The Triumph Dolomite Club - Discussion Forum

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PostPosted: Sat Aug 15, 2020 7:16 pm 
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Joined: Wed Jun 14, 2017 12:24 pm
Posts: 67
Hi
They don’t look too bad, but I am having trouble locating the rest and the main ones,
Hoping I wasn’t stupid enough to get rid of them,
I will keep looking tomorrow,

Thanks
Darrell

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1977 Dolomite 1850HL
1987 Opel Manta GTE
1987 Opel Manta 1800 Berlinetta.


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PostPosted: Sun Aug 16, 2020 11:13 am 
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Quote:
Bugger. Sorry for being right, i thought it sounded big-endy...
Check the mains as well, also did you measure the end float?
It might be better to pull the crank, get it measured and make sure it does not need taking down to the next undersize. At the very least get some plastigauge to check the clearances are correct with the new shells before you run it again.
Just wondering what should the gap be with the plastigauge?
I am still having problems finding the original bearings🙁
I will get some Plastigauge to see if the main bearings have been done before.

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1977 Dolomite 1850HL
1987 Opel Manta GTE
1987 Opel Manta 1800 Berlinetta.


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PostPosted: Mon Aug 17, 2020 9:01 am 
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Joined: Wed Nov 15, 2017 3:35 pm
Posts: 956
Location: Filey, North Yorkshire
Do you have a friendly, trustworthy local machine shop?
If I was in your position I'd drop the crankshaft off at my local place (W. Brown in Halifax) and just ask him to check and measure it and then he'd phone me to let me know if he recommended:
a) nothing
b) polish
c) regrind (and to what size)
Takes the guess work out of it all.
Cheers,
Sam

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PostPosted: Wed Sep 02, 2020 6:57 pm 
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Hi

I have replaced the Main and Big End bearings with the +0.02 ones, and it sounds a whole lot better.
No rumbling present at all. Thanks again for all your help diagnosing that.
The end float was fine, I was using the old thrust washers so thought this might be the case.

However I was running the engine and intermittently I get a strange noise from the clutch area.
the noise comes and goes, I tried pulling the release bearing away and I can visibly see it is not turning at all in the away position, but the noise I still there, so it is not that,
The noise is present with or without the clutch pressed, but can disappear all of a sudden.
Any ideas what it could be? and more to the point should I be concerned?
Thanks, Darrell

https://youtu.be/LUOZkXc9kNk with the noise

https://youtu.be/HaqxTTEaAww Without the noise

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1977 Dolomite 1850HL
1987 Opel Manta GTE
1987 Opel Manta 1800 Berlinetta.


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PostPosted: Wed Sep 02, 2020 11:36 pm 
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Joined: Thu May 17, 2012 9:34 pm
Posts: 867
Sounds like the starter is catching the ring gear. I mentioned this before - you could hear it on the first set of videos. Try a spacer between the starter and backplate, to move the starter pinion further from the flywheel.


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PostPosted: Thu Sep 03, 2020 10:49 am 
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Joined: Wed May 17, 2017 6:28 pm
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Location: NANTWICH.
Hi Darrell, the engine sounds nice now 8) What do you do to make the noise disappear?

Tony.

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PostPosted: Thu Sep 03, 2020 8:12 pm 
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Joined: Wed Jun 14, 2017 12:24 pm
Posts: 67
Hi
I fitted a spacer as you suggested, and re started, all ok at first but the noise came back after a little while,
To make the noise disappear, I don’t have to do anything, it just goes. By itself, Once gone it seemed to stay gone, in other words, i get the noise usually after a cold start, but it goes usually after about 4 or five minutes running.
I have come to the conclusion it’s the clutch unit, it was a new old stock Borg and beck one. But as everything seems to work ok with it I am hoping it will settle down when I start to use it.
Everything was torqued down correctly when fitted so I am confident nothing is lose.

Thank again
Darrell.

_________________
1977 Dolomite 1850HL
1987 Opel Manta GTE
1987 Opel Manta 1800 Berlinetta.


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