112 replies to this topic

[AndyMiniMad.]

Dont worry about the bottom of the Drop gears... unless the big bearing in the gearbox housing is worn, You can replace the "nose" bearing by removing the rollers one by one from the plastic housing...then you need a bearing puller to remove the inner race...dont forget to wheek the circlip off first though...But if its in good condition I would just give it a good clean and refit...If you replace the bearing you will have to replace the outer race in the transfer housing..which is a pig of a job...As for the idler gear, the ones ive fitted have just gone in either way. I have heard some people say that they are sided but I cant see any difference...same length stud either side as far as I can tell...

Edited by AndyMiniMad., 26 October 2011 - 06:31 PM.

[firefox]

Dont worry about the bottom of the Drop gears... unless the big bearing in the gearbox housing is worn, You can replace the "nose" bearing by removing the rollers one by one from the plastic housing...then you need a bearing puller to remove the inner race...dont forget to wheek the circlip off first though...But if its in good condition I would just give it a good clean and refit...If you replace the bearing you will have to replace the outer race in the transfer housing..which is a pig of a job...As for the idler gear, the ones ive fitted have just gone in either way. I have heard some people say that they are sided but I cant see any difference...same length stud either side as far as I can tell...

The gearbox is fine bud quite as a mouse, it was just the idler gear i was worried about it landed in the bucket and i dont know which way around it goes

[firefox]

Could you please check the duplex timing chain C-AJJ3323 is this worth replacing or keep my orinal cogs and just fit a new chain
Thanks

[Cooperman]

If you already have a duplex chain just change the chain. The sprockets are normally fine. If you want to use high revs with a Duplex, don't fit the tensioner as they can break up.

[Cooperman]

Damn computer. It froze, then did a multiplke reply with the same answer. How the hell do you cancel a post?

Edited by Cooperman, 26 October 2011 - 10:50 PM.

[firefox]

If you already have a duplex chain just change the chain. The sprockets are normally fine. If you want to use high revs with a Duplex, don't fit the tensioner as they can break up.

How can i tell the difference, and how did your disel rebuild go today

Edited by firefox, 26 October 2011 - 10:56 PM.

[Cooperman]

OK. If you've got a Duplex chain there are two widths of chain manufactured as one and each sprocket has two rows of teeth. If you have just a single row chain, it's up to you whether you go to a Duplex or just change the existing chain and, ideally, the tensioner. In practice, a single row is fine unless you want to use seriously nhigh revs.
The work on the big diesel went fine and it's running like a dream. Thanks for asking. Gee, it's a big, and I mean BIG engine.

[firefox]

Thanks bud , i am trying to order my parts i am a bit lost with the gaskets and oil seals cant seem to find that big half moon one front of engine crankshaft does it come in the engine gasket set

[AndyMiniMad.]

Yes It comes in the engine gasket set..I think the only gaskets that dont come in the engine set are the timing chain gasket and the rocker cover gasket....Oh and the cylinder head gasket...

[R1minimagic]

The work on the big diesel went fine and it's running like a dream. Thanks for asking. Gee, it's a big, and I mean BIG engine.

There's big and there's BIG

[AndyMiniMad.]

A big boat me thinks....

[firefox]

Super thanks bud, cooperman are you pulling our leg

[firefox]

Hi buds which cam followers should i get 44grams with oil drain holes i noticed the ones i removed had sludge in the bottom
will the drain oil holes eliminate this or prolong the build up

I have also noticed the gasket set only has 1 half moon seal is this all i require because i cant find the other half on mini spares web site ??

Also after seeing the BIG engine who has the biggest spanner

Edited by firefox, 27 October 2011 - 09:29 PM.

[Cooperman]

I've never used the cam followers with the small drain holes as it seems to me that a hole at the base of the follower is a potential stress raiser. The standard ones are fine.
There is just one 'half-moon' seal so you are OK there.
I used to deal with W.H. Allen at Bedford who made marine engines. They had a V12 tugboat engine and each piston was about 15" diameter. Fantastic engineering.

[firefox]

Ok Bud i agree with that thanks, 15'' pistons some tool kit required, put's things in prospective mini engines must be like lego to you