[burls]

The ol zook has now become very noisy with a knocking sound coming from the sump area (or sounds that way). So I pulled the sump off, all the conrods seemed ok so took the crank caps off and found the forward one had a score in it didnt seem bad enough to make the loud knock. Didnt have time to have a real good look as I did this before going to work this morning

So I'll get some new bearings and throw them in tomorrow if I have time.

Any other suggestions or anything I should look at while I'm in there

[royce]

get some plastigauge from where you get the bearings, you use this to measure your bearing clearance to see if its ok or not

[burls]

Yeah thanks Royce thats a good plan, I'm gonna have a better look tonight as I just price the mains and big ends and they arent cheap. I just wanna keep this engine alive til I go the G16

[alex]

this may help finding what the noise is...

type: sound: mostly heard during:
Ring noise: high pitched rattel or clicking. acceleration

Piston slap: Hollow, bell-like. cold engine operation and is louder during acceleration

Piston pin knock: sharp metalic rap. hot engine operation at idle

Main bearing noise: Dull, steady knock. louder during acceleration

Rod bearing noise: light tap to heavy nocking or pounding. idle speeds and low load higher speeds

Thrust bearing noise: heavy thumping. irregular sound. may be heard only during acceleration

Tappet noise: light regular clicking. mostly heard during idle

Timing chain noise: severe knocking. increases with increase in engine speed

[burls]

Thanks Alex

Was also thinking of the timing chain but I didnt think it would make this sound. Had to work late last night so may get into it today and find the culprit

[Lokidog]

^ G13's have timing belts.^

[burls]

Thanks Lokidog didnt know that,

I've just pulled the bigends off and found one slightly scored. still dont know if its enough to make the knocking sound. Doesnt appear to be any piston pin slop either.
ah well might just have to change them out and see

[alex]

Lokidog wrote:

^ G13's have timing belts.^

yep i just put that there for future reference

[burls]

Well should of had a better look in the sump. Found a nice piece of piston skirt, oh well anyone gotta a spare second hand piston?

[steak_knife]

burls wrote:

Well should of had a better look in the sump. Found a nice piece of piston skirt, oh well anyone gotta a spare second hand piston?

really??

I have some, never looked to hard at em so wouldn't know if they are 1.3, 1.6, but if your going to use old part's, come get em...

[burls]

This is the culprit of the knock. Take you up on that offer Stekky.

http://i864.photobucket.com/albums/ab20 ... piston.jpg

[gusbus]

i have 4 brand new pistons here from g13a standard size carton of beer they r yours

[Crunched]

burls wrote:

This is the culprit of the knock. Take you up on that offer Stekky.

http://i864.photobucket.com/albums/ab20 ... piston.jpg

How's the bore look?

[burls]

I think I caught it in time crunched, so should survive for a while
Gus I wouldnt like to break up a set, so will try for a good used one first, by the way mines a G13BA so not sure if the pistons are the same

[JrZook]

burls wrote:

I think I caught it in time crunched, so should survive for a while
Gus I wouldnt like to break up a set, so will try for a good used one first, by the way mines a G13BA so not sure if the pistons are the same

Well while you have got it pretty much totally apart why not give all the cylinders a quick hone, slap a new set of slugs and ring in?

How many k's on it btw?

[burls]

its done about 200k didnt want to do anything to it or spend anything on it as I want a 1.6. Anyway getting a piston from want33s. and hopefully thats the last I have to spend on it. i did send the hone done just for shits and giggles

[burls]

well, thanks to want33 for the piston its all back together and made some noise tonight. yahoo