Compression test!!

[ReX 813]

Guys what do you make of this....

results for comp test...

front chamber   5.4     5.3    5.2

Rear chamber  5.5   4.5   4.8

im told by the guy i bought the car from, the readings are due to it having
3mm tip seals, but im not so sure!
what do you think?

comments appreciated.

[rmagictastic]

That is complete and total F****n B******t matey!!!!!

and theyre not fantastic results to be honest either. (sorry)

Who said that??? name and shame bud.

Cheers

Rmaj

[rx7veilside]

with those readings i am surprised u can start the car when warm ans those figures are rebuild type compression

[Jit]

at what rpm were those readings? 3mm apex seals can give slightly lower static compression but not that low!

[ReX 813]

This is the situation im in, i paid top dollar for the car, under the impression it has been rebuilt and cared for by a certain specialist, i still have 6months
warrenty left on the car, ive told him of the comp test results and he has basically said its all fine!
which by reading your replies so far is a total blag. :mad:

[ReX 813]

at what rpm were those readings? 3mm apex seals can give slightly lower static compression but not that low!

250rpm mate

[Jit]

well then those readings are low! 4.5 bar is rebuild time! Like Paul, im surprised it starts when hot! Did the engine builder tell you that those readings were fine? I think its name and shame time as well!

[ReX 813]

yeah, the engine builder said they were fine,
dont wanna name and shame unless i really have to mate, could cause a stir
with the warranty side of things,
just want him to admit theres a fault with it, coz at the momment he doesnt want to know.

[arrouk]

id go see the builder, and im sure one of the members close to you or him would go too to discuss this with them. but i was told 8+ bar was excellent 7+ bar was good and 6 bar or less is just a matter of time.

mail me your no. if you want a quick chat.
arrouk@ntlworld.com

matt

[rx7veilside]

no way are those figures fine u must have trouble starting it when warm..if its under warranty then it needs sorting what does the guy u bought it from say was he a regular on here..which builder are u using as very surprised to hear those figures are fine they are way too low especially for a re built engine and i should know as mine is being put right at the moment as my rebuild was showing average comp for front but crap from the rear

[mikeyh]

they do seem low to me as well.
i got mine checked by pip and he said mine were 7.1 and 6.9 so i think someones telling u lies just trying to cover thier arse not wanting to do another build

[John Yorke]

1st question: is the car running OK?
2: Have you checked the power output [dyno\'ed it]?
3: What has your \'builder\' said to you?

Before you go off into one I would be looking at the above first.

[Carl]

1st question: is the car running OK?
2: Have you checked the power output [dyno\'ed it]?
3: What has your \'builder\' said to you?

Before you go off into one I would be looking at the above first.

I should have thought that it was obvious that something is wrong with this engine John.
Surely even you can see that.:rolleyes:
Regards
Carl

[rx7veilside]

1st question: is the car running OK?
2: Have you checked the power output [dyno\'ed it]?
3: What has your \'builder\' said to you?

1.it cant be running ok with that compression starting must be a nightmare when warm and hard when cold
2.no point having power if u cant start the car
3.the builder whoever it is has told him those figures are fine which as we all know they are terrible comp readings

[rmagictastic]

if i were you i would get another comp test done to double check...

theres a co. in gatwick called superseven who im sure have acomp tester.

rmaj