Flexing cat

[sam55]

I'm not sure if this is just normal, but wanted to check. Since my exhaust is going to be replaced soon due to falling to bits and blowing in numerous places, I looked under the car to see how far gone it was and noticed the cat moves quite a lot when revving, not necessarily high revs either, up to 3k. The engine mounts feel relatively solid if I try to rock the engine, but tbh I don't have a clue how they should feel!

Just wondered is this a sign of engine mounts going? I'm up at Uni but my dads a mechanic so wanted to know if I should order some parts for him to fit when I'm next home (I pay him with beer).

Cheers

 

[N1CKY]

amidoinitright?

 

[montana]

Our right something doesn't sound right, you shouldnt be getting massive amounts of movement from the exhuast when revving (obviously it moves a bit because the engine moves)

Have you rocked your engine from the bay the check your mounts ?

 

[sam55]

Yeah I've rocked it and it doesn't rock stupidly easily, but it will move with only a small amount of effort. What should it do? Should I be getting no movement at all if I try and rock it myself?

The cars done 79000 miles and I assume hasn't seen bushes and mounts changed for a while so might be worth investing in some news parts, just wondering which are the most appropriate for this?

 

[montana]

Yeah I've rocked it and it doesn't rock stupidly easily, but it will move with only a small amount of effort. What should it do? Should I be getting no movement at all if I try and rock it myself?

You should be getting some movement as they are designed to move, how much exactly i am not sure. When fitting my exhaust i had problems with fitment and thought a buggered engine mount was the cause of the problem as there was movement. The only way i ruled it out (un-scientifically) was to have a look at another members on here with the same exhaust and check the degree of movement in theirs.

Have a visual check of the upper engine mount (top left on engine) and the gearbox dog bone and one under the battery - hopefully it will be easy to see if they are badly perished.

The cars done 79000 miles and I assume hasn't seen bushes and mounts changed for a while so might be worth investing in some news parts, just wondering which are the most appropriate for this?

I would go for original items, some people complain of excessive vibration in the cabin from uprated dog bone mounts. Cant comment on the uprated upper mounts etc.

 

[sam55]

Thanks a lot for the help mate! I'll get looking at them and see what (if anything) needs replacing.