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Herald 13/60 noisy engine


steve327H
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Hi all, got a strange noise from the engine on my13/60 Herald which I'm hoping someone my be able to identify. It sounds just like a noisy layshaft bearing, but the gearbox is a freshly rebuilt 1500 unit with overdrive and the noise is still there with the clutch in and free wheeling but revving the engine. I've got good oil pressure and the engine ticks over lovely, just very rough sounding when revving. These engines are supposed to be good at revving but at 4000 it sounds aweful. I do have 0.035" thrust play, but there is no noise when using the clutch and even using a stethoscope there's no undue noises from the engine. This is my first Triumph so no idea how they should sound, but in all my experience on BMC A series I never had this issue. Are these engines just noisy?

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can you record and post the racket 

and no the engines are not noisy,   even at more than 4k.

thrust clearance is 0.006" to 0.014"     0.035"  is wildy excessive 

and you may have serious trouble with the locations on the rear main getting worn away...     its a sump off and look see

let us know whats going on , you can take sump off without removing engine 

Pete

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I'll try and record the noise and have already purchased a full gasket set ready for a full strip/inspection and rebuild. Just trying to see if anyone has any ideas before I delve inside. There's an old receipt for work done in the past for when it dropped the thrusts, but did they rebuild using "standard" thrusts? May need some special solid ones, i.e from Custom Thrust Washers - but are they UK based?

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if the crank contacts the rear main it can chew the lugs off the bearing cap and then theres even less to stop the half moon falling out 

many years ago i repaired a 1300FWD for   thrusts in the sump and the fly wheel up against the back plate

we had weld built up to re produce with some fettling the location lugs .. otherwise its a scrap block

it lasted for over 10years 

theres been a  few on here with the thrusts fitted about face including my engine .

pete

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