Rank: Guest
Groups: Guests
Joined: 2/09/2015(UTC)
Posts: 43,977
Was thanked: 5 time(s) in 5 post(s)
|
Okay guys I have stripped down my 308 to a short motor Long story but it all started out over a blown head gasket. Anyway I pulled it down I thought this motor was stock standard the pistons numbers say this Ra5002 030
Top 002 ej
I am assuming That the 30 means thou over size. My problem is I wanted to strip this block down and get it acid dipped to clean all the water galleries up, The lip on the bore is not much just a slight raise on 2 of the pot when I run my finger over them does this mean I can put some flat top acl pistons straight in at the current 30thou . So do I rebuild it or not I was just going to put a new cam in it and recondition the heads any thoughts thanks. I got quoted to rebuild as a short motor to flat tops bore and hone as well was suppose to be 30thou but I guess it would be 40 for 1500 bucks thanks
|
|
|
|
|
|
Rank: Veteran
Groups: Moderator, Registered, Veteran
Joined: 1/03/2005(UTC)
Posts: 14,901
Thanks: 1 times
Was thanked: 559 time(s) in 534 post(s)
|
You are right on the 30 thou. You need to get the bore size checked to see if it can be honed to within specs for a 30 thou piston. If not it will have to go more, but if the bores have gone oval it may not go 40 so you might have to go to 60 thou.
Did i |
_______________________________________________________
If we all had the same (good) taste, who would buy all the Fords? |
|
|
|
|
|
Rank: Guest
Groups: Guests
Joined: 2/09/2015(UTC)
Posts: 43,977
Was thanked: 5 time(s) in 5 post(s)
|
My main reason for pulling it down Byron was (well the head gasket went it) But the engine always ran hot I tried alot of things a friend suggested pulling it down and hot tanking it. When it was running it was a very smooth engine used little to no oil.
|
|
|
|
|
|
Rank: Veteran
Groups: Moderator, Registered, Veteran
Joined: 1/03/2005(UTC)
Posts: 14,901
Thanks: 1 times
Was thanked: 559 time(s) in 534 post(s)
|
See if you can take the short motor to an engine shop and get them to measure the bores with the pistons in them If they measure up OK you could pull it down being careful as to where each bearing and rod comes from, and get it cleaned. Then get it honed |
_______________________________________________________
If we all had the same (good) taste, who would buy all the Fords? |
|
|
|
|
|
Rank: Guest
Groups: Guests
Joined: 2/09/2015(UTC)
Posts: 43,977
Was thanked: 5 time(s) in 5 post(s)
|
byron when you say the crank may need a linish to me linishing is smoothing the cranks rough casting surface with a dremil and emery paper or am i wrong ? then let the machine shop check the rest cheers
|
|
|
|
|
|
Rank: Guest
Groups: Guests
Joined: 2/09/2015(UTC)
Posts: 43,977
Was thanked: 5 time(s) in 5 post(s)
|
I went to my performance guy today aint been there in years cause I moved house, I should of went there to start with. Anyway He wants me to take the block to him And he will be able to tell straight away what kind of condition the bores are in. I have de
|
|
|
|
|
|
Rank: Member
Groups: Registered
Joined: 2/12/2005(UTC)
Posts: 28
|
Gday Daniel. I have just completed a very similar rebuild on a HQ statesman 308 that has gone into my pano. I took the block to the local engine shop for a chem clean, also welsh plugs(brass)/cam bearings and it needed a rebore (30 thou). He also recon |
"If in doubt, Power out" |
|
|
|
|
|
Rank: Member
Groups: Registered
Joined: 2/12/2005(UTC)
Posts: 28
|
G'day Daniel. I have just completed a very similar rebuild on a HQ statesman 308 that has gone into my pano. I took the block to the local engine shop for a chem clean, also welsh plugs(brass)/cam bearings and it needed a rebore (30 thou). He also reco |
"If in doubt, Power out" |
|
|
|
|
|
Rank: Veteran
Groups: Registered, Veteran
Joined: 3/08/2007(UTC)
Posts: 1,902
|
Using emery cloth to "crank linish" is a bit agricultural.
- But have seen many people do it.
It doest cost much, and the potential for error is big by doing it yourself.
give it to the machine shop, $100?
A1 Bogan. |
Old holdens brought on the spot, quick decision, cash paid. |
|
|
|
|
|
Rank: Veteran
Groups: Registered, Veteran
Joined: 3/08/2007(UTC)
Posts: 1,902
|
Using emery cloth to "crank linish" is a bit agricultural.
- But have seen many people do it.
It does't cost much, and the potential for error is big by doing it yourself.
give it to the machine shop, $100?
A1 Bogan. |
Old holdens brought on the spot, quick decision, cash paid. |
|
|
|
|
|
Rank: Veteran
Groups: Moderator, Registered, Veteran
Joined: 1/03/2005(UTC)
Posts: 14,901
Thanks: 1 times
Was thanked: 559 time(s) in 534 post(s)
|
Linishing does use Emery, but its done on a rotating machine.
_______________________________________________________
If we all had the same (good) taste, who would buy all the Fords? |
_______________________________________________________
If we all had the same (good) taste, who would buy all the Fords? |
|
|
|
|
|
Rank: Veteran
Groups: Moderator, Registered, Veteran
Joined: 1/03/2005(UTC)
Posts: 14,901
Thanks: 1 times
Was thanked: 559 time(s) in 534 post(s)
|
Linishing does use Emery, but it's done on a rotating machine.
_______________________________________________________
If we all had the same (good) taste, who would buy all the Fords? |
_______________________________________________________
If we all had the same (good) taste, who would buy all the Fords? |
|
|
|
|
|
Rank: Veteran
Groups: Registered, Veteran
Joined: 3/08/2007(UTC)
Posts: 1,902
|
I was refering to DIY linish , you know 1 meter length of emery cloth , while rolling the crank along the carpet !
A1 Bogan. |
Old holdens brought on the spot, quick decision, cash paid. |
|
|
|
|
|
Rank: Guest
Groups: Guests
Joined: 2/09/2015(UTC)
Posts: 43,977
Was thanked: 5 time(s) in 5 post(s)
|
i thought useing a dremil and finish of with emery on the crank as a diy would be ok who could stuff that ? then use rust off from a hardware poured into the water jackets while turning the block on an engine stand also a diy ps you could also linish t
|
|
|
|
|
|
Forum Jump
You cannot post new topics in this forum.
You cannot reply to topics in this forum.
You cannot delete your posts in this forum.
You cannot edit your posts in this forum.
You cannot create polls in this forum.
You cannot vote in polls in this forum.
