- Joined
- Oct 13, 2010
- Messages
- 6,058
- Country Flag
i had some spare time today so decided to sort the exhaust out on my LJ70.
i needed to change the down pipe, which bolts onto the manifold. so i removed the old one which was a bit tricky and involved flexible head ratchet spanners and a lot of patience.
once id removed it i compared it to the new one which i bought about 6 months ago. i then realised that they wernt the same.
so i cut the flange off the manifold end of the new exhaust section, then pushed a piece of tube 105mm long into the new exhaust section, followed by the flange from the old exhaust. all pushed together nicely and were a tight fit.
i also made up a bracket out of 3mm steel that i bent and drilled.
i then bolted everything in place and when i was happy with it, i tack welded it. i then removed the complete section and fully welded it all together.
i then gave my welds a quick coat of high heat paint.
once the new section was bolted in place, i turned my attention to the rest of the system. so firstly i removed it all.
looking through my pile of metal i found a piece of scaffold tube that i originally bent up for the tube work on my ARB style bumper, but i never used it as it had a few kinks in it.
it looked the perfect size, so i welded a flange onto it, and bolted it on.
i thought i may need to fit a silencer, but ive just taken it for a 10mile test drive and it sounds beautiful and isnt too loud.
when backing off the throttle to change gear theres a lovely induction woosh.
there is also a noticeable improvement in power.
next i want to blank off the EGR valve and then get the fuel pressure and boost tweaked.
ive already got my snorkel with the ram air top, induction kit, intercooler, and now the straight through exhaust.
i needed to change the down pipe, which bolts onto the manifold. so i removed the old one which was a bit tricky and involved flexible head ratchet spanners and a lot of patience.
once id removed it i compared it to the new one which i bought about 6 months ago. i then realised that they wernt the same.
so i cut the flange off the manifold end of the new exhaust section, then pushed a piece of tube 105mm long into the new exhaust section, followed by the flange from the old exhaust. all pushed together nicely and were a tight fit.
i also made up a bracket out of 3mm steel that i bent and drilled.
i then bolted everything in place and when i was happy with it, i tack welded it. i then removed the complete section and fully welded it all together.
i then gave my welds a quick coat of high heat paint.
once the new section was bolted in place, i turned my attention to the rest of the system. so firstly i removed it all.
looking through my pile of metal i found a piece of scaffold tube that i originally bent up for the tube work on my ARB style bumper, but i never used it as it had a few kinks in it.
it looked the perfect size, so i welded a flange onto it, and bolted it on.
i thought i may need to fit a silencer, but ive just taken it for a 10mile test drive and it sounds beautiful and isnt too loud.
when backing off the throttle to change gear theres a lovely induction woosh.
there is also a noticeable improvement in power.
next i want to blank off the EGR valve and then get the fuel pressure and boost tweaked.
ive already got my snorkel with the ram air top, induction kit, intercooler, and now the straight through exhaust.
Your trucks looking pretty darn tough now; you ought get on down to Lincomb for a play now ;-)
