cu top speed 35mph

[dubslug]

just got van back from garage. it went in to be set up.. any way he did timing but couldnt see mark on pulley for tdc, so took plug out and span engine to get tdc. im not sure whats happened but now it wont pull under any load. very sluggish and no hill speed, what shall i be looking at first??
thanks

[123-jn]

I'm assuming from what you say that it wasn't this bad before? Did he actually get top dead centre right? Number 1 is front right as you look into the engine bay. Sounds very much like the timing is off to me? Did he reconnect the distributor correctly? If yours has vacuum advance make sure he reconnected it at the dizzy and the carb. Take it back!!!!

[937carrera]

If it was running OK when it went in, and now it isn;t you should be taking it back and giving them a chance to fix it.

If they have only done the timing, then that must be whet they have done wrong. The timing mark is on the back of the fan, not the front, is not easy to find and isn't at 12 o' clock when number 1 is at TDC because the timing indicator scale is not set up to so that 12 o' clock = TDC.

Take a look at this thread https://club8090.co.uk/forum/viewtopic.p ... 8&start=30

When setting the timing you also have to loop the idle stable stabilisation unit together and time it to 5 degrees ATDC

Having just done this on my T25 I found it easier to remove the alternator duct and fan cover when setting the timing

Hope that helps

[dubslug]

Cheers for replies. I'm sure he said he timed it 5 dbtdc. It went in having stalling issues which hexsaid wascdown to pipes connecting carbs were split. He then reset timing as he could see no mark. When it went in it pulled really well. Now it revs okay but won't pull under load. I have to fix it on street as away tomorrow in it. Hopefully

[itchyfeet]

Have you got a timing gun?
will be in Basingstoke (well Chineham business park) from 8am to 2pm could take my timing gun if you need to borrow it?

[billy739]

take it to a mechanic who knows what he is doing!

[itchyfeet]

Easier said than done these days on a 30 year old Aircooled

[dubslug]

Thanks itchy but I am at work till about 330. Gutted could have used someone with a knowledge of these engines. But thanks for offer. No I don't have a timing gun trying to find somewhere with one in stock at moment

[itchyfeet]

Sorry don't know anything about Aircooled
have gun with me, where do you work?

[dubslug]

I'm in Andover till 330. Can't believe trying to find timing gun could be so hard. Gonna have a lesson on it later when I use one for first time. Never set timing before

[itchyfeet]

Ok so where do you live/ anybody home, maybe could drop it off/ leave with somebody
pm me maybe best

[dubslug]

Will pm now thank you

[dubslug]

Thanks to itchy I have now got timing somewhere near right. Issue now is on three quarters onwards revs I have popping and banging

[itchyfeet]

Have you checked vac hoses still sounds like incorrect timing
hopefully an Aircooled expert will be along to help soon

[dubslug]

They all look okay to me. I did renew them all. Think there in right places. It's the right hand side carb popping