Engine Ground Strap


I installed a braided ground strap between the back of the engine and the firewall ground block.This is the heavy-duty conductor that carries the hundreds of amps of starting current back to the negative terminal of the battery.It is fastened at both ends by clamps,so there is no strain on the actual terminal ends.


Closeup of the attachment to the engine…It is secured to one of the auxiliary alternator mounting studs with a nut and lock washer,and is clamped to a neighboring stud.  


Then, because I have equal love for both belt and suspenders,I installed a second one.If the first one were to somehow come off,the full current of the starter would flow back to the negative battery terminal through all the various sensor wires,control cables etc.Quickly turning them into smoke.Thus,a backup ground strap.This one goes between a sump bolt on the left side of the engine,over to a nut plate on the lower firewall.I could not find a way to provide strain relief for the ends,but it is only a backup.


There is so much stuff back there that it is hard to get a good picture,but you can sort of see where I put some heatshrink tubing over the second strap.There is no danger of a ground wire shorting to ground,obviously,but I want to guard against it accidentally rubbing against the engine mount.It does not touch it currently,but it is possible that it might flop around and tear up the powder coat.  


Yueqing Koko Electrical Equipment CO.,LTD.
Contact Person: George Zheng
Tel: 0086-577-62755026 Fax: 0086-577-61755029
Add: No.5 Lane 71,Fenghu Road,Liushi Town,Yueqing City,Zhejiang Province,China 325604
Business E-mail:george@kokoproducts.cn