think of my specs are they good?

Did you get them from your book?? Mine are a hair different

 

[lynnboy021]

Re: 5.7 tune up specs

lol yes here we go againe lol

 

[Joshua Nichols]

Re: 5.7 tune up specs

lol yes here we go againe lol

What manual do u have?

 

[lynnboy021]

Re: 5.7 tune up specs

a omc manual it does not say what year it covers but the wire diagrams are the same on my motor

 

[Joshua Nichols]

Re: 5.7 tune up specs

LOL that helps... I looked and they show different specs for different years.....

 

[lynnboy021]

Re: 5.7 tune up specs

do u have a 88 omc manual?

 

[Joshua Nichols]

Re: 5.7 tune up specs

do u have a 88 omc manual?

No but I saw the factory 88 on ebay for like 70 bucks or something

 

[lynnboy021]

Re: 5.7 tune up specs

hey thanks for your help but i dont know what time its on your end but its 3:15 her in ma and i need to wake up at 10 am so talk to you later..

 

[lynnboy021]

Re: 5.7 tune up specs

so anyone else thinks my specs are ok???????

 

[bruceb58]

Re: 5.7 tune up specs

Buy the timing light with the advance feature. With that one, you can determine if the distributor is giving you your correct total advance. It also makes setting the timing way easier because you only need to find the the TDC mark.

Make sure you use a dwell meter when setting your dwell and set it first before you adjust your timing.

Your dwell angle and timing specs are correct.

Regarding your dipstick and tube, OMC changed those many times over the years including what threads were on the pan. You have the original tube now? These dipsticks/tubes are one of the irritating things you are going to be up against with OMC being out of business.

 

[lynnboy021]

Re: 5.7 tune up specs

what timing setting will you do 3 6 or 8 btdc?

 

[bruceb58]

Re: 5.7 tune up specs

8 with a total advance of 29 @ 3000RPM.

 

[lynnboy021]

Re: 5.7 tune up specs

advance of 29 at 3000rpm? sorry dont know anything about advance

 

[bruceb58]

Re: 5.7 tune up specs

The distributor increases the advance over RPM. That is why I recommend getting the advance timing light. In the manual, there is a chart that shows what the total advance is vs RPM.