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Post by Simon1275mpi on Sept 30, 2005 18:12:23 GMT
Josie's 998, leaded with 84 thou on the clock,
shes a bit@# to start, but idles and cruises okay, but when under load of acceleration it misfires or hesitates, like when pulling out of a junction. I think it's only on one cylinder as it still accelerates through it.
Cap, points replaced in April, vacuum advance seem all okay, plugs all the grey/brown okay colour. Tappets rattle a lot when cold.. the leads I'll replace on the weekend.
Thinking the lack of lead might of started the valve seat wear.
Any suggestions?
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Post by Miniböttcher on Sept 30, 2005 18:58:01 GMT
it sound to me its time for a rebuild the carb is proberly due one to, that will not help if its worn.
or just get hold of a second hand engine in good nick , low milage. if you can hear and see it runing it would be good
dean
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Post by MiniGT5 on Oct 1, 2005 10:17:07 GMT
Si, I dont think that it will be a lack of lead yet, I managed to get my leadded 998 from 25K to 56K on UL petrol. when I took the head off at 56K there was no wear showing at all. why dont you get that stage 1 kit fitted and then they will fix it for you on the rolling road. you could always get a stage III & roller rockers fitted at the same time to eliminate the valve ware problem too N  |
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Post by Simon1275mpi on Oct 2, 2005 10:47:00 GMT
Josie wants to wait till she had it resprayed before the stage one and the artilcle..
Changed the leads and cap and its made a big difference, but the underlying fault is still there. I've another leaded head which has been ported i'll drop in there. Will that make much differance to its carb tuning?
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Post by Stephen on Oct 2, 2005 22:27:34 GMT
u'd probably have to get it set up again watever, whether thats an expensive trip to the rollers or using the mini stalker's ears and knowledge
Stephen
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Post by MiniGT5 on Oct 3, 2005 17:53:36 GMT
Ah yes but your forgetting Si has bought a rather expensive stage one kit from MiniSpeed that includes a magazine feature, fitting and a rolling road tune up. But it was all spent in aid of charity really  At one point he was bidding against me  N |
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Post by Stephen on Oct 3, 2005 22:08:00 GMT
Never heard bout that....sounds good
Stephen
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Post by MiniGT5 on Oct 4, 2005 17:52:26 GMT
Yes he was like a man on a mission... You couldent stop him bidding, I thought he would have stoped but he just kept on putting his had up with me looking on in amazement N  |
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Post by monkeyjim on Oct 13, 2005 19:57:07 GMT
Check the basics again first Si, April was a while ago, the points gap might be slightly out.
Dave
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Post by annon on Oct 16, 2005 18:10:32 GMT
try setting the dwell angle and reset timing you can't fit points without re-dwell
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Post by Simon1275mpi on Oct 16, 2005 18:40:48 GMT
All is well with the little motor - ish.. I replaced the leads, cap and rotor arm. I did the dwell and points in April. Starts first time and goes well!! ;D So fresh plugs soon followed!  The olds were a way to long!! Must of been for the wrong car.  But the engine cuts out when pulling up. Vacuum not doing its job?? |
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Post by annon on Oct 17, 2005 7:21:23 GMT
monkeyjim got it right, allways go back to basics, do rough points gap then do it all from dwell
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