What cambelt change intervals do you use?

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alviseven
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What cambelt change intervals do you use?

#1 Post by alviseven » Tue Jan 15, 2019 8:44 pm

I know the standard book value for cambelts - or can look it up but never trust it after had a astra belt go at 31K wrecking the engine (think it was a 50+K change regime!) - cannot afford this on the D16 216 engines I now run. So have always tried to changed them about every 20K or two years. However bought a car with a belt in it and good history but no evidence of a belt change for nearly 16 years or about 80K - needless to say it was treated to a change immediately and has been fine since. However what intervals do you folks change your honda 1.6 cambelts? Be curious to see comments as one of mine is due - have extended this to three years but it is still well within even my 20K mileage allowance. I am not that fussy about what make of belt I use either. Have used gates and others alike.
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1234dist
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Re: What cambelt change intervals do you use?

#2 Post by 1234dist » Tue Jan 15, 2019 9:33 pm

If you think it needs doing, do it. Better than the consiquences.
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Re: What cambelt change intervals do you use?

#3 Post by Mr Teddy Bear » Wed Jan 16, 2019 5:00 pm

I too have experienced a belt that expired at 38000 miles on a Ford Escort, never on a R8.

The OEM belts were [in my experience] good for the mileage stated at least, that's 60,000 miles or every 5 years. I have documentary evidence within my fleet of them covering 70+ k miles before being changed. Obviously it isn't a good idea to leave them on forever, however your regime seems a little excessive [imo].

I've never seen a thread here discussing a snapped cam belt.
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Johnny 216GSi
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Re: What cambelt change intervals do you use?

#4 Post by Johnny 216GSi » Wed Jan 16, 2019 6:40 pm

If you look at some of the cars sold at inflated prices (including those re-advertised at several thousand pounds :sad ) you tend to see little or no service history and the car running on its original cam belt - 20+ years after fitting. And the people doing the "flipping" of these cars are quite happy to drive them the length and breadth of the country to get them away from the seller. I had to do that once but I only ever intended keeping the car - I was sweating it stuck in rush hour traffic with over 100 miles to do and knowing the engine was on its original belt. Got it home and had the belt changed immediately.

A belt change is pretty invasive and it's a lot of work. For me, the 5 year / 60K recommended interval is fine. I never do even half that mileage anyway.

It's down to what you feel happy with. You know your cars anyway, and you know how the engine sounds. You can probably detect over-tension as a whine that you never had before. Just set the tension correctly, be satisfied it's completely in specification, and then forget about it. I know you want to get your two to 250K and if you've had a bad experience before that'll probably shape your thinking. Having never had a failure, I just trust the service intervals and stick to them regardless of mileage. 2-3 years still seems a bit excessive to me, but I don't want to be blamed for you resolving to leave it 4 or 5 and then you suffering a belt failure. For what it's worth, the stories I have heard of D series engines with snapped belts are usually not catastrophic. I've heard of people just putting a new belt on and the car running fine, or there being some piston gouging and a bent valve or two and they just end up replacing the valves and the car seems to run fine afterwards. Someone even claimed the D series wasn't an interference engine but I'm pretty sure it is!
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alviseven
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Re: What cambelt change intervals do you use?

#5 Post by alviseven » Wed Jan 16, 2019 7:17 pm

Astra belt broke on me and smashed 6 out of 8 valves but had new head swapped to run again to 285K but that and a poor chain on a old Alfa Sud makes me sweat whenever the cambelts are in the mix. I do not worry about changing them and getting that deep into the engine at all but I still do not like doing them as I dread getting them wrong.
I started my interest in R8 with a friend who had a G plate registration SHA - must have been quite a rough one as it was late 90's and needed a patch on the rear wing. However that car went to the grave with a snapped cambelt but then do not know when it was last changed and it may have been just one of those things. However I can report a R8 breakage!
My low mileage car came to me with cambelt like the car you drove home. Bought in 2012 and could not find evidence that it had a cambelt change since 1996 and about 120K miles! It was promptly changed too but I rarely let the cambelt changes go over 30K at my end. BTW the other car is already at 252000 miles and going strong even if the wife is now bemoaning the external state of the car. Looks like I can stretch the change for another year and compromise on 4 years and perhaps get towards 35K mileage! Do not get sounds or other issues they are always lovely running and no problem just hate changing and dealing with them - paranoia I think.
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Johnny 216GSi
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Re: What cambelt change intervals do you use?

#6 Post by Johnny 216GSi » Wed Jan 16, 2019 8:58 pm

alviseven wrote:
Wed Jan 16, 2019 7:17 pm
BTW the other car is already at 252000 miles and going strong even if the wife is now bemoaning the external state of the car.

... - paranoia I think.
No, not paranoid. Your aim is to keep the cars on the road for as long as possible with normal use & functional maintenance. Quite a noble goal I'd say.

If the other car is shabby, time to find a temporary replacement and practise your car bodywork and respraying skills. Since Haynes always points the car owner to simple paint touch-up maintenance if necessary, how about a full or partial respray using just Halfords rattle cans! I've heard of people doing this with the likes of the original mini and others. Wonder how good you could get it looking. I had minor success with a rust spot on the apron under the rear bumper. Managed to get an excellent paint blend even though I do say so myself. Never achieved this before, so my confidence doing spot repairs has grown...
Rover 216GSi K reg. Flame Red over Tempest Grey

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