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Post by greg webb on Aug 8, 2005 13:17:42 GMT
I am having trouble with the bonnet on my p5b. When the bonnet is shut it sits up at the windscreen end. If I remove the bonnet springs it sits in the correct position.
Has anyone had this problem and what do I need to do to rectify it?
Many Thanks Greg. Webb
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Post by Phil Nottingham on Aug 8, 2005 15:54:33 GMT
Have you removed it recently?
If not its essential tpo grease/oil the hinges as they can seize and it results in a permanently kinked bonnett. Look to how many P5's you see with a poor gap to the wing on one or both sides.
They can be adjusted its best to try the hinge to bonnett ones first by slakening them off and raising to top position and then tighten just tight enough to grip so that by pressing down on the rear edge of the bonnett when its fully closed again (springs connected) it moves into line. If the adjustment is well outpfline its best to protect the scuttle edge and remove the grill to allow access to the catch if it jams
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Post by greg webb on Aug 9, 2005 6:03:10 GMT
Phil I am in the process of rebuilding my p5b. I have tried adjusting the bonnet as you have suggest previously but didn't fix anything. The bonnet isn't original and I think it is flexing in the section of the bonnet where the hinges bolt on. Is there a fix for this? Do I need to get another bonnet? Greg
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Post by Phil Nottingham on Aug 9, 2005 16:34:37 GMT
They can be really difficult to straighten so it will be well to try another - as I said badly fitted/fitting bonnets rae quite common and let the whole car down
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Post by Smallfry on Aug 9, 2005 22:54:15 GMT
Greg Have a look under the bonnet and look at the panel that the hinges bolt to...........
See if its still attached to the bonnet at the outer edges, it might need re welding, or maybe rusted through. You might not be able to see but when the bonnet springs are stretched when its closed can push the rear edge up.
This has happened to both the cars I have had !
If this is the case and it only need a bit of welding its fine, but if its caused by rust then I would recommend getting a replacement bonnet. Make sure the hinges are kept lubricated at all times.
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Post by Greg Webb on Aug 10, 2005 13:08:31 GMT
The bonnet isn't rusted and I will explore the suggestions offered. Many thanks Greg Webb.
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Post by Niek on Sept 1, 2005 9:25:12 GMT
Just read through this string of communication and want to add my experience. Since a month I have a Rover P5B Saloon (1970) and on the right hand side (windscreen area) the bonnet did not close properly. I tried other hinges I tried adjusting the bolts etc, but the bonnet still did not fit properly in the mentioned area. Finally (yesterday) I discovered the "problem": the air cleaner house touched the bonnet at the top and couldn't moved down because at the bottom the air cleaner housing touched the rocker cover. I'm not sure why this is but have to admit that the engine in my P5B is the later SD1 engine... By fixing this, the problem was almost solved. We also discovered that the plastic tubing for the screen washer was not properly fixed. By closing the bonnet it was "locked" in between the bonnet and the top of the heater(cover) pushing the bonnet up wards.
So my tip is also to check if you see some marks (scratches, dents etc.) under the bonnet of parts that touch the bonnet.
Good luck!
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Post by Deleted on Sept 1, 2005 18:09:26 GMT
I also had the same problem - the felt lagging on top of the heater box had ruckled but this actually caused the bonnet to kink permanently and it had to be replaced
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Post by Gianni on Jul 24, 2006 11:30:33 GMT
I am having the same problem in my coupe, but to me it seems that the hinges themselves are worn, both in the interlocking teeth and at several of the pivot points. Having said that I don't quite understand why it should stick up at the back as it does. I will check closely to see if there is something pushing it up as suggested. I tried another set of hinges which looked a lot better but had the same problem.
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Post by Phil Nottingham on Jul 24, 2006 13:58:40 GMT
I have never heard of them wearing - it sounds like simple adjustment to me
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Post by Gianni on Jul 25, 2006 8:49:12 GMT
question then becomes... adjusting what?
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Post by Phil Nottingham on Jul 25, 2006 16:29:44 GMT
???See first post. Note sometimes the insulation on top of heater box prevents the bonnet seating if the bonnet has been damaged
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Post by Smallfry on Jul 25, 2006 21:58:46 GMT
Try pushing the bonnet hinges down without the bonnet fitted. Then you will find out why it lifts up ! You have to lower the rear end of the bonnet in relation to the hinges
Also, while the bonnet is off........ remove the springs and see if the hinges rise and fall easily. If they are stiff, sort it out, or your bonnet will soon be kinked !!
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Post by Gianni on Jul 27, 2006 4:47:38 GMT
without the springs my bonnet closes perfectly put the springs back in and it sits up at the back edge by about one inch on drviers side and about two inches on passenger side. I bought the coupe partially restored after the restorer's death. The springs were not fitted and different springs give the same result.
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Post by Phil Nottingham on Jul 27, 2006 15:58:17 GMT
I would change the hinges - they may been tampered with
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Post by Smallfry on Jul 27, 2006 23:36:44 GMT
Is the back section of the bonnet fixed properly ? maybe broken ?
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Post by johnwp5bcoupe on Jul 28, 2006 7:12:46 GMT
I had a similar problem on mine after removing it for for respray, it was a case of slowly adjusting a little goes a long way! check to see if both sides are similar on the hinge as a start as smallfry said they don't fit parallel to the bonnet, mine are lower at the rear!
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Post by Gianni on Jul 30, 2006 5:01:53 GMT
the back of the bonnet seems ok and looks in good alignment until you add the springs. the steel 'framing' of the bonnet is not hard up against the bonnet itself but the gap is at most 1/8 of an inch not the inch or two the bonnet sits up. the hinges looks straight and are a lot better than the originals which hard worn teeth and wobbly pivots. I did hear a story las night at a Rover Club dinner of a similar problem being fixed after the bonnet flew open as the car was coming to a stop. it didn't hit the scereen, bend or do any damage but fitted perfectly after that!!!
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Post by Gianni on Jul 30, 2006 5:02:56 GMT
forgto to mentionthat even withthe hinges on the bonnet can be pushed into place, though I have only tried one side at a time as I was on my own.
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