engine removal and rebuild
#1
engine removal and rebuild
Ok starting off from this thread
https://www.jaguarforums.com/forum/x...-190097/page2/
the reason im doing this is because cylinders 1 and 7 have low compression.
1 and 7 have around 30-40 psi. the rest are 115-135.
pulled it in my garage and begun the the removal. didn't get very far today got interrupted and had to stop. all i got off was the air intake and sprayed some penetrating fluid on the cat bolts to help with removal.
https://www.jaguarforums.com/forum/x...-190097/page2/
the reason im doing this is because cylinders 1 and 7 have low compression.
1 and 7 have around 30-40 psi. the rest are 115-135.
pulled it in my garage and begun the the removal. didn't get very far today got interrupted and had to stop. all i got off was the air intake and sprayed some penetrating fluid on the cat bolts to help with removal.
#2
#3
I've posted a few tips and tricks to aid removal in other thread - I'll try and locate it. The main one if pulling the engine out from the top is to keep the trans on the engine, and use a trolley jack on it's tail as you pull the whole thing up and forward out of the car. Also remove the front wheels and drop the front of the car as low as possible.
#4
Not to discourage you from a complete rebuild if that's what you want to do, BUT. You might want to pull the heads first and check for dropped valve seats. The engine uses pressed in valve seats and have been known to drop out and cause LOW compression. You may not have anything wrong at all on the bottom end BUT then again you might.
Just a passing thought.
Just a passing thought.
#5
Not to discourage you from a complete rebuild if that's what you want to do, BUT. You might want to pull the heads first and check for dropped valve seats. The engine uses pressed in valve seats and have been known to drop out and cause LOW compression. You may not have anything wrong at all on the bottom end BUT then again you might.
Just a passing thought.
Just a passing thought.
I was thinking the same thing. Another clue was low on coolant.
Belmon has the car ever overheated. Overheating can cause the valve seats to drop and give you a lower compression reading on those cylinders. As Vern suggested just take the heads off and see if this is what happened. More than likely you problem is in the heads.
IMHO.
#6
Ok so the car has never over heated when I was driving it the temperature always stayed at the middle of the gauge. Also when I did the timing I replaced the thermostat and the thermostat housing. Also the rear main seal is leaking. If the rear main was not leaking I would just pull the heads and look at the valves.
#7
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#8
Ok so the car has never over heated when I was driving it the temperature always stayed at the middle of the gauge. Also when I did the timing I replaced the thermostat and the thermostat housing. Also the rear main seal is leaking. If the rear main was not leaking I would just pull the heads and look at the valves.
Best of Luck.
#9
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Belmon (01-13-2018)
#12
Ok so now that the holidays are over and done with I have started the removal process and I’m now just waiting for my engine stand and engine hoist to show up. Also does anybody know the best way to get to the left engine mount bolt? At the time I got to that part it was to dark. That bolt and the hoist/stand are the only thing holding me up right now. Got everything off in about 6 hours.
#16
#17
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Belmon (01-13-2018)
#19
#20
I did a leak down test on on #1 and #7 and they lost pressure. I did that in October. Also I told myself if I’m pulling the valve covers again I’m pulling the engine out to do the rear main seal and to fix other leaks that I cannot see.