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SORN
by OldSkrote - 31/07/25 02:07 PM
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by Rex_tulips - 30/07/25 07:59 PM
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Forums34
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Aug 24th, 2023
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Joined: Aug 2012
Posts: 136
L - Learner Plates On
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OP
L - Learner Plates On
Joined: Aug 2012
Posts: 136 |
I notice some driveline movement when releasing the clutch during hard acceleration with my 57' +4. The engine mounts were recently replaced and the Moss tranny mounts seem to be good as I don't get any movement while rocking the driveshaft. Any thoughts as to what could be causing this?
1959 4/4 - sold
1957 +4 - sold
2017 M3W - sold
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Joined: May 2014
Posts: 5,111 Likes: 56
Black Rat Charter Member
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Black Rat Charter Member
Joined: May 2014
Posts: 5,111 Likes: 56 |
I notice some driveline movement when releasing the clutch during hard acceleration with my 57' +4. The engine mounts were recently replaced and the Moss tranny mounts seem to be good as I don't get any movement while rocking the driveshaft. Any thoughts as to what could be causing this? Hard acceleration ? 
Keith
2013 narrow bodied + 4 Ruby.
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Joined: Aug 2012
Posts: 136
L - Learner Plates On
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OP
L - Learner Plates On
Joined: Aug 2012
Posts: 136 |
I notice some driveline movement when releasing the clutch during hard acceleration with my 57' +4. The engine mounts were recently replaced and the Moss tranny mounts seem to be good as I don't get any movement while rocking the driveshaft. Anym thoughts as to what could be causing this? Hard acceleration ? Well as much as a stock 2 liter Triumph boat anchor will put out when shifting at 5K RPM.
Last edited by JFP; 11/03/17 10:24 PM.
1959 4/4 - sold
1957 +4 - sold
2017 M3W - sold
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Joined: Apr 2014
Posts: 5,181 Likes: 2
Charter Member
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Charter Member
Joined: Apr 2014
Posts: 5,181 Likes: 2 |
Check the the U bolts on the back axle,they are prone to snapping.Can cause all sorts of strange movement when the axle comes loose.
.+8 Now gone for a 1800 4/4. Duratec in bright yellow.
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Joined: Dec 2009
Posts: 35,796 Likes: 474
Tricky Dicky Member of the Inner Circle
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Tricky Dicky Member of the Inner Circle
Joined: Dec 2009
Posts: 35,796 Likes: 474 |
Are the UJ's on the prop shaft o.k. ?
2009 4/4 Henrietta
1999 Indigo Blue +8
2009 4/4 Sport Green prev
1993 Connaught Green +8 prev
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Joined: May 2014
Posts: 2,774
Talk Morgan Expert
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Talk Morgan Expert
Joined: May 2014
Posts: 2,774 |
How much backlash in the diff?
Steve
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Joined: Aug 2012
Posts: 136
L - Learner Plates On
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OP
L - Learner Plates On
Joined: Aug 2012
Posts: 136 |
U-joints are good and the axle backlash is within spec. I'll check the axle U bolts tomorrow when I can get underneath. Thanks everyone!
1959 4/4 - sold
1957 +4 - sold
2017 M3W - sold
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Joined: Jan 2013
Posts: 1,148 Likes: 18
Has a lot to Say!
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Has a lot to Say!
Joined: Jan 2013
Posts: 1,148 Likes: 18 |
hi JFP we are rebuilding our 1958 plus 4 had to fit handbrake cable yesterday found soldering handbrake cable nipple didnt hold so tapped the nipple and clamped the cable with a bolt ...much better
I now have issues such as the timing to consider as the new accuspark dizzy cant be timed statically ie set at tdc then advance vac advance knob half turn which is 4 degrees
so i guess i'll have to use the strobe and a running engine but set to how many degrees cause the dizzy weights will add some degrees
im guessing i need about 10 - 14 degrees advance?
Rob
Morgans 1934 MX, 1947 Series 1, 1956 +4 TR4, 2000 +4 T16
Triumph Herald 1969 13/60
Morris 1970
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Joined: May 2014
Posts: 2,774
Talk Morgan Expert
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Talk Morgan Expert
Joined: May 2014
Posts: 2,774 |
hi JFP we are rebuilding our 1958 plus 4 had to fit handbrake cable yesterday found soldering handbrake cable nipple didnt hold so tapped the nipple and clamped the cable with a bolt ...much better
I now have issues such as the timing to consider as the new accuspark dizzy cant be timed statically ie set at tdc then advance vac advance knob half turn which is 4 degrees
so i guess i'll have to use the strobe and a running engine but set to how many degrees cause the dizzy weights will add some degrees
im guessing i need about 10 - 14 degrees advance?
Rob Won't an engine at a low idle be the same as static as the weights won't have kicked in any advance ?
Steve
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Joined: Jul 2007
Posts: 26,763 Likes: 425
Member of the Inner Circle
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Member of the Inner Circle
Joined: Jul 2007
Posts: 26,763 Likes: 425 |
Steve, that is how I remember it.
JohnV6
2022 CX Plus Four
2025 MG ZS EV aka Trigger
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