Compression test results

[Matt_Seicentos]

Hi, just had a compression test done,7 months ago I had 155 on all 4 cylinders, this time I had:-

1:- 125
2:- 105
3:- 125
4:- 125

any opinions on what might be wrong with it? also would a manifold gasket being buggered account for the loss of compression?

 

[TurboDave]

How many pumps did you turn the engine over?

 

[Matt_Seicentos]

around 6? same amount as last time it was done

 

[sx_turbo]

cylinder 2 is very low something is wrong there, and all the other cylinders seem to be a bit on the low side.

what symptoms are you getting?

 

[Matt_Seicentos]

cylinder 2 is very low something is wrong there, and all the other cylinders seem to be a bit on the low side.

what symptoms are you getting?

well it doesn't sound too healthy, I can't run high boost as at 8-10psi it hesitates, misfires and hits fuel cut.. (no engine light comes on)

I've changed plugs and leads etc.. and this still happens.

 

[hardcoreep]

Dats one screwed engine.

 

[Matt_Seicentos]

Dats one screwed engine.

rebuild here we come

 

[sx_turbo]

you goin forgies?

or just standard rebuild?

when i rebuilt mine to standard it cost me £500, cos i done the work myself.

 

[gavcollier]

it still cost you 500 and you done it yourself..oooo shit

 

[Matt_Seicentos]

you goin forgies?

or just standard rebuild?

when i rebuilt mine to standard it cost me £500, cos i done the work myself.

forgies, been looking at the engine rebuilds toby does.

 

[sx_turbo]

it still cost you 500 and you done it yourself..oooo shit

yep i done

new pistons
new rings
new headgasket
all the gaskets and seals for the head
all new injector seals
headbolts
timing belt
thermostat
oil filter x 3
i would also recomend a new water pump (i overlooked this when i rebuilt mine)

i didnt machine the bores as mine didnt need doing, and i never replaced the big end bearings as i couldnt be 100% i could get the right ones.

£10 to fit the new pistons to the con-rods, as they are a press fit and need to be done professionally.

i've probably missed bits out, thats all i can remember off the top of my head.

 

[sx_turbo]

forgies, been looking at the engine services toby does.

if that service was available when my engine went bang i would have done that, as it is much better value for money than a standard rebuild.

 

[Matt_Seicentos]

if that service was available when my engine went bang i would have done that, as it is much better value for money than a standard rebuild.

I'd love to have a go at doing it myself, but I just don't have the time

 

[sx_turbo]

I'd love to have a go at doing it myself, but I just don't have the time

i got mine done in 3 weeks.

i didnt want to trust buying a second hand engine, so i had no choice.

toby or dave b engines are definately the best route in my opinion.

and you know its been done right.