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Jun 14th, 2026
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Joined: Aug 2013
Posts: 262
Learner Plates Off!
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OP
Learner Plates Off!
Joined: Aug 2013
Posts: 262 |
Can anyone tell me whether the 4.8-litre engine on the Aeromax has belt-driven or chain-driven cams, please? The car is booked in next week for its 5-year major service; and if it is a [cam] belt, that would definitely need changing... BTW, the online parts book does not give me any engine info  !
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Joined: Aug 2013
Posts: 3,383 Likes: 14
Talk Morgan Addict
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Talk Morgan Addict
Joined: Aug 2013
Posts: 3,383 Likes: 14 |
Just looked at a picture of the 4.6 engine on Google (BMW 4.6 V8) and it certainly looks chain driven, the ally castings at the front would all have to be striped off if it were belt. Belts tend to be behind plastic covers and chains behind or rather inside ally castings. You can't rely on that to be universally correct but it's true in 99% of the cases, best to check, any BMW dealer would tell you if their 4.6 V8 requires a belt change, to be totally sure.
BR Colin
Who used to be a Spanner Juggler
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Joined: Jul 2007
Posts: 28,891 Likes: 350
Salty Sea Dog Member of the Inner Circle
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Salty Sea Dog Member of the Inner Circle
Joined: Jul 2007
Posts: 28,891 Likes: 350 |
Colin beat me to it. BMW went away from belts more than 20 years ago... One good thing about them...
Graham (G4FUJ)
Sold L44FOR 4/4 Giallo Fly
'11 MINI Countryman Cooper D All4
'90 LR 90 SW
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Joined: Jul 2007
Posts: 27,804 Likes: 749
Member of the Inner Circle
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Member of the Inner Circle
Joined: Jul 2007
Posts: 27,804 Likes: 749 |
+1. I know several cars where cam belts failed despite regular changes. Chains or gears are better & the difference in cost is small.
JohnV6
2022 CX Plus Four
2025 Renault Scenic Alpine etech "Yvette"
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Joined: Jul 2007
Posts: 28,891 Likes: 350
Salty Sea Dog Member of the Inner Circle
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Salty Sea Dog Member of the Inner Circle
Joined: Jul 2007
Posts: 28,891 Likes: 350 |
Though chains do, very occasionally, fail... And BMW MINI early 1.6 diesel suffered all sorts of problems with slipper tensioners... Another reason I sold mine as it was just beginning the telltale noises... 
Graham (G4FUJ)
Sold L44FOR 4/4 Giallo Fly
'11 MINI Countryman Cooper D All4
'90 LR 90 SW
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Joined: Apr 2012
Posts: 5,013 Likes: 32
Charter Member
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Charter Member
Joined: Apr 2012
Posts: 5,013 Likes: 32 |
The Ferrari belt change used to be a major shock to owners.... The 4.8 is chains that should last a very long while.
+8 4.8
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Joined: Jan 2012
Posts: 14,976 Likes: 2
Member of the Inner Circle
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Member of the Inner Circle
Joined: Jan 2012
Posts: 14,976 Likes: 2 |
You must have one of the highest mileage Max's out there....
Richard
1976 4/4 4 Seater
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Joined: Jul 2007
Posts: 27,804 Likes: 749
Member of the Inner Circle
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Member of the Inner Circle
Joined: Jul 2007
Posts: 27,804 Likes: 749 |
Though chains do, very occasionally, fail... And BMW MINI early 1.6 diesel suffered all sorts of problems with slipper tensioners... Another reason I sold mine as it was just beginning the telltale noises... True I had a Honda 360 that broke the tensioner. Honda rebuilt it under warranty
JohnV6
2022 CX Plus Four
2025 Renault Scenic Alpine etech "Yvette"
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Joined: Aug 2013
Posts: 262
Learner Plates Off!
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OP
Learner Plates Off!
Joined: Aug 2013
Posts: 262 |
Thanks guys! You've all been a great help and that [chain-driven cams] fitted to the BMW V8's is useful to know! Touch wood, my Max has been very good to me (despite a few niggles since I took delivery of it) and I really look forward to many more miles of happy ( read: wearing a big grin) motoring!  Happy Easter! 
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