something does not seem right.

[suprasport]

sorry this is lengthy

supe was overheating due to air lock, overheated about three times, sorted the airlock out and ran really well then noticed it started missing (very lumpy) getting worse. plugs were fine, but unsure wether oil smelt of petrol or exhaust fumes and did look a bit white, but again not sure if that was due to engine being cleaned a few weeks ago or just some crap got in whilst i had been working on it. cleaned cap and it stayed clean

today i have done a compression test: -

crancked 5 times

1) 200

2) 195

3) 200

4) 198

5) 191

6) 197 they all rose roughly the same 150, 175, 190, 195

fuel was disconnected, fitted new plugs, reset ecu, still lumpy, so used 10k boost (decoke sprayed directly into intake) cleared it up lovely then it came back, so took it for a thrash, plenty of white smoke/stroke steam, lumpy/misfire has gone. for good i hope

but there is a knock/tapping from around pulleys at 1100 rpm

revs only drop to a minimum of 1000 at idle.

Question (at last)

have i got anything to worry about

[penguin]

hmm... could be your coil packs....

[suprasport]

n/a matey, no coil packs for me

[Whitesupraboy2]

Have you changed the HT leads to the Plugs? you could have one breaking down. Also the one from the Coil to distirbuter pack could be breaking down.

 

All 5 should come in a HT lead pack. Also have you actually replaced the rotor arm in the distibutor cap. The ticking does it speed up if you rev it. You may need to get someone to rev it whilst you stand next to it as the engine will drown out the sound.

 

hope this helps a bit

[suprasport]

Have you changed the HT leads to the Plugs? you could have one breaking down. Also the one from the Coil to distirbuter pack could be breaking down.

 

All 5 should come in a HT lead pack. Also have you actually replaced the rotor arm in the distibutor cap. The ticking does it speed up if you rev it. You may need to get someone to rev it whilst you stand next to it as the engine will drown out the sound.

 

hope this helps a bit

 

brand new plugs, leads, dis cap, rotor arm, timing belt,

ticking stops as soon as i go above or below 1100 rpm. its prob all in my head and worrying about nothing, but was scared of bhg last night, and that engine had overheated etc. but compression is ok, plugs are clean, didn't really expect decoke to work as plugs were very good, but it did.