Hello Simon.
I'm gonna just put it all back together with new pushrods, gaskets, heater
hoses
and trade it in. I'm considering a 1992 or later Rangie, a late model
series 1 Disco or a 4.5 litre 80 Series Land Cruiser. I want ABS, airbags
and dual fuel (LPG/petrol). Unless I was doing a long trip or a lot of sand
work, diesel doesn't offer any advantage over petrol. The fuel is dearer
than petrol - and more than twice the price of LPG. And the maintenance
costs of a diesel are higher than a petrol engine. The Land Rover Tdi
engines are just too prone breaking timing belts. We've had quite a few in
our club break belts at less than 60,000km. The repair costs for the damage
to the engine aren't cheap. I'll take the V8.
Ron
>Having just had an engine rebuilt I'd make the comment that you may as well
>replace the cam no matter what. Given it's relatively low cost it's be
>better to replace it now while the engine is apart. Otherwise you'll be
>faced with the inconvenience of tearing the engine down in another
>20-30ks.....
>
>-----Original Message-----
>From: The Becketts [mailto:hillman@bigpond.com]
>Sent: Monday, 29 May 2000 11:39
>To: Opstal, Lex van
>Cc: Buick-Rover-V8 Mail List; RRO List; AU LRO List
>Subject: Re: V8 Cam lift
>
>
>Lex van Opstal wrote:
>
>
>>Standard rocker ratio = 1.6. (22,5 : 36)
>
>I guess my approximate measurements were too approx. I saw the 1.6 ratio
>later when I looked thru RPI's site.
>
>>Lift of the standard cam is 6.5 mm. (27.5 : 34)
>
>By thos figures, my cam doesn't seem too worn. I hope to be able to
>accurately measure it tomorrow. Have you ever tried to stick a magnetic
>base dial indicator thingie to a Rover engine 8-). What's odd is that the
>cam exhibits the same wear patterns as the worn cam on RPI's site.
>
>>Bent pushrods may be a result of not having the
>>preload set as it should be.
>
>As this engine was built by a Rover specialist (John Davis MotorWorks -
JDM)
>in
>about 1989-90 (but see below), I wonder if there could be another cause.
>
>From the worksheets I have for the car, on 10 Aug 95, "removed heavy Chev
>springs and replaced with standard. Supplied and fitted 1 H camshaft with
>new genuine lifters". I must admit that I had missed this when I mentioned
>the engine had done about 180,000. That means the cam and lifters have
done
>considerably less. Unfortunately, the printout from JDM only shows the
work
>done and the date - not the odometer reading. Curses!
>
>On 23 August, "Replaced valve springs" Odd that it was redone two weeks
>later.
>
>I thought about valve seat recession (as my engine was converted to runs on
>LPG in May 99) but all the Inlet valve stems appear about the same height
>(fractionally lower than the exhaust valves).
>
>>Preload is measured with heads and rockers installed.
>>The pushrodseat of the lifter should be 1 - 1,5 mm
>>beneath the spring of the lifter.
>
>
>I'll check these tomorrow. I bought new pushrods today.
>
>>When valveseats are recut the valves sit deaper in the
>>head and so stick out higher towards the rocker.
>
>One would have expected any pre-load to have been adjusted then.
>
>I'm just not sure what to do next. Do I do the minimum on the engine for
>the moment or do I rebuild or do I trade-in the Rangie.
>
>I'm considering a full rebuild of the engine. That would cost about
A$5,000
>(US$2850) drive in - drive out.
>
>Thanks for the very useful information. Lex. It's much appreciated.
>
>Best regards,
>
>Ron
>
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