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        General >> Problems >> fast tickover
        
(Message started by: xr4s_r_ace on Jul 4^th, 2009, 8:55pm)

Title: fast tickover
Post by xr4s_r_ace on Jul 4^th, 2009, 8:55pm

hi guys, i,m running one of your fine 24v bob cossie motors in my xr4 and the tickover is running a bit fast. It drops occasionally but then increases. Any advice would be much appreciated....cheers pete.

Title: Re: fast tickover
Post by tonyboy on Jul 4^th, 2009, 11:20pm

You could try cleaning the MAF that might make a difference.................. ;)

Title: Re: fast tickover
Post by Jonnycab on Jul 5^th, 2009, 12:29am

Idle control valve in need of a de-coke ? :)

Title: Re: fast tickover
Post by big_timer on Jul 5^th, 2009, 7:23am

i cleaned mine with carb cleaner,then an application of light oil into and around the spring and plunger mechanisms inside. made all the difference.

check when you remove it if there is there a paper gasket fitted?

Title: Re: fast tickover
Post by Highlander on Jul 5^th, 2009, 1:29pm

Hi Pete,

Slight change of subject but is your Xr4 a 4x4?

Title: Re: fast tickover
Post by xr4s_r_ace on Jul 5^th, 2009, 7:51pm

on 07/05/09 at 13:29:27, Highlander wrote:

Hi Pete,

Slight change of subject but is your Xr4 a 4x4?

helloooo highlander, its 2 wheel drive. more power delivered through a less complicated drive train.

Title: Re: fast tickover
Post by xr4s_r_ace on Jul 5^th, 2009, 7:53pm

thanks for that guys, ive cleaned the maf with brake cleaner, but i,m intrigued about the idle control valve....were,s that then...lol

Title: Re: fast tickover
Post by xr4s_r_ace on Jul 5^th, 2009, 8:31pm

Tell you what though boys, i,m well impressed with this 24v cossie engine, i thought the 2.8 that was in the car was fast , but this is impressive. Its a standard engine on a 5 speed manual box, k+n filter and a powerflow exhaust without a cat. Its a bit...no a lot...thirsty, and it makes an orrible chain rattle noise when starting....is this terminal or "one of those things". but other than that..nice

Title: Re: fast tickover
Post by Scorpio_Mike on Jul 5^th, 2009, 8:42pm

XR4i's are indeed ace ;D

Title: Re: fast tickover
Post by Highlander on Jul 5^th, 2009, 9:43pm

ICV here

http://www.fordscorpio.co.uk/cgi-bin/yabb/YaBB.pl?board=Advice;action=display;num=1246310097

The chain rattle means the chain guides are probably broken (and possibly lying in the sump beside the oil pick up!) the tensioners may also be gunged up and not holding oil.

Yours is in an XR4 and i dont know what set up you have to run it, but with the Scorpio if it detects Wide Open Throttle (WOT) eg accelerator to the floor when starting then the engine should turn over and not fire letting the oil circulate, exciting if it fires up though :)

costs involved to repair it are similar to the costs involved if a chain jumps or actually breaks , although a second hand engine is the cheapest/easiest fix ;)

Title: Re: fast tickover
Post by xr4s_r_ace on Jul 6^th, 2009, 10:11pm

Thanks for the advice guys, i cleaned the control valve and it started with a lovely tickover, soon as i revved the engine it started racing again, although not as fast. I disconnected the plug and it runs perfect, revs up and drops to a nice tickover, dont know if its right but it sounds good....old fords eh.

Title: Re: fast tickover
Post by Highlander on Jul 6^th, 2009, 10:33pm

Pete it is on the right way??
its possible to fit them the wrong way round and it does exactly what you describe if its on back to front,

remember the pic in that link i posted is looking from behind the engine, gearbox end

Title: Re: fast tickover
Post by Highlander on Jul 6^th, 2009, 10:36pm

p.s. would you mind if i posted a couple of the pics you sent me? its a cracker, i'll blank off the reg no

Title: Re: fast tickover
Post by xr4s_r_ace on Jul 7^th, 2009, 6:02pm

on 07/06/09 at 22:33:43, Highlander wrote:

yeah its the same as in the photo, ive had a drive round and it seems to run the same.As you said its not in the same loom as a scorp, maybe its a subtle difference...lol.

regards the pics, thanks for that. dont have a problem with that at all. Have you got any of your fleet you could send me. cheers pete.