Michael Mckiernan Posted February 13, 2020 Report Share Posted February 13, 2020 Morning all , i know this has probably been asked and answered before ( and i have looked ) but is the MU Timing for a CR engine wrong in the brown bible. The reason for asking is i have just recieved my overhauled MU from Neil Ferguson and as i was there thought i would just check the timing. It appears to be 180 out if the manual is right . Car seemed to run ok before if a bit rich. Any help would be great. Thanks Mick Quote Link to post Share on other sites
ntc Posted February 13, 2020 Report Share Posted February 13, 2020 Mick The brown book is correct it will run 180 out but not as good. Quote Link to post Share on other sites
BlueTR3A-5EKT Posted February 13, 2020 Report Share Posted February 13, 2020 (edited) deleted for being misleading Edited February 14, 2020 by BlueTR3A-5EKT Quote Link to post Share on other sites
John L Posted February 13, 2020 Report Share Posted February 13, 2020 The CR timing is only 20 - 45 degrees ATDC compared to the CP which is at TDC firing using #6 outlet on the MU, not sure where you get the 180 degrees different? John Quote Link to post Share on other sites
Michael Mckiernan Posted February 13, 2020 Author Report Share Posted February 13, 2020 Cheers for the clarification on the Brown book. Have got it to 69mm ( book specs 67 mm Max ) but the next tooth back moves it to the other end of the scale. Should be close enough or is it ? Probably did'nt explain what i meant John , when i removed the MU i had number 6 valves rocking as per book after fitting the recon MU had a look in no 6 outlet and the rotor hole was not visable, turned crank slowly in the direction of rotation and the hole appeared at "roughly" 180 degrees . Removed pedestal, turned gear until i got it as close as 69 mm . Does that make any sense Thanks again for the insight Mick. Quote Link to post Share on other sites
John L Posted February 13, 2020 Report Share Posted February 13, 2020 I would have thought that the closer to 20 degrees the better, are you moving the pedestal or the MU drive gear shaft? would have a smaller variation on the MU shaft as the gear teeth are smaller. John Quote Link to post Share on other sites
ntc Posted February 13, 2020 Report Share Posted February 13, 2020 Mick Are you sure you have a standard cam fitted? if in doubt time as per CP ie no1 on fire pully TDC then make sure the drive ie red coupling is as per brown book. Quote Link to post Share on other sites
Michael Mckiernan Posted February 13, 2020 Author Report Share Posted February 13, 2020 Hi John, moving the MU drive , cant seem to get closer than about 50 degrees. All up and running , slightly lumpy but i did not check the injectors for air, will do that tomorrow. Might have another go at getting the timing closer , might be i kept missing a gog. NCT should be a standard CR cam , only done 76,000 and the last 2 owners never touched the engine but you never know. i will check when i have more time. If i cant get it closer i will have a try at timing it as a CP as you advise . easy enough to do. Thanks again Mick. Quote Link to post Share on other sites
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