Compression Readings

[gsb876]

Freddy,

was just saying you dont know if it would last 5k or 20k as even good compression readings aren\'t that accurate.

But for the fee of £9k or £10k a much better rx7 could be bought.

[Rich Cheung]

OK guys so if it was your money you\'d probably leave it and keep looking yes ?

[gsb876]

Rich, have a look at the following:

1995 Rx7 in Black with chrome 17" alloys with recent rebuild reading 50000 miles on clock, £9595 - 07814 019599

[gsb876]

Or

1995 RX7 in Red, rebuild 2k ago reading 45000 miles on clock £6995 - 07973 471637

[sadgoth]

there\'s a few of us in Reading and surrounding PM me and I\'ll see if I\'m around

[Rich Cheung]

Cheers Gurj.
I\'ll give the guys a bell and get some info.

Rich

[grinder]

if i had 6.8K i know what i would buy

there are 2 in the for sale section here - one is 6.5K and is a corking example ( i would love to buy it ) and one at 5K that needs about a grand spending on it - im sure thats had a rebuild aswell

happy hunting

Stu

( and for an FD engine - i would expect a rebuild at anything between 40K and 60K - anything above that is rare - but thats only my opinion )

[Freddy]

Sorry Gurj, think I put my msg the wrong way. What I was saying, is even it has 60k with good readings. Has anyone known a FD to last 80k miles without a rebuild. The most I have seen was 70k. I know a mate was selling his FD last year with compression test being great. Took someone for a test drive, came back, parked up, fire her up again - kaput engine.

The above give food for though however, if a RX had a rebuild at 50k and the other at 45k miles. Surely that gives a good indication of how long the engine lasts in relation to how well its been looked after.

Rgds

[gsb876]

I guess usually about 60k and the rebuild in just around the corner??? depends on how the engine has been looked after.

Cool freddy i know what you meant, gonna try and make the next northern meet if i can:)

[88GT-R]

Originally posted by Rich Cheung
John - I appreciate there are a lot of factors that contribute to how soon a rebuild may be needed.

Are there any procedures I can do to improve the longevity of the engine ?

Regular oil changes I guess with a good mineral oil
Spark plugs - any particular rating ?
What other practical things can you guys suggest ?

Cheers,
Rich

i know the other guys have pointed you in a couple of new directions with ref to other cars. I hope you find the one you are after. The white FD for sale on the forum looks like a good buy.

To anwer your question,
Spark plugs- go for 9`s all round, change every 3000miles
Oil change - i change mine monthly, but the limit is 2800-3000.

Practical stuff - Consider running premix with the oil injection. Mix ratio of 400:1 This will help with a cleaner burn and helps reduce carbon build up. As proof of this, when my engine was rebuilt at 130 000km, my builder reckoned it was the cleanest rotors and housings he had stripped.
Ensure you have stable boost control, and time is given for the oil to get up to operating temp.

I hope this helps,

John
88 GT-R

[bnaellis]

I know of quite a few that have done 70,000 + klm
and a few over 80,000 klm.
Apex seal wear is always looked at as the be all and end all of the rotary engine. Fact of the matter is the water seals go before the apex seals do alot of the time. From what I have seen from being involved in rx7s for about 8 years or so now is that alot of owners can\'t really afford their car so the maintenance is poor because funds are short or their car has a problem but rather than take it to a garage they continue to drive it and ignore the fault until the minor fault now becomes a £2,500 bill.
A customer left my workshop recently the engine was literally bone cold, he leaves wheels spinning up the road thrashing it.
I tell him that he should let the car warm up properly first before he thrashes it otherwise he\'s only reducing the life of his engine. He says oh I didn\'t know that. These are the kind of cowboys i\'m offering warranties to that don\'t care for their car I must be some kind of fruit cake.

[88GT-R]

Of course you are a fruitcake... will you be needing a hand to fix them diffs again at RS??  :p

John
88 GT-R

[Martiny]

Originally posted by BNA_ELLIS
I know of quite a few that have done 70,000 + klm
and a few over 80,000 klm.
Apex seal wear is always looked at as the be all and end all of the rotary engine. Fact of the matter is the water seals go before the apex seals do alot of the time. From what I have seen from being involved in rx7s for about 8 years or so now is that alot of owners can\'t really afford their car so the maintenance is poor because funds are short or their car has a problem but rather than take it to a garage they continue to drive it and ignore the fault until the minor fault now becomes a £2,500 bill.
A customer left my workshop recently the engine was literally bone cold, he leaves wheels spinning up the road thrashing it.
I tell him that he should let the car warm up properly first before he thrashes it otherwise he\'s only reducing the life of his engine. He says oh I didn\'t know that. These are the kind of cowboys i\'m offering warranties to that don\'t care for their car I must be some kind of fruit cake.

Geez, at last, someone on my side!!! I keep saying with proper maintenance and driven properly, the engine should go well beyond 60k.  Thanks Brian!!!!

[bnaellis]

Originally posted by 88GT-R
Of course you are a fruitcake... will you be needing a hand to fix them diffs again at RS??  :p

John
88 GT-R

No chance I think i\'d rather use the car to start a bonfire rather than going through that again.

[grinder]

Originally posted by Martiny
Geez, at last, someone on my side!!! I keep saying with proper maintenance and driven properly, the engine should go well beyond 60k.  Thanks Brian!!!!

i agree with the statement - but you would need to have the car from brand new - and make sure that it is servcied and treat nicely throughout its life

so if someone would like to buy me a brand new 8 - im happy to test this theory

so what are these like for figures then from an 52k engine :

Rear
6.95
7.05
6.90
@448rpm
Front
7.50
7.25
7.55
@448rpm

to be honest the 6.xx figures worry me - and again - i reckon that this engine will be lucky to make 60K

what do you guys think ??

Stu