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engine probs 3tj 4dx
Posted: Thu Jul 01, 2010 4:37 pm
by hipringle
well took the carbs etc off & all the plugs out, spins over nice & quiet till I put a compression tester on number 2 cylinder then I get a knocking sound, doesnt really happen to any other cylinders, does that seem like big end bearing ?
Re: engine probs 3tj 4dx
Posted: Thu Jul 01, 2010 7:02 pm
by Evilchicken0
I though they ran in shells

Re: engine probs 3tj 4dx
Posted: Thu Jul 01, 2010 7:30 pm
by hipringle
poss new shells then? I,ve a good bottom end on a spare engine I might swap over, nowt ever straight forward for me is there lol.
Re: engine probs 3tj 4dx
Posted: Thu Jul 01, 2010 9:50 pm
by rrsp
the bottom end doesnt come off that easy its a full re-build you will have to do,as the shells wont be correct for the crank,you have to do a full strip down to replace the shells,on a race bike you leave the 2 bolts out which are under number 2+3 pistons ,so you can take the bottom end off with out taking the head & pistons out ! (giving away all my secrets )

Re: engine probs 3tj 4dx
Posted: Fri Jul 02, 2010 5:25 am
by hipringle
Thanks rrsp, I,m over the moon now.
I,ll take the sump off later & have a peep.
Re: engine probs 3tj 4dx
Posted: Fri Jul 02, 2010 6:51 am
by Kayla850
hipringle wrote:Thanks rrsp, I,m over the moon now.
I,ll take the sump off later & have a peep.
Hi Mark,
Sorry to sound like a vulture

but if the engine's a write off and you want to move the whole rolling chassis on, I'll have it :) I want a 3TJ to try the TRX engine in

Re: engine probs 3tj 4dx
Posted: Fri Jul 02, 2010 1:38 pm
by hipringle
Kayla850 wrote:hipringle wrote:Thanks rrsp, I,m over the moon now.
I,ll take the sump off later & have a peep.
Hi Mark,
Sorry to sound like a vulture

but if the engine's a write off and you want to move the whole rolling chassis on, I'll have it :) I want a 3TJ to try the TRX engine in


, I feel violated
I,d like to try & get it sorted one way or the other Kayla, if I dont have any sucess I,ll let certainly you know me dear, ta.