Strange noise ?

Strange noise ?

Author
Discussion

Gee Boo

Original Poster:

63 posts

143 months

Tuesday 16th June
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No not at all, we have repositioned the tensioner pulley midway between the bottom pulley and alternator and it all looks and performs well ....so far !!

plasticpig1972

29 posts

2 months

Saturday 27th June
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Please could you post a photo for us to see
Thanks
Alan

Gee Boo

Original Poster:

63 posts

143 months

Thursday 16th July
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Hi,it’s me...back again!!! This TVR 3000m running a Ford V6 continues to run uneven and hiccups along at low revs !! Acceleration is great but when driving at a slower speed it’s very hiccupy and uneven... It has new distributor cap/ leads and plugs ! Carburetor is a Weber 38 DGMS and have tried 50/55 and 60 idle jets and extensively adjusted the idle screws I’ve changed the power valve and both the Other diaphragms , checked the float twice !!! Have checked timing and today disconnect the vacuum pipe to the dizzy vacuum (which didn’t have any effect ??!) HELP !! Can anyone shed any light on what can be the problem as I’m truly at a loss .......???????

Gee Boo

Original Poster:

63 posts

143 months

Thursday 16th July
quotequote all
Ooo and I’ve fitted a fuel pressure regulator too !!!

Penelope Stopit

6,944 posts

65 months

Thursday 16th July
quotequote all
You may well have found the problem but possibly lost faith in your trouble-shooting

Disconnecting the vacuum advance unit should make a difference but will only make a difference when there is a vacuum at the pipe to it

Check there's definitely suction at the distributor end of the vacuum pipe, you may have to raise the revs a little to gain vacuum

Once vacuum is at the vacuum unit it should make a difference when disconnecting the pipe from it

With the cap off the distributor , applying a vacuum to the vacuum unit should move the base plate inside the distributor and you will see it move

Perhaps there's no problem with the vacuum side, the base plate may be tight and not moving

A vacuum pump is handy for applying a vacuum to the vacuum unit for testing

Gee Boo

Original Poster:

63 posts

143 months

Thursday 16th July
quotequote all
Thanks for your reply, I can see the base plate move when I apply vacuum to the dizzy vacuum!? But will continue to investigate this further !! I do have a suspicion that the offside idle jet gallery may be restricted or possibly blocked but not sure how to check this out !!!!!

Gee Boo

Original Poster:

63 posts

143 months

Thursday 16th July
quotequote all
Thanks for your reply, I can see the base plate move when I apply vacuum to the dizzy vacuum!? But will continue to investigate this further !! I do have a suspicion that the offside idle jet gallery may be restricted or possibly blocked but not sure how to check this out !!!!!

V6 Pushfit

15,679 posts

66 months

Thursday 16th July
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My V6 does just the same when cold - I think it’s the auto choke flap position which at some stage I’ll get round to adjusting....

Gee Boo

Original Poster:

63 posts

143 months

Thursday 16th July
quotequote all
After reading MY reply back to myself I’ve now taken the Carburetor off and tomorrow it’s gonna be totally stripped down blown through and re assembled 🤞

Gee Boo

Original Poster:

63 posts

143 months

Thursday 16th July
quotequote all
After reading MY reply back to myself I’ve now taken the Carburetor off and tomorrow it’s gonna be totally stripped down blown through and re assembled 🤞

Gee Boo

Original Poster:

63 posts

143 months

Friday 17th July
quotequote all
My buddy took the Carburetor away last evening and after a full strip down and chemical clean, Blow through with an airline and re assembly with lube to all moving parts We bolted it back on fired it up and with small adjustments it’s finally running fabulously well !!!! Thanks to everyone’s contributions but it’s so exciting to have sorted this gremlin out and massive thanks to the man who sorted this out !!!!!... enjoy your driving and tinkering !!!

plasticpig72

1,595 posts

105 months

Friday 17th July
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Good to know your car is running well.
Could you please post a photo of your fan Belt tensioner that you installed.
Cheers
Alan

Gee Boo

Original Poster:

63 posts

143 months

Friday 17th July
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here are 3 photos Alan....2 more to follow..

Gee Boo

Original Poster:

63 posts

143 months

Friday 17th July
quotequote all

Gee Boo

Original Poster:

63 posts

143 months

Friday 17th July
quotequote all

plasticpig72

1,595 posts

105 months

Saturday 18th July
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Thanks,
For photos of Tensioner very nice job.
Do you think it's possible to give details.
Parts used and so on.
So easy to replace when needed.
Cheers
Alan

Gee Boo

Original Poster:

63 posts

143 months

Saturday 18th July
quotequote all
Hi, the actual tensioner wheel /pulley was attached to the alternator adjuster arm and on the evening this all happened ‘we’ made the bracket and literally repotioned it with what was at hand !!!! I have no part numbers as it was mainly made up there and then and the pulley was there already and repositioned !!!! (Fan belt is a gates 1275)

plasticpig72

1,595 posts

105 months

Sunday 19th July
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Many thanks.
Have fun driving with a big smile
Alan