I have a 1990 RRC with Nissan Fd35 Diesiel engine.
The fault began on a day out a few months ago in the mountains, when starting off on a steep hill i noticed one load clunk. I changed many things & the fault has just got worse.
I am hearing & feeling through my feet a clunking noise when taking up drive, the more load the more times the clunk will happen. I can carefully take up drive & accelerate slowly & the clunk/fault will not be present. IF i drive along in 1st or 2nd gear 2-3000 revs & operate the brake while keeping the accelerator pedal constant i.e put more load on engine & gearbox the clunking noise appears. Release the accelerator/reduce the load the fault stops.
I got a helper & a large piece of wood, placed it on all parts while helper took up drive on incline to recreate fault. The loudest noise is heard (through wooden pole) while it is on the pinion/diff housing. Not from engine, not from radius arms or any of other suggested part. From inside the cab its sounds like the noise is in the centre tunnel area.
I took off the front prop shaft (eliminate front diff) & the clunk noise on drive uptake is still present inside the cab but not on the front diff.
If put it in 1st gear & hold the brake down while trying to put away i.e big load but with no movement in running gear the fault is not present, so i dont think its splines on input shaft slipping or cogs/pinions slip.
Things i have done - CV joints checked & regreased, antiroll bar ball joint front & rear changed (both knackered), wheel bearings checked & regreased all round, changed knacked UJ on front propshaft, both radius arm bushes changed, A frame bush checked, splines on half shaft, driveshaft & cv all good no sign of wear. I noticed when I had the front prop shaft off that there is a little play in the transfer box/propshaft coupling.
Note: Handbrake has been sticking on for a good while, now sorted & rear prop shaft sliding member had seized not causing the problem but could have helped created the problem?
I am hoping someone will recognize these symptoms & help me out with some pointers of where to look next. Then I can fix it & take the missus & little lad on holiday in it like I been promising for ages ..
Ta for any input.
The fault began on a day out a few months ago in the mountains, when starting off on a steep hill i noticed one load clunk. I changed many things & the fault has just got worse.
I am hearing & feeling through my feet a clunking noise when taking up drive, the more load the more times the clunk will happen. I can carefully take up drive & accelerate slowly & the clunk/fault will not be present. IF i drive along in 1st or 2nd gear 2-3000 revs & operate the brake while keeping the accelerator pedal constant i.e put more load on engine & gearbox the clunking noise appears. Release the accelerator/reduce the load the fault stops.
I got a helper & a large piece of wood, placed it on all parts while helper took up drive on incline to recreate fault. The loudest noise is heard (through wooden pole) while it is on the pinion/diff housing. Not from engine, not from radius arms or any of other suggested part. From inside the cab its sounds like the noise is in the centre tunnel area.
I took off the front prop shaft (eliminate front diff) & the clunk noise on drive uptake is still present inside the cab but not on the front diff.
If put it in 1st gear & hold the brake down while trying to put away i.e big load but with no movement in running gear the fault is not present, so i dont think its splines on input shaft slipping or cogs/pinions slip.
Things i have done - CV joints checked & regreased, antiroll bar ball joint front & rear changed (both knackered), wheel bearings checked & regreased all round, changed knacked UJ on front propshaft, both radius arm bushes changed, A frame bush checked, splines on half shaft, driveshaft & cv all good no sign of wear. I noticed when I had the front prop shaft off that there is a little play in the transfer box/propshaft coupling.
Note: Handbrake has been sticking on for a good while, now sorted & rear prop shaft sliding member had seized not causing the problem but could have helped created the problem?
I am hoping someone will recognize these symptoms & help me out with some pointers of where to look next. Then I can fix it & take the missus & little lad on holiday in it like I been promising for ages ..
Ta for any input.
